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ChannelStrip 3 Users Guide

1. Master Enables Gate Sidechain 0 0 n HERE Si ii METRIC HALO a x 12 12 Gate Expander 6 Band EQ 96 30 426 30 24 18 129630 Aa is 129630 Band Gain Freq Bw hoo EA WEEN A A O w a w a 4 2 as N Le N ChannelStrip 3 User s Guide ChannelStrip 3 Users Guide Metric Halo Revision v1 0 5 Publication date Mon Jun 24 12 11 12 EDT 2013 Copyright 2013 Metric Halo MH Production Bundle ChannelStrip 3 Character HaloVerb Multiband Dy namics Multiband Expander Precision DeEsser and TransientControl are our trademarks All other trademarks are the property of their respective owners Table of Contents incollo 8 do enn SE dIE S S 1 rasos 10 abile ai 11 Niola 11 WIR a 15 A adelaide 16 Update NOUE IRR oa 21 A re leadis 22 OUEN DE OE EE EE NE EE EEU Ee 25 Ais COCK AO cs ARIA TI 27 Cono 27 MOS CeO Se ER E RA GE GE T 28 PD SE is ET T E E O AEE A E 28 EEE AYO gotta N AT a a 29 SideeRain Route WI ao MR 29 echale BUON a idad 30 Compressor nara cer ts a 30 User Intertace Control as a 30 o A OE AE TE N EE EE 30 Grapns Diselosur CONC SR GEE ON EE eee RSS 30 PI NCI ma E A O ES te en 31 Gal REGUEH OIM a EG ella 31 Peak RMS VUSONPUEMECIer srl cid 31 EE IS o A A EG EE A eae 32 SIDS CU US AIO FL Va er oa 33 PY le WN A EE ei alia 34 o se II 34 A A RO Ad AE EE TR NE EE 35 A Detailed DCSE tl OM sa ee ER ee ety fo ia inten ee De ati 35 PUE EOnditONIKS s
2. Figure 5 10 Low Cut Low Cut a 12 dB octave low cut filter with a 3dB point that is continuously adjustable between 20 Hz and 20 kHz k Figure 5 11 High Cut High Cut a 12 dB octave high cut filter with a 3dB point that is continuously adjustable between 20 Hz and 20 kHz Figure 5 12 Low Shelf Low Shelf a shelving filter that applies boost cut to low frequencies Boost cut is limited to 12 dB 24dB The bandwidth controls the dip peak that is added at the end of the transition band Figure 5 13 High Shelf High Shelf a shelving filter that applies boost cut to high frequencies Boost cut is limited to 12 dB 24dB The bandwidth controls the dip peak that is added at the end of the transition band Figure 5 14 Bandpass Bandpass a bandpass filter with 6dB per octave skirt on the high and low ends of the pass band The width of the pass band can be adjusted between 0 1 octaves and 2 5 octaves and the center of the pass band is continuously adjustable between 20 Hz and 20 kHz Filter Enable Button Use this toggle button to enable each filter band When the filter band is turned off the signal will pass through the filter unchanged 45 Processing Filter Band Boost Cut Control Use this knob labeled dB in the illustration to adjust the gain of the filter band for the peaking high and low shelf filter types This parameter is ignored for the other filter types In the shelving fi
3. Soft Interpolation of band Bypass in ChannelStrip EQ Fix slight transparency on some controls Fixed problem with tool tip tracking Fixed problem with phantom mouse clicks after dragging beyond UI boundary Fixed problem with silent output from CS2 CS3 on some hosts with disconnected sidechain input Fixed problem with compressor gain state on instantiation ChannelStrip removed recall of Bypass from preset state to match standard PT behavior Add support for Mac OS 10 5 Add support to cancel text entry with 38 Command Control Control on Win Fixed interpolation to support bit clean bypass Fixed noise problem with LF high pass filters Fix problem with tooltips appearing even if window is covered by another window or is hidden Added a preference to control auto enable of bands to the Transfer Function popup menu in Channel Strip 3 Fixed interpolation in ChannelStrip e Stereo EQ bands e Compressor Limiter threshold e Stereo Gate Fixed interpolation in Multiband Dynamics e Compressor Limiter threshold Knee control in ChannelStrip 3 is hidden when not in MIO character mode Added version number reporting and update notification Initial release for Windows AAX Initial release for Macintosh AU Initial release of ChannelStrip 3 for GarageBand Fixed issue with grunge when DSP is filled with MH Precision De esser Further optimized CS3 Precision De esser and MH MultibandDynamics leading to an increase in instanc
4. iss sees seek ee Ge ee ee ee eek ee ea ee ee ee ee 51 losie SPSS tad ias 52 od ea A e EE 53 Ma ee PCO EE o OE DE ao 53 7 As GE anmelsiplnserted ses Ge EE DR EE EG EG hanes Ee ie 53 45 AGCESSINS ie PIE in Setting 53 7 46 haninelstiips User Inte aca 54 Lf Gal ASE Banish des n SIE lt 54 List of Tables 6 1 Rel VA Ad A A A 5 A 6 Pro Tools Key Commands MOOI Conto isso 57 MU Sv 57 Numero Held INICIOS alia 57 NOn 57 EO Teler PUR CAOS ds oa 57 Pro Tools Key COMMANDOS ii A A A ieee SA 57 Part Installation Table of Contents MS be tel Re qUe nen dis 10 A AO a 11 DATE WTO y EA ees RR IE ON CRE N 11 Wii 15 CORR 16 Update Noonan 21 1 System Requirements Pro Tools Macintosh Pro Tools 10 or higher running on a Macintosh computer This software sup ports Native and AAX DSP operation Pro Tools Windows Pro Tools 10 or higher running on a Windows computer This software supports Native and AAX DSP operation Native Any Macintosh DAW that supports Audio Unit plug ins An iLok copy protection key and account Please note that one Production Bundle license authorizes the software on any platform GarageBand GarageBand running on a Macintosh computer ChannelStrip 3 for GarageBand is func tionally the same as other versions of ChannelStrip 3 with the following exceptions e ChannelStrip 3 for GarageBand will only run in GarageBand If inserted in another host it will mute audio every
5. Ul Size Control This button switches the overall ChannelStrip user interface between small medium and large sizes to acco modate different display resolutions Tooltip Control Figure 4 19 Tooltip Control This button toggles the tooltip display When enabled tooltips wil be shown when the mouse hovers over a control When the tooltip display is disabled you may still see tooltips by holding down the key and hovering over a control Graphs Disclosure Control Figure 4 20 Graph Disclosure Button The Graphs disclosure control allows you to show and hide ChannelStrip s display graphs This allows you to maximize screen real estate while still providing details on the processing when they are needed Click on this control to toggle the visibility of the graphs ChannelStrip will automatically make the plug in window smaller when you hide the graphs 30 Operation ChannelStrip also uses a number of standard visual representations to give you feedback about what is hap pening within the processor These elements are Peak Meter 42 36 30 24 18 129 6 3 0 Figure 4 21 Peak Meter ChannelStrip provides a peak reading meter at the input stage of each processing block The meter uses the fast PPM standard for decay time 0 9 seconds per 20 dB and the digital PPM standard legend for calibration On the dynamics sections gate and compressor a white bar is visible on top of the meter and indicates the current detector level Fo
6. topa P Li i Y Figure 3 1 ChannelStrip s User Interface 20 4 Operation As with most channel strips ChannelStrip provides many copies of controls that are all operated in a similar manner The ChannelStrip user interface uses a few different control elements to control all of the processing These elements are Control Knob Control Knobs are used to control the value of various continuous parameters of a process Examples of these types of parameters include Attack time Release Time Threshold etc There are four styles of encoders Figure 4 1 Swept Knob The rings around these encoders sweep from a minimum to maximum value normally from left to right One exception is the compressor threshold which sweeps from right to left Figure 4 2 Plus Minus Knob The rings around these encoders start at 12 o clock and sweep to either side These knobs are used for gain control where straight up is no gain change turning to the left cuts the signal and turning to the right boosts it Figure 4 3 Spread Knob The rings around these encoders start at 12 o clock and spread to both sides equally as the control is increased These knobs are used for bandwidth controls Figure 4 4 Limiter Knob The ring around this encoder displays the amount of gain reduction from the limiter The display sweeps around the encoder from right to left with a fully left display indicating 12dB of gain reduction 27 Operation Y
7. On Toggle buttons are simple on off switches They light up when they are on and are dark when they are off You toggle the state of the button by clicking on it These buttons are used to enable processor sections select keying sources and to switch the order of processing within ChannelStrip Fader Figure 4 7 Master Fader The fader is unique in that only one fader is used in the interface for ChannelStrip It works in much the same fashion as the control knobs Instead of dragging up right or down left to change the value you directly drag the fader knob The other tricks described for the knobs also work with the fader The fader is used to control the master output gain of the plug in before the limiter stage 28 Operation Filter Type Each filter band in the strip 6 EQ bands and 2 Side chain bands has a filter type control that allows you to choose the shape of the filter applied by that band Each band provides 6 different types of filter shapes Figure 4 8 Peaking Parametric Peaking Parametric a second order bell shaped parametric boost cut filter Boost cut has a range of 24 dB When the boost is greater than 15 dB the filter gains a resonant quality The center frequency of the filter can be any frequency between 20 Hz and 20 kHz The bandwidth of the filter is continuously variable between 0 1 octaves and 2 5 octaves Figure 4 9 Low Cut Low Cut a 12 dB octave low cut filter with a 3dB
8. With The Transfer Function td a 46 MaS aN cnt E Lotta N 46 BEA Ee de E ERI 46 boiler 46 24 3 Introduction ChannelStrip is a plug in for digital audio workstations which provides the essential basic channel processing found in the channel strip of a modern mixing console Processing functions include e Input level control e Phase Invert e Expander Gate with filtered sidechain e Compressor with filtered sidechain e 6 band Parametric EQ e Channel delay e Limiter e Advanced metering ChannelStrip 3 has several notable new features not present in ChannelStrip 2 e Updated and resizable user interface e Sidechain listen e Scalable gain reduction meters e New MIO compressor character e SpectraFoo spectrum analysis e Limiter e Fully interpolated EQ section with scalable display e Processes are automatically enabled when adjusted 25 Introduction L A 4 0 uyu EE NE aa N EE Master Enables HE Gate Gate Sidechain 0 0 DOGO SI e N 6 6 9 9 12 12 Gate Expander 6 Band EQ 18 18 42 36 30 24 18 129 630 MH WE 129 6 3 0 24 24 4236 30 24 129 63 0 Band Gain Freq ED Ed WEEN 400 00 an EEN GEN WEN A 36 36 o 60 40 20 o 10 100 1k 10k Fy 42 42 Compressor Comp Sidechain Ale 1000 00 nee EPA fi 0 00 A E NE ooo ae Lim esh E EET a E oo Q Q Q i 500 00 100 Bm ooo EE 7 o gt N A Master Gain _ 110 51 0 61 Fe T
9. applied to the signal after the gain reduction applied by the compressor If the Auto Gain switch is off this is the amount of makeup gain applied If the Auto Gain switch is on then this parameter is a trim added to the internally computed makeup gain The makeup gain is enabled and disabled along with the rest of the compressor Compressor Character Use the compressor character button to determine the overall dynamic characteristics of the compressor There are three classic ChannelStrip 2 settings to choose from e Smooth appropriate for full mixes or single instruments that do not have big transients Provides very smooth compression with few artifacts no distortion and limited transient control e Warm the most versatile setting for the compressor Balances transient control with audibility of the compression Appropriate for a wide range of signals including harmonic instruments with large tran sients e g Plucked bass e Fast provides significant transient control at the expense of transparency and added distortion Appro priate for impulsive signals with significant transients Supports very fast e g 1 sample gain reduction attacks as well as a new algorithm for ChannelStrip 3 e MIO provides the compressor characteristics from the MIOStrip compressor that runs on our interfaces This compressor algorithm is very different from the other three The MIO compressor generates its gain reduction directly from
10. by the solid colored bar and the VU level by the overlaid gray bar Both the Peak and RMS level are represented with fast PPM ballistics The VU meter shows IEEE standard 300 ms RMS average level When ChannelStrip is on a mono insert there will be a single meter When ChannelStrip is running in stereo mode the left meter shows the left channel output level and the right meter shows the right channel output level The output section clip lights activate if there is an over in the output stage or in any of the processing section input stages It is reset by clicking on the meter Mac N Option click or Windows Alt click to reset the clip lights on all the meters A Note About Clipping Indicators The clip lights do not mean that the plug in is clipping it means that the audio level in the DSP is currently over O dBFS If you do not lower the signal level you run a chance of actually clipping the input of another processor or D A convertor EQ Transfer Function Figure 4 24 EQ Transfer Function The following information applies to the EQ processing block as well as the sidechain filters of the gate and compressor The EQ transfer function is a combination of a visual representation of how the EQ is processing the signal and an intuitive controller for the associated filter bands This display is sometimes called a Cartesian Graph by other EQ manufacturers The horizontal axis provides frequency calibration in Hertz Hz The verti
11. gain only about 1 2 dB even though the readout on the knob will go up to 30 dB This is an internal limitation of the compressor Compressor Knee Control The Knee knob allows you to adjust shape of the compressor transfer function when the Compressor Char acter is set to MIO the Knee control has no effect for the other compressor character algorithms and will not be visible in those modes 39 Processing When the Knee control is set to 0 the transfer function of the compressor is a classic hard knee in which the compressor applies no gain reduction when the detector is below the threshold and the gain is reduced by the ratio when the detector level is above the threshold Compressor BO 60 40 20 o Figure 5 5 Knee Control at 0 When you increase the Knee parameter from O to 1 the knee of the transfer function gradually softens until the compressor functions as a soft knee compressor when the Knee parameter is 1 Compressor B0 60 AO 20 0 Figure 5 6 Knee Control at 1 You can also adjust the Knee parameter to negative values which has the effect introducing a kink in the compressor transfer function at the threshold This can yield useful results on percussive material Compressor 10 20 30 40 B i AD amp D 40 20 0 Figure 5 7 Knee Control at 0 5 40 Processing Manual Make Up Gain The O Gain knob allows you to manually adjust the makeup gain
12. or elements of the project to a range that is reproducible It does this by making the soft material louder and the loud material softer This type of processing can also be used to change the character of the sound instead of just adjusting the dynamic range The compressor in ChannelStrip excels at both types of processing Compressor Enable This button is in the Master Enables section When this button is off the compressor section will not change the signal The order of this button will change depending on whether the compressor is set to Post EQ Post EQ The Post EQ button places the compressor section after the equalizer in the signal chain By providing the capability to switch the routing on the fly ChannelStrip allows you to determine the most effective routing for your particular signal quickly and easily Auto Gain When the Auto Gain button is enabled the compressor automatically adjusts the makeup gain in the com pressor output stage so that if the manual O Gain knob is set to O dB the static gain reduction for a O dB input level will be about 7 dB This number was chosen because it works well with the default settings of the Attack and Release knobs to provide enough pad to not clip fast transients The O Gain knob will apply additional trim to the internal automatic gain If the threshold is set very low e g 60 dB and auto gain is enabled you will not be able to add very much manual
13. point that is continuously adjustable between 20 Hz and 20 kHz a E Figure 4 10 High Cut High Cut a 12 dB octave high cut filter with a 3dB point that is continuously adjustable between 20 Hz and 20 kHz Figure 4 11 Low Shelf Low Shelf a shelving filter that applies boost cut to low frequencies Boost cut is limited to 12 dB 24dB The bandwidth controls the dip peak that is added at the end of the transition band Figure 4 12 High Shelf High Shelf a shelving filter that applies boost cut to high frequencies Boost cut is limited to 12 dB 24dB The bandwidth controls the dip peak that is added at the end of the transition band Figure 4 13 Bandpass Bandpass a bandpass filter with 6dB per octave skirt on the high and low ends of the pass band The width of the pass band can be adjusted between 0 1 octaves and 2 5 octaves and the center of the pass band is continuously adjustable between 20 Hz and 20 kHz You can select from these types via three different methods Each time you click on the Filter Type control the band will switch to the next type in the list and wrap to the beginning when you hit the end of the list If you click and hold the mouse button a pop up menu listing all of the types will appear after about 1 4 of a second You can select the type directly from this pop up menu If you want to access the menu without having to wait hold down the Mac Control key when you cli
14. the detector level The Attack and Release parameters directly control the measurement of the detector level This allows the MIO compressor to function as a limiter as well as a compressor and a leveling amplifier The MIO compressor algorithm also supports an adjustable Knee In general the MIO algorithm is more flexible and controllable than the other algorithms and as a result we have made it the factory default for ChannelStrip 3 Threshold Control The Thresh knob controls the level at which the compressor begins to reduce the gain applied to the signal When the detector level is below the threshold level no gain reduction is applied As the detector level in creases above the threshold level the gain is reduced as indicated by the knee diagram associated with the compressor The compressor knee is soft The ratio increases as the difference between the detector level and the threshold increases The compressor threshold level is also indicated by the red bar above the gate input meter You can adjust the threshold level using this indicator as well as by using the Thresh knob Ratio Control The Ratio knob controls the terminal ratio used to compute the gain reduction of the compressor When the ratio associated with the soft knee hits the ratio specified by the ratio knob the knee hardens and remains at the same constant ratio If you set the ratio to 1000 1 the compressor will have a soft knee for all inp
15. this software for all users of this computer All din users of this computer will be able to use this Installation software Summary Change Install Location GoBack Install Figure 2 6 Selecting the Installation Location We recommend that you use the standard installation location unless you have a specific reason not to The standard locations are 13 Installation e Plug ins drivename Library Application Support Avid Audio Plug Ins MH Plug Ins e Presets drivename Library Application Support Digidesign Plug In Settings Click Install e You must now enter the name and password you use to log in to your computer to give the Installer permission to write the software installer is trying to install new software Type your password to allow this Password Cancel ini sore Figure 2 7 Giving the Installer Permission Enter your credentials and click Install Software e Once the installer has finished you ll see this dialog 000 Install MH Production Bundle a The installation was completed successfully Introduction O License Destination Select Installation Type Installation The installation was successful Summary The software was installed Figure 2 8 Installation Complete If you do not see the Installation Successful message contact MH Support e The final step is to go to http www ilok co
16. x PT 11 Fix auto suffixing of parameter readouts to deal with negative numbers TransientControl Fix extend range of the sustain parameter Fix locking for threaded plotter of crossover functions to avoid potential race condition and crash Mac Fix problem with signing 32 bit binaries led to corrupted PT 10 3 x plugins Fix Gain Reduction meters for PT reported meters so that PT11 and control surfaces render them prop erly Fixed potential problem with licensing code when plugin scanner opens and closes plugin very quickly Moved drawing of HaloVerb impulse response onto background thread for responsiveness Moved drawing of Multiband dynamic EQ response onto background thread for responsiveness Added caching for background image of plugin window to reduce CPU used for drawing static image Fixed incorrect interpretation of wet dry parameter when computing HaloVerb impulse response display Optimized computing HaloVerb impulse response display Optimized redraw of EQ response curve Fixed problem with incorrectly showing that preset was changed when it wasn t via Compare button Deferred redraw of UI until host sends parameter changed message fixes PT UI pauses when changing certain parameters Fixed problem with parameter notification that caused recording of automation for ChannelStrip to not function Added work around to fix problems with multi parameter touch automation recording in Logic works around Logic bug 59 Changelog
17. 4 dB In the peaking filters the maximum boost cut is 24 dB When you increase the boost for a filter band above 15 dB the filter gets nicely aggressive and resonant Filter Band Frequency Use this knob labeled Hz in the illustration to adjust the characteristic frequency of the filter For the peaking and bandpass filter types this controls the center frequency of the filter For the high and low cut filter types this control adjusts the 3 dB point of the filter For the shelving filters this control adjusts the shelf transition point Filter Bandwidth Use this knob labeled BW in the illustration to adjust the characteristic width of the filter This control only has effect for peaking shelving and bandpass filter types Please note that this parameter controls the bandwidth measured in octaves not the quality factor or Q If you have been using Q controls the numbers will be backwards from what you are used to Small numbers mean narrow filters and large numbers mean wide filters For peaking and bandpass filter types this parameter controls the bandwidth of the filter in octaves For the high and low shelving filter types this parameter adjusts the amount of dip peak and the slope of the shelf When this parameter is set to 0 1 you will get the largest dip slope available and when the parameter is 2 5 you will get a classic first order shelf which has a transition band that is about 1 decade wide e g if it is a hi
18. Compare TER Copy Paste Figure 7 1 Logic s Plug in Window If you have inserted the plug in as we suggested above you can click on the Show Channel Strip pop up to switch between instances of the plug in on different channels The Show Insert pop up allows you to switch to another insert on the same channel You would use this to switch to another plug in on the same channel When the Link button the button with the chain icon is on a single plug in window is used to display all plug ins Turn this off if you would like to have multiple plug in windows open at once The View button is used to toggle between the generic AU user interface for the plug in and the standard view provided by Metric Halo The Bypass button allows you to bypass the effects of the plug in The effects of all the processing sections within the plug in are removed from the audio chain when the plug in is bypassed The Compare button allows you to toggle between the current settings and the settings as they were before the last paramenter change By using the Compare button you may A B changes in settings The left right arrows move backward and forward between presets The Logic preset menu the pop up menu with the small downward pointing triangle next to the left right arrows allows you to manage presets and libraries of settings for the plug ins Use this menu to save libraries or open groups of libraries See your Logic documentation fo
19. Mac Win or Mac Control click on the transfer function you will see a menu to set options for the spectragraph Show Instantaneous Trace Toggles whether the spectragraph shows the instant response of your audio Show Average Trace Toggles whether the spectragraph shows the averaged response of your audio Show Left Channel Toggles the left channel spectragraph display Show Right Channel Toggles the right channel spectragraph display These settings are stored for each transfer function window separately and for each instance of ChannelStrip Dynamics Knee Compressor Figure 4 26 Dynamics Knee ChannelStrip contains a Dynamics Knee diagram for the gate and compressor processing sections The diagram provides feedback on the response of the associated dynamics processor Both the horizontal and vertical axes are calibrated in dBFS The horizontal axis corresponds to the input level and the vertical axis represents the output level The heavy line shows the dynamic of the associated processing block This means that if you sent in a sine wave at a given input level the output level would be equal to the level shown on the graph When the processor is working with real dynamic signals the graph is a good approximation of the response when the attack is fast and the release is slow In most cases however the dynamic response of the processor will not match its static response In order to represent this we have included a bo
20. T PROMPTLY RETURN THE MEDIA ON WHICH THE SOFTWARE IS FURNISHED WRITTEN MATERIALS HARDWARE IF ANY AND OTHER ITEMS WHICH ARE PART OF THIS PRODUCT TO THE PLACE WHERE YOU OBTAINED THEM FOR A FULL REFUND This legal document is an agreement between you the user Licensee and Metric Halo Distribution Inc hereinafter METRIC HALO Licensor LICENSEE ACKNOWLEDGES HAVING Print Save Go Back Continue Figure 2 4 Accepting the License Agreement e Now select the disk you would like the software to be installed to 12 Installation Select a Destination How do you want to install this software Introduction License Lid Install for all users of this computer Destination Select Installation Type 4 Install on a specific disk Installation Summary Installing this software requires 50 MB of space You have chosen to install this software for all users of this computer Go Back Continue Figure 2 5 Selecting the Installation Disk We recommend installing for all users unless you have a specific reason not to Select the drive and click Continue e Next you have the option to select the location on the disk you would like the software to be installed to Standard Install on Arkham Introduction License This will take 50 MB of space on your computer Destination Select Click Install to perform a standard installation of 8 Installation T
21. also hear the effect of the sidechain filter When you are done listening to the sidechain click this button again to hear ChannelStrip s normal output Sidechain Routing Button This button labeled C in the illustration is used to control the routing of the input signal to the gate sidechain When the button is in the C state the signal used by the sidechain is the signal being processed by Chan nelStrip When the button is in the SC state the signal used by the sidechain is the input or bus selected in the side chain input pop up in your DAW s plug in window header If nothing is selected in that pop up the input to the sidechain will be silence and the gate will never open Sidechain Filter Enable This button labeled SC Ena allows you to toggle the sidechain filter in and out of the audio path to the detector Filter Type Button This button indicating a peaking parametric filter in the illustration is used to select the filter type of the single band of side chain EQ You may choose from the 6 different types of filters detailed in the filter type section in Operating the Strip 37 Processing Filter Band Boost Cut Control Use this knob labeled dB in the illustration to adjust the gain of the filter band for the peaking high and low shelf filter types This parameter is ignored for the other filter types In the shelving filters the maximum boost is 12 dB and the maximum cut is 2
22. cal axis provides level calibration in decibels dBr The heavy green line indicates the relative change in level at each frequency that is created by the combined effects of all of the active bands in the equalizer Each EQ band is represented by a colored dot in the transfer function The color of the dot matches the color of the rings around the knobs for the corresponding EQ band The band that is currently being edited will be displayed along with the overall response curve If the associated band is a parametric filter there will also be two smaller colored dots that can be used to control the bandwidth of the filter Clicking on a large colored dot and dragging will allow you to adjust the frequency and gain of the 32 Operation associated band Mac 38 Command click Windows Control click or double click the dot to toggle the band enable Mac Option click or Windows Alt the dot to adjust the bandwidth dragging right increases the bandwidth left decreases the bandwidth Mac Y Command Option click or Windows Control Alt click the dot to switch the band filter type Click and drag the smaller dots associated with a larger dot to adjust the filter bandwidth To dismiss the filter curve click anywhere in the black area of the transfer function This will deselect the filter point and the only trace displayed will be the green master curve If you right click Mac Win or Mac Control click on the transfer function you will
23. chain Enable allows you to monitor the audio being sent to the compressor s detector This will allow you to listen to external audio that is being routed to the sidechain and also hear the effect of the sidechain filter When you are done listening to the sidechain click this button again to hear ChannelStrip s normal output Sidechain Routing Button This button labeled C in the illustration is used to control the routing of the input signal to the compressor sidechain When the button is in the C state the signal used by the sidechain is the signal being processed by ChannelStrip When the compressor is in the SC state the signal used by the sidechain is the input or bus selected in the side chain input pop up in your DAW s plug in window header If nothing is selected in that pop up the input to the sidechain will be silence and the compressor will never compress You can use the filter to achieve a de essing effect by using the bandpass filter to only compress when the ess is present You can also achieve a combined compression de essing effect by using a peaking filter to accentuate the ess frequencies and adjusting the threshold and ratio to perform compression when the ess is not present and limiting when the ess is present Take a look a the presets for examples Sidechain Filter Enable This button labeled SC Ena allows you to toggle the sidechain filter in and out of the audio pa
24. ck or right click Mac Win Sidechain Routing Switch Figure 4 14 Sidechain Routing Switch Operation Each sidechain routing switch allows you to control the signal sent to the sidechain input of its associated gate or compressor By default the level detectors in the dynamics processors key off of the signal that they are processing Under some circumstances you may want to use a different signal to open the gate or compress the signal Most DAWs allow you to specify an input or bus as the source for ChannelStrip s sidechain input The Sidechain routing switches allow you to choose the input to the level detector from the sidechain key input or the signal being processed To toggle the state click the Sidechain routing switch Sidechain Listen Button Figure 4 15 Sidechain Listen Button Disabled Figure 4 16 Sidechain Listen Button Enabled The sidechain listen button allows you to listen to the signal being sent to the gate or compressor sidechain input This allows you to monitor the audio being routed from the key input and hear the effect of sidechain filtering Compressor Character Figure 4 17 Compressor Character Switch The compressor character controls the time constants of the compressor section It functions identically to the Filter Type control except there are only four choices Smooth Warm Fast and MIO See the section on the compressor for more information User Interface Control A Figure 4 18
25. d to accentuate or cut certain frequencies parametric or shelf filters or limit the key to a certain range of frequencies cut or bandpass filters You control the filter type and the filter parameters with the filter type button and the dB Hz and BW knobs You can enable the sidechain filter with the enable button After the sidechain signal has been processed by the sidechain filter it is measured by a level detector that determines the instantaneous level of the signal in the case that ChannelStrip is running in stereo mode the detector is linked with the other channel in the stereo pair and the higher level of the two channels is used When the compressor is enabled the signal will be attenuated based on how much the detected level is above the threshold you set with the Thresh knob and what compression ratio is set with the Ratio knob The dynamic behavior of the opening and closing of the gate is controlled with the Attack and Release knobs and the compressor character switch Audio Dynamics Compressors are important in controlling the dynamic range of the source material you are working with While the instruments your ears the microphones and your digital audio workstation all have dynamic ranges that are greater than 100 dB most reproduction and delivery media have significantly reduced dynamic ranges Compression is used in its simplest form to help reduce the dynamic range of your project
26. desired channels and ensure that the plug in is inserted on the same insert point on every channel e g ensure that the plug in is on insert a for every channel This will allow you to take advantage of a number of time saving features provided by Pro Tools Plug in Window The illustration below shows the standard Pro Tools plug in window Track Preset gt Auto Audio 1 factory default ma BYPASS MH ChannelStrip AM COMPARE SAFE Native O x mo key input Figure 6 1 Pro Tools Plug in Window If you have inserted your plug in s as we suggested above you can click on the channel name pop up in the upper left hand corner of the window labeled Audio 1 above to switch from channel to channel The next pop up in the window labeled b above allows you to switch to another insert on the same channel You would use this to switch to another plug in on the same channel The bypass button allows you to bypass the effects of the plug in The Pro Tools editor librarian button the small downward pointing triangle provides access to a pop up menu that allow you to manage presets and libraries of settings for the plug in Use this menu to save libraries or open groups of libraries See your Pro Tools documentation for more information The preset library pop up menu labeled factory default above shows the active preset name in italics if the current settings do not match the library Click this pop up
27. e counts Fixed bit cleanliness on bypassed CS3 blocks so now CS3 with phase invert nulls with unprocessed audio Substantial optimization of the processing code especially for HDX Accurate Cycle Counts for HDX Enhanced control surface page table layouts Fix for some corner case bugs that apparently can cause a DSP crash on heavily loaded systems Additional interpolation of various parameters in the plugins to provide glitch free parameter changes Fixed a conflict between CoreGraphics and DAE that can lead to DAE errors DSP Native CPU Spiking or CPU overloads Native Fixed a filter stability issue for high session sample rates Fixed an issue where the average trace in the analyzer view can get stuck Reduce the size on disk and in memory of the plugins Fixed some missing control surface metering support and clip detection Fixed some small graphic anomalies Fix for detector for classic compressor in CS3 when Side Chain filter is enabled 60 Changelog e Signed installer for Mountain Lion compatibility 1 0 Initial release for Macintosh AAX 61
28. e efficient and sounds better By adjusting the various parameters associated with each band in the EQ you can control the tonal and timbral balance of the signal The resonance effect of the peaking filters provides a facility to recreate acoustic resonances that are lacking in the source material with which you are working One of the nicest aspects of the filters in ChannelStrip is their time domain performance These filters ring significantly less than comparable filters in other signal processors This allows you equalize signals without the normal time smearing that you encounter with other equalizers 44 Processing Master Enable Button This button is in the Master Enables section When this button is off the EQ section will not change the signal The order of this button will change depending on whether the compressor is set to Post EQ Filter Type Button This button indicating a peaking parametric filter in the illustration is used to select the filter type of the single band of side chain EQ You may choose from 6 different types of filters Figure 5 9 Peaking Parametric Peaking Parametric a second order bell shaped parametric boost cut filter Boost cut has a range of 24 cB When the boost is greater than 15 dB the filter gains a resonant quality The center frequency of the filter can be any frequency between 20 Hz and 20 kHz The bandwidth of the filter is continuously variable between 0 1 octaves and 2 5 octaves
29. e illustrate the overall structure of the processing system provided by ChannelStrip The diagrams do not indicate the various metering blocks The configuration is controlled by the Post EQ button in the compressor and it changes the path of the signal through the processor The internal signal switching provided by ChannelStrip allows you to explore the various effects of re ordering processing blocks without having to waste time stopping the transport removing and reinserting plug ins and then finally restart ing the transport Input Phase Invert Now lets examine the various processing blocks indicated in the diagram Input Conditioning After the signal is routed to ChannelStrip it runs through the phase invert block This block is controlled by the Inv switch When the phase invert is enabled the polarity of the signal will be flipped The signal is cross 35 Processing faded between the uninverted and inverted states so the signal level will drop briefly when you flip the state of the phase invert switch but it will not introduce a glitch or click into your audio After the the phase invert block the audio is routed through an input gain block that provides input gain of up to 24 dB You can use this gain to condition signals that are low in level This input gain may also be used to pad out signals by up to 24 dB While you may find this attenuation useful to just bring down the level through the s
30. e settings yourself put your mouse over the icon to the left of the ChannelStrip slot you will see it turn into a picture of sliders ena Noise Gate ChannelStrip e Manual Figure 7 5 Accessing the Plug in Settings 53 AU Hosts Mac Click on the slider icon to open the ChannelStrip UI iron ChannelStrip on Manual Master Enables Wa Boece 4 dtu Gate Expander 6 Band EQ di 16 12 0 10 JP 3 24 TA 129610 Gain Freq Figure 7 6 ChannelStrip s User Interface Plug in Window The illustration below shows the settings in the GarageBand plug in window ChannelStrip On Manual Figure 7 7 GarageBand s Plug in Settings e On This checkbox lets you turn the plug in s processing on and off e Preset list Clicking on this menu will allow you to select from ChannelStrip s presets The Manual setting starts as a blank slate where you can make your own adjustments You can select a preset to get a different sound then switch back to Manual to hear the settings you dialed in If you have made adjustments to ChannelStrip that you would like to use again select Make Preset and name your preset You will now be able to use these settings on other tracks and in other songs 54 Part IV Appendices Table of Contents RR CON ale ON LS EE EE AE sy ond eats ne Bi OSCE and SU PO A SEE OE TN RE OE OE N RE OO N EE ON 56 A Key Commands There are several key commands used as modifi
31. ee 27 42 Plus MES KO ad 27 do GE See race 27 ENE oe lie Sie od AA N RA N N 27 4 moesie BUTONON li 28 A lO A RA Ee N dus a Ronse coat GE ina totus aes Ge OGE 28 ANA SI a 28 400 beakiti Pararne tie sella 29 Ee AS EE AE A RE OE EG 29 Cia 29 LIE ala ded i 29 BERE MT OR KEER EL 29 o TER CRON ARRE RIINA DATI ENE OE OE 29 4 As ide lain ROUINO S WIEN allearsi 29 4 15 Sidechain Listen Button Disabled cc eccccceccecceccccecceucecceeeceseeseeaensensensecseuseceeuseueeueens 30 4 16 Sidechaim Listen Button Enabled e e LI 30 4 17 Compressor Character SWITCH slo 30 Be issih OE Cono leali 30 LIO zola o 30 AO Caray Diselosuie BULON road aaa 30 2 RCS sli 31 422 EdinReduictiorNlelel aelred 31 Da DIMELO OE ON EE EE EE N 31 AA METRO lalla 32 sew no O a lille 33 ChannelStrip 3 Users Guide RARR OE uile pria 34 Sl Signal Flow Compressor IS PrE EO alcoi da toni lapices 35 52 ena Ao Compressor IS POSEI mr ld alate 35 REI nali 36 Dik COMPICSSON it 38 5 5 IMCS CONGO At sara ie IA pl 40 ab MC COMO i paa ideas acid aera that oder lia lia 40 57 MES CORO dd 40 50 EO SECON slice 44 59 Peakine Pal amMele entonar dd dad illes 45 on AE N GE N ED ON ME RI EO a 45 SUPE OR ce GO RO ete Ge OR ota teased 45 Deb OWE oo anti 45 collana na 45 A RE OE ME OO OE IE OO OE TO 45 os ME IAA Cotos cd 46 Gu Pre Tools Pie ANIA salle 50 0 2 Ge de Eed Me assi ER EE N ER OR EE 50 6 3 Automation Window Showing ChannelStrip s Parameters
32. el goes above the threshold level When this control is set to Auto the attack rate is controlled by how much the detector level is above the threshold When you set the attack to another value other than Auto that value measured in milliseconds will control how quickly the gate opens The maximum value is 100 milliseconds Attack times other than auto are especially useful when using the gate as a trigger If the key signal is a little early you can use the attack to delay the trigger slightly It is also useful to remove the initial transients of impulsive sounds Release Control The Release knob controls the release time of the gate This parameter is measured in milliseconds and can range from 5 ms to 5 sec The release time controls how quickly the gate closes after the detector drops below the threshold value For settings below 90 ms or so the gate closes pretty abruptly and may introduce unwanted artifacts into your audio depending on the signal Using The Sidechain Key Input w Selectable Filter The gate provides a sidechain that processes audio before the detector determines the current level The sidechain can process either the channel signal or some external side chain input signal Sidechain Listen Button This button the speaker icon next to the Sidechain Enable allows you to monitor the audio being sent to the gate s detector This will allow you to listen to external audio that is being routed to the sidechain and
33. ers combined with mouse actions Table A 1 Tooltip Control Mac Key Sequence Windows Key Sequence Show tooltips Hold down Hold down Table A 2 Control Knob Modifiers Mac Key Sequence Windows Key Sequence 46 Command click and drag Control click and drag Reset to default value N Option click or double click Alt click or double click Table A 3 Numeric Field Modifiers Dismiss numeric pop up amp cancel Command ESC Control Control ESC change Table A 4 Meters Mac Key Sequence Windows Key Sequence Reset Clip XE Option click the meter Alt click the meter Table A 5 EQ Transfer Functions Command Mac Key Sequence Windows Key Sequence Toggle band enable 46 Command click or dou Control click or double click fre ble click frequency dot quency dot Adjust bandwidth click then drag N Option click frequency dot Alt click frequency dot Change filter type 36 Y Command Option click Control Alt click frequency dot frequency dot Access EQ TF settings 2 Control or right click graph Right click graph Table A 6 Pro Tools Key Commands Command Mac Key Sequence Windows Key Sequence Display Automation Dialog 8 Option Command click Alt Control click Show Automation Breakpoint 53 Control Command click Control Windows click Set Parameter to Default Value XE Option click or double click Alt click or double click 57 B Service and Support Metric Halo tak
34. es great pride in the reputation for customer service and support that we have built If you have any problems questions or suggestions please get in touch with us at e http mhsecure com support e support mhsecure com e 727 725 9555 Note for ChannelStrip 3 for GarageBand Users ChannelStrip 3 for GarageBand is not eligible for phone support Please use one of the online methods listed above above Please keep us informed about your successes and projects We love to hear from you 58 C Changelog Please note that this changelog incorporates changes for all plug ins across all supported formats 1 0 5 1 0 3 Fix alignment issue with some UI elements in ChannelStrip AU Fix issue in some hosts where parameter updates may be lost Fix for potential crash on deinstantiation in Multiband Plugins AU Fix for crash in some hosts specifically FCPX due to initialization on a thread AU Fix meter reset for MultibandCompressor AU Fix meter reset for MultibandExpander AU Fix potential crash in HaloVerb AU Fix meter reset for Character Fix meter allocation for MultibandExpander Fix analysis buffer allocation for MultibandExpander Fix analysis buffer allocation for MultibandCompressor Fix analysis buffer allocation for De Esser AAX Add support for PT11 and 64 bit build AAX Win Implement full optimization for host code decreases CPU usage AAX Win Implement 64 bit Installers Sign Binaries for PT 10 3
35. five seconds e There is no sidechain support e ChannelStrip 3 for GarageBand does not include technical support via phone 10 2 installation Screenshots to illustrate the installation process are from the Production Bundle but the process is the same for individual plug ins Macintosh Please note The following graphics show installation on an OS 10 7 system the process may be slightly different in other versions of the OS but the basic concepts are the same Small details such as file sizes shown may vary with subsequent releases e Double click the MH ChannelStrip pkg application Figure 2 1 MH ChannelStrip pkg e The installer dialog will appear 000 Install MH Production Bundle a Welcome to the MH Production Bundle Installer MH Production Bundle O Introduction The installer will guide you through the process of installing the Metric License Halo Production Bundle for Pro Tools 10 This version of the bundle ee supports both AAX Native and AAX DSP Destination Select You will need to have a valid license on your Lok for this software to run Installation Type If you do not have a license contact Metric Halo to purchase one Installation Summary Go Back Continue Figure 2 2 Opening Dialog Click Continue e Now you will see the Metric Halo License Agreement 11 Installation Software License Agreement Introduction License Me
36. geBand Installing your Metric Halo software product is a simple process e Double click the MHChannelStripGB pkg application 16 Installation Figure 2 13 MHChannelStripGB pkg e The installer dialog will appear Claris Welcome to the ChannelStrip GB 3 Installer ChannelStripGB v 3 0 2 8 Introduction The installer will guide you through the process of installing the License ChannelStrip for GarageBand plugin ChannelStrip for GarageBand has two limitations 1 The plugin only works in GarageBand it will run in demo mode in Installation Type any other AU host 2 Metric Halo only provides online support for this product Telephone support will require the purchase of a support incident Summary During the installation process after you click the Install button or Upgrade button in the case of an upgrade or reinstallation a license installer window will pop up You need to enter the serial number that was provided with your software into the serial number field of this window If you do not enter the correct serial number you will not be able to complete the installation The serial number enables the installer to create the proper license for your plugin You can find the serial number on your invoice for online purchases or on the license certificate for in store purchases O Destination Select O Installation Go Back Continue Figure 2 14 Opening Dialog Click Conti
37. gh shelf with a frequency of 10 kHz and a gain of 10 dB the gain will be at O dB near 1kHz Compressor Depending on the state of the Post EQ button the default state is for the compressor to come first in the signal chain the next block in the signal processing chain is the compressor The compressor is used to adjust the high level dynamics of a signal As with the gate the sidechain can be used to make the compressor frequency sensitive so it can be used like a de esser or to reduce the gain of the signal in response to some external event this allows the compressor to be used like a ducker or for other creative effects Figure 5 4 Compressor Often you will want to compress the signal before you equalize it Sometimes you will need to equalize the signal before you compress it ChannelStrip provides that flexibility with the Post EQ button This is a very 38 Processing important part of ChannelStrip because it allows you to test different processing scenarios quickly and easily It also allows you to compare the two different approaches without having to stop the transport so you can get a much more visceral comparison Theory Of Operation The operation of the compressor is very similar to the gate Based upon your setting for the sidechain routing switch either the sidechain input signal or the channel signal is fed to the sidechain filter The sidechain filter provides one band of equalization that may be use
38. idechain signal has been processed by the sidechain filter it is measured by a level detector that determines the instantaneous level of the signal in the case that ChannelStrip is running in stereo mode the detector is linked with the other channel in the stereo pair and the higher level of the two channels is used When the gate is enabled the signal will be attenuated based on how much the detected level is below the threshold you set with the Thresh knob The dynamic behavior of the opening and closing of the gate is controlled with the Attack and Release knobs 36 Processing Gate Enable This button is in the Master Enables section When this button is off the gate will not change the signal Threshold Control The Thresh knob controls the level at which the gate opens and closes When the detector level is above the threshold level the gain through the gate is O dB When the detector level is below the threshold level the gain is reduced at a ratio of 1 2 This means that if the detector is 3dB below the threshold the signal output will be 6dB below the threshold or 3dB below the input level The gate threshold level is also indicated by the red bar above the gate input meter You can adjust the threshold level using this indicator as well as by using the Thresh knob Attack Control The Attack knob allows you to adjust how quickly the gain reduction is decreased to O dB when the detector lev
39. ith the automated parameters Off No color Read Green Touch Latch Write Red Controlled via control surface Blue Key Commands The following key commands are used to when clicking on controls Table 6 1 Pro Tools Key Commands Command Mac Key Sequence Windows Key Sequence Display Automation Dialog 8 Option Command click Alt Control click Show Automation Breakpoint Control Command click Control Windows click Set Parameter to Default Value XE Option click or double click Alt click or double click 51 7 AU Hosts Mac The Production Bundle is compatible with any Core Audio compatible host Support for features like sidechains differ between hosts please check your host s documentation for more info As an example we ll look at using the Production Bundle in Logic Logic Logic provides a standard interface for controlling various aspects of AU plug ins While you should refer to your Logic documentation for a complete description we will summarize the most important points here If you wish to use a plug in on multiple channels in your mix you should click and drag the selection marquee over the desired channels in the Mixer and insert the plug in on any one of them this will insert the plug in at the same insert point on every channel Plug in Window The illustration below shows the standard Logic plug in window 5 Audio 1 View 7 Show Channel Strip gt Show Insert 7 Bypass
40. led Descapiol alal alal da ademas 35 NPURCORATON IAS seni aaa 35 Es aa 36 neon OFOP ON SE EE Se GE ee NG SG GE Ee OE AG ae ie 36 EEA AEE T E EE E A e 37 PATE SOI tool 37 RR 37 Release Cono RE SERS Aia 37 Using The Sidechain Key Input w Selectable Filter se ee eek ee ee ee ee ee ee 37 Sidechain Listen BEKOM SS 37 Sideekaim OUI ES BURON lle 37 SiaeelainvEilter ENS 37 Filter Toe Bulli 37 Filter Band BOGst at CONTO Hu EO E ESOS 38 FilteriBand Frequency dos a 38 Filter Ba CIV EC CIM as 38 GODE lai 38 Teo Orpea ON sita ee 39 Audio Dynami lillo 39 Eomipressel Enable EE do 39 Ba Ee KA EO HE EO AE EE S 39 Ee GR AE DR OE OR ER EE N EET 39 Compressor Kie Connie eee dele 39 Manual Makes U pra ao 41 Compressor nara OS 41 FAES ROIT Controla a dado 41 RaO CONTO LA ia 41 E RA OO OOR DE EIER DON EL 41 Reldase CONTO lle 42 Using The Sidechain Key Input w Selectable Filter se ea ee eek AR ee dee ea ee 42 Sidec hant Lister B UNON se lei 42 23 ChannelStrip 3 Sidechala ROUTING BULON alicell 42 tele han EE io EA RE EE OE EE EE EE NE aaa 42 Filter Mey Oe BOOR a dd deca saint eee 42 Eer Band Doo LE 42 Filter Bano Eed dee RR EE EE Ee EN Ee n Ee EE EE ee EWE Ge ee 42 CRI RR A 42 Falzone 43 TREO Or ODETI ON eaa GE ee ee EE EE Ee doi 44 Masten Enable BURG aero 45 Filter Type BUON url E 45 A A en ran ee 45 Filter Band BOU A e E E 46 Filter Bana PRCQUCN e Ellie 46 PCR RR loas 46 Controlling The EQ
41. lters the maximum boost is 12 dB and the maximum cut is 24 dB In the peaking filters the maximum boost cut is 24 dB When you increase the boost for a filter band above 15 dB the filter gets very aggressive and resonant You can use this feature to good effect when you need to reconstruct a resonance for a recorded instrument that lacks one For example you could place a narrow 24 dB peaking filter between 60 and 80 Hz on a kick drum track that lacked a belly for the drum Filter Band Frequency Use this knob labeled Hz in the illustration to adjust the characteristic frequency of the filter For the peaking and bandpass filter types this controls the center frequency of the filter For the high and low cut filter types this control adjusts the 3 dB point of the filter For the shelving filters this control adjusts the shelf transition point Filter Bandwidth Use this knob labeled BW in the illustration to adjust the characteristic width of the filter This control only has effect for peaking shelving and bandpass filter types Please note that this parameter controls the bandwidth measured in octaves not the quality factor or Q If you have been using Q controls the numbers will be backwards from what you are used to Small numbers mean narrow filters and large numbers mean wide filters For peaking and bandpass filter types this parameter controls the bandwidth of the filter in octaves For the high and low
42. m and install the software license to your iLok key That s it Enjoy using ChannelStrip 14 Installation Windows There are two versions of each Windows installer e Installers that end in msi are intended for 32 bit versions of Windows and install the 32 bit version of the plug in s e Installers that end in _x64 msi are intended for 64 bit versions of Windows and install the 32 bit and 64 bit versions of the plug in s This allows you to run Pro Tools 10 or 11 on a 64 bit machine These installation instructions refer to the 32 bit installer but the process is the same for 64 bit instal lations Please note The following graphics show installation on an Windows 7 system the process may be slightly different in other versions of the OS but the basic concepts are the same Small details such as file sizes shown may vary with subsequent releases e Double click the MHChannelStriplnstaller msi application e The installer dialog will appear 4 Metric Halo Production Bundle Setup Please read the Metric Halo Production Bundle License Agreement Metric Halo License Agreement Copyright 2007 2012 Metric Halo Distribution Inc All Right Reserved IMPORTANT PLEASE READ THIS SOFTWARE LICENSE AGREEMENT CAREFULLY BEFORE INSTALLING AND USING THE SOFTWARE METRICHALO CUOR IA Bundle By installing the Software the Licensee is consenting to be bound by and becoming a party to
43. nue e Now you will see the Metric Halo License Agreement 000 AOS Install ChannelStrip GB3 4 amp OL TAS Y Software License Agreement ChannelStrip GB License Agreement 8 Introduction Copyright 2006 2012 Metric Halo Distribution Inc All Right Reserved License IMPORTANT PLEASE READ THIS SOFTWARE LICENSE AGREEMENT O Installation Type CAREFULLY BEFORE INSTALLING AND USING THE SOFTWARE O Destination Select O Installation By installing the Software the Licensee is consenting to be bound by and becoming a party to this Agreement IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT PROMPTLY RETURN THE MEDIA ON WHICH THE SOFTWARE IS FURNISHED WRITTEN MATERIALS HARDWARE IF ANY AND OTHER ITEMS WHICH ARE PART OF THIS PRODUCT TO THE PLACE WHERE YOU OBTAINED THEM FOR A FULL REFUND Summary This legal document is an agreement between you the user Licensee and Metric Halo Distribution Inc hereinafter METRIC HALO Licensor LICENSEE ACKNOWLEDGES HAVING READ UNDERSTOOD AND AGREES TO BECOME BOUND BY THE TERMS OF THIS AGREEMENT WHICH INCLUDES THE SOFTWARE LICENSE LIMITER WADDANTY CVOLLICIONE OE LIADILITYV AND Print Save GoBack Continue Figure 2 15 License Agreement After you have read it click Continue 17 Installation e Next click Agree to accept the License Agreement To continue installing the sof
44. o give the Installer permission to write the software 18 Go Back Continue Installation Installer is trying to install new software Type your password to allow this Password Cancel Install Software Figure 2 18 Giving the Installer Permission Click Install Software to begin writing files e Next you will need to enter your serial number Channelstrip GB 3 Enter 8 Character Serial Number a Select the location to install ChannelStrip GB 3 Select Destination Directory Destination Arkham Library Audio Plug Ins Components After Installation is complete use the Authorizer CS GB3 Application Quit to Authorize and personalize your copy of ChannelStrip GB 3 Install Figure 2 19 Enter the Serial Number Click Install to continue e Once the installer has finished you ll see this dialog Je Congratulations ChannelStrip GB 3 was installed successfully Figure 2 20 Installation Complete If you do not see the Installation Successful message or see this dialog 19 Installation 000 Install ChannelStrip GB 3 a OL AS y There were errors with the installation You may want to try i 8 Introduction O License Destination Select 8 Installation Type Installation The installation failed Summary The Installer encountered an error that caused the installation to fail Contact the software manufacturer for assis
45. ou can change the value of each knob in a number of different ways Click and drag the knob to change the value continuously Dragging up or to the right will increase the value while dragging down or to the left will decrease the value If you hold down the Mac 86 Command key or Windows Control key when you click you will be able to adjust the value with finer precision If you hold the Mac X Option key or Windows Alt key when you click the knob will reset to its default value You may also double click a knob to reset it Click on the number readout of the knob to display a text entry field that allows you to type in a number directly The pop up will remain active until you dismiss it by clicking somewhere else or hitting the return enter tab Mac 38 Command Windows Alt key or ESC keys Hit return or enter to confirm the value and dismiss the pop up Hit the tab key to confirm the value and display an entry field for the next control tab Shift tab will display the entry field for the previous control Hit the Mac 38 Command Windows Control Control or ESC Escape to dismiss the pop up and cancel the change When you enter a number into the pop up entry you can use a couple of abbreviations k multiplies the number by 1000 and m divides the number by 1000 So if you want to enter 16 500 Hz you can just type 16 5k Figure 4 5 Toggle Button Off Toggle Button Figure 4 6 Toggle Button
46. r more information The Copy and Paste buttons allow you to copy settings from one instance of a plug in and paste them into the same plug in on other channels without creating a preset The sidechain input pop up menu allows you to select from any mono input or bus in your system and feed it to the internal sidechain bus within plug ins that have sidechain support You then use the sidechain routing buttons within the plug in UI to assign the sidechain bus to the dynamics detectors This menu is only present when a sidechain enabled plug in is viewed 52 AU Hosts Mac GarageBand GarageBand provides a standard interface for using plug ins While you should refer to the GarageBand doc umentation for a complete description we will summarize the most important points here Inserting CS3 in GarageBand To insert ChannelStrip first higlight the track you wish to put the plug in on You do this by clicking the name of the track in the left hand side of GarageBand Male Basic Figure 7 2 Select the Track Now go to the right side of the window and click on the Edit tab Click on an empty space in the Effects window and select ChannelStrip from the menu Noise Gate Figure 7 3 Insert the Plug in ChannelStrip will now be inserted on your track Figure 7 4 ChannelStrip Inserted You can quickly listen to the presets that ship with ChannelStrip by clicking on the menu that says Manual If you would like adjust th
47. r the dynamics sections the processor threshold is indicated by the red slider over the input peak meter This slider can be manipulated directly with the mouse The top segment of the meter above OdB is used as a clip indicator and is illuminated red if the input section of the processor detects an over The clip light remains illuminated until you click on the meter Mac N Option click or Windows Alt click any meter to reset the clip lights on all of the meters in ChannelStrip When ChannelStrip is running in stereo mode this meter shows the higher of the two input levels and will detect an over on either input channel Gain Reduction Meter 42 36 30 24 18 129 6 3 0 Figure 4 22 Gain Reduction Meter The gain reduction meter which has an orange bar and grows down from 0 dB shows the amount of attenua tion being applied by its associated dynamics processor at any given time If you right click Mac Win or Mac Control click on the meter you may set the scale of the gain reduction meter to any of the following values e 54 dB e 24 db e 12 db e 6 db e 3 db Peak RMS VU Output Meter san ooo Figure 4 23 Output Meter 31 Operation For the main output stage of ChannelStrip we have provided meters driven with SpectraFoo metering tech nology These meters show in addition to the peak metering provided for the input stages RMS level and VU level The peak level is represented by the floating colored bar the RMS level
48. s and enter your registration info Software Registration Information First Last State Region Zip Postal Code Country Phone Fax emailt Support Password choose a word or phrase to confirm your identity Dealer Mame Salespersont DAW Type and Verziont Computer Ty pet Required Field lic OK Recommended Field Figure 2 25 Registration Information Fill in all required information and click OK That s it Enjoy using ChannelStrip 3 Update Notification ChannelStrip 3 will automatically check to see if there s a newer version available if your computer is con nected to the internet If so the version number in the UI will turn into an update notice Click on the notice and a browser window will open to our download page where you may download the newest installer 21 Part Il ChannelStrip 3 Table of Contents o N 25 ADE MON EO ee even TE mn nT Orr ED ner ye em Cory a meray Terry hme anne 27 CONOR 27 NOS DUO SA I E E 28 ble 28 PCR A EI 29 UCSC harm ROUNE WC 29 Sidec hame Listen BUON adria 30 Compressor nara clar nre 30 kserinterace On EE Se EE EG EG ER ala 30 tools ACO GVO REG I REIT III 30 Grapas LD sclosure Conta E Re ee 30 MEd EER AE EE OE IE ME ile 31 Galli KeductiOnvMet va EE a GE dae Sale one Weer oud 31 peak RMS VU Output Meter ada ai 31 AM o A RAEE EG GE IR 32 Spectra sra Ana Z CP SR 33 names Metal EE EE EE RE RE eines 34 PRUNE OME MOSS lei 34 O ara 35 A Detal
49. s a o des 35 ARSE afde ESE IAT 36 Teo OF OBC ION ci 36 ett EEA iii 37 Iinresnole omte RE eil 37 a Eo AA O GE Ge A SNE RIG Re GE Ee ee 37 Release CONTON osa 37 Using The Sidechain Key Input w Selectable Filter seek ee ek ee ee ee ee ee ee 37 lechal Listen BAROR EE N ED BE EE Ee EE de 37 Sidec ia Rou NE BUON dada 37 SideepainF tier Enpa 37 Filters o iau O ee DE RE De He 37 Filter Band BoostEut Control sara 38 Filter Band Preguen RS EE Ge ee N EE DE 38 Filter BINAN i se ias 38 Bere ie HE N ED RO AE IE rent 38 Theor Or Operas allea 39 A CS SE ES EN Ee ER Ge RS ee Ge ei EE ia 39 COMPIESSONENAD pride 39 Y de iii ieri ai e tile eee til eli 39 AUG GO ra ai ia ii EE OE ESE AE au 39 Compressor KN ESA OME ON sicilia 39 ChannelStrip 3 Users Guide Manual Make Ub Galdar 41 Compressor Chara tE illa 41 Mi A EE N Ge E soutes 41 A A CRE IRE een on EE SE ED 41 QUAERERE I 41 ME ede sie AE OR EE DE REEN HE EE N 42 Using The Sidechain Key Input w Selectable Filter sees se ee ee Re ee ee ee 42 Sida han Listen Button aisi 42 Sde haim ROUNE Bilocale 42 Side hant Eiter Ena ple e E E ais 42 bieb E O as lea 42 Filter Band Boost CUE CORTO l aula 42 FERE Ban Fi dderE si GN EG EE GE A NO 42 PNET BWI lalla A 42 Ea EC NE A E SOR ncn 43 Neo ONO peatones 44 Master Enable BUON Ranalli iaia 45 FRE rI VO Bora 45 E 45 Filter Band BOSS CUr CONTO reale 46 Flteribanda Re queney ahaha 46 DEI A ER 46 Con
50. see a menu to set the vertical dB scale for the display The values are e 3 dB e 6 dB e 12 dB e 24 dB e 36 dB This menu also allows you to specify whether adjusting a filter causes it to automatically be enabled This preference is for all instances of ChannelStrip 3 Spectragraph Analyzer Clicking the SpectraFoo logo in the upper right hand corner of the transfer function will activate the spec tragraph showing the realtime frequency analysis of your signal Figure 4 25 Spectragraph Display The traces are e White Left channel instantaneous display e Red Right channel instantaneous display e Yellow Left channel average display e Blue Right channel average display The instantaneous trace updates in real time allowing you to see the immediate peak level of your audio The average trace displays the level as averaged over a short period giving you a more general view 33 Operation The spectragraph analyses the signal post filter allowing you to see the effect of your EQ filter s the EQ s spectragraph is also after the Master Gain and Limiter The spectragraph may only be used in one window at a time and will toggle between sections For example if your are viewing the spectragraph in the EQ window and then click the the SpectraFoo icon in the compressor s sidechain window the spectragraph will switch to that window To disable the spectragraph entirely click the active Foo icon If you right click
51. shelving filter types this parameter adjusts the amount of dip peak and the slope of the shelf When this parameter is set to 0 1 you will get the largest dip slope available and when the parameter is 2 5 you will get a classic first order shelf which has a transition band that is about 1 decade wide e g if it is a high shelf with a frequency of 10 kHz and a gain of 10 dB the gain will be at O dB near 1kHz Controlling The EQ With The Transfer Function As described in the operation guide earlier in this manual you can control each band of the EQ directly from the EQ transfer function display associated with the 6 band equalizer Master Gain The one fader in ChannelStrip s user interface controls the master gain of the plug in This fader is not shown in the illustration of the EQ section but it is shown in the overall processor illustration at the beginning of this manual The Master Gain fader allows you to add up to 10 dB of gain or up to 160 dB of attenuation to the output signal from the EQ processor or compressor block depending on the processor order before going to the limiter Delay Section You can add up to 255 samples of delay to the output of ChannelStrip This is useful for dynamically slipping tracks doing acoustical time alignment or compensating for the delay of other plug ins in your mix You can use automation on the delay to create interesting dynamic flanging effects Simply duplicate a track and enable au
52. tance Figure 2 21 Installation Error contact MH Support Once you have installed ChannelStrip 3 for GarageBand you will need to authorize it e Double click the Authorizer application ci y Figure 2 22 Authorizer CS GB3 e Make sure that that ChannelStrip for GarageBand 3 is listed and click Authorize Choose Product to Authorize The products that can be authorized have been identified and are listed in the following pop up menu Please select the product to authorize Software to authorize ChannelStrip for GarageBand 3 License Full Path ChannelStrip for GarageBand 3 License File in System Domain Quit Authorize Figure 2 23 Selcting the Software e The authorizer will now ask how you would like to proceed 20 Installation A This authorizer contains software to help automate the registration process If your computer can connect to the Internet via either web or email using the automated process will save you time If your computer cannot connect to the Internet you may A use our web registration form on another computer B call Metric Halo to register your product Can this Mac connect to the Internet No Bless Figure 2 24 Authorization Method You may use our online form or call to register your software but the quickest and easiest method is to register online with the compter you are installing the software on If this is the case click Ye
53. th to the detector Filter Type Button This button indicating a peaking parametric filter in the illustration is used to select the filter type of the single band of side chain EQ You may choose from 6 different types of filters detailed in the filter type section in Operating the Strip Filter Band Boost Cut Control Use this knob labeled dB in the illustration to adjust the gain of the filter band for the peaking high and low shelf filter types This parameter is ignored for the other filter types In the shelving filters the maximum boost is 12 dB and the maximum cut is 24 dB In the peaking filters the maximum boost cut is 24 dB When you increase the boost for a filter band above 15 dB the filter gets very aggressive and resonant Filter Band Frequency Use this knob labeled Hz in the illustration to adjust the characteristic frequency of the filter For the peaking and bandpass filter types this controls the center frequency of the filter For the high and low cut filter types this control adjusts the 3 dB point of the filter For the shelving filters this control adjusts the shelf transition point Filter Bandwidth Use this knob labeled BW in the illustration to adjust the characteristic width of the filter This control only has effect for peaking shelving and bandpass filter types Please note that this parameter controls the bandwidth 42 Processing measured in octaves not the quality fac
54. this Agreement IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT PROMPTLY 2 RETIRA THF MENTA ON WHICH THF Ir 5tall Cancel Figure 2 10 Opening Dialog Print After you have read the Metric Halo License Agreement click the I accept the terms of the License Agreement checkbox and click Install e Windows will ask for permission to write the files 15 Installation E Metric Halo Production Bundle Setup a RT User Account Control A mm e Do you want to allow the following program to install Y software on this computer CH Program name 1ec 5 msi Verified publisher Metric Halo Distribution Inc File origin Hard drive on this computer Y Show details Change when these notifications appear Figure 2 11 Permission to Write Files Click Yes to begin the installation e Once the files have been written you will see the completion dialog Metric Halo Production Bundle Setup Completed the Metric Halo Production Bundle Setup Wizard yn Click the Finish button to exit the Setup Wizard MA n 7 di pe A LA a p METRIC HALO Figure 2 12 Installation Complete Click Finish to close the installer If you do not see the Installation Successful message contact MH Support e The final step is to go to http www ilok com and install the software license to your iLok key That s it Enjoy using ChannelStrip Gara
55. to select from the available presets The Compare button indicates when the controls have changed for the current preset settings Click this button to toggle between your current settings and the preset settings COMPARE Figure 6 2 Compare Button Clicking the Automation button causes Pro Tools to display the plug in automation configuration dialog box 50 Pro Tools Mac Win Plug In Automation In Gain Channel Delay Gate Enable Gate Threshold Gate Attack Gate Release Gate SC Routing Gate SC Filter Type Gate SC Enable Gate SC Gain Gate SC Frequency ce SC eat h None ompressor Enable s cri aia Post Eq MH ChannelStrip Compressor Ena Auto Gain None Compressor Out Gain Compressor Character Compressor Threshold None Compressor Ratio None Compressor Attack Compressor Release Inserts None None Compressor SC Routing None Compressor SC Filter Type None Compressor SC Enable Compressor SC Gain None Compressor SC Frequency Compressor SC Bandwidth EO 6 Filter Type i Cancel Figure 6 3 Automation Window Showing ChannelStrip s Parameters This dialog box allows you to enable any or all of the processing parameters for automation When a parameter is enabled for automation you will be able to record and play back automated parameter changes directly from your Pro Tools session If the channel that the plug in is inserted on has automation enabled Character will highlight the controls associated w
56. tomation on the delay control for one of the copies As you change the delay through one of the copies you will create a nice controllable phasey flanging sound Limiter Figure 5 15 Limiter 46 Processing The final processing block in ChannelStrip 3 is a limiter The limiter can be used to ensure that the final output of ChannelStrip doesn t distort due to extreme EQ boosts This also makes it very easy to use ChannelStrip as a mastering plug in on your final mix bus The limiter threshold may be set between 0 and 12 dB using the Limiter Threshold knob The gain reduction is displayed via the ring around the encoder sweeping from right to left The limiter applies autogain to the audio when engaged as the threshold is lowered the output gain is in creased a complementary amount 47 Part Ill Working with Hosts Table of Contents Ge PRO Tool MAC culla ta 50 PISO ICO lele 50 EES o ilaele ila 51 O O A E NR EER RN 52 A iii ii aaa 52 se wl ele RR EE AA A 52 ESE IG ee N O A ie neers 53 nserting CSS GarageBand ER a 53 RENI 54 49 6 Pro Tools Mac Win Your Pro Tools software provides a standard interface for controlling various aspects of AAX plug ins While you should refer to your Pro Tools documentation for a complete description we will summarize the most important points here If you wish to use a plug in on multiple channels in your mix you should Mac X Option or Windows Alt insert the plug in on the
57. tor or Q If you have been using Q controls the numbers will be backwards from what you are used to Small numbers mean narrow filters and large numbers mean wide filters For peaking and bandpass filter types this parameter controls the bandwidth of the filter in octaves For the high and low shelving filter types this parameter adjusts the amount of dip peak and the slope of the shelf When this parameter is set to 0 1 you will get the largest dip slope available and when the parameter is 2 5 you will get a classic first order shelf which has a transition band that is about 1 decade wide e g if it is a high shelf with a frequency of 10 kHz and a gain of 10 dB the gain will be at O dB near 1kHz Equalizer The next processing section is the Equalizer The equalizer may appear in the signal chain before the compres sor section depending on the state of the Post EQ button in the compressor The equalizer in ChannelStrip is a very flexible fully parametric 6 band equalizer Each band in the equalizer can be configured as any of the six available filter types Each parameter in the equalizer is continuously adjustable throughout its entire range so you can set the exact EQ that you need 43 Processing 6 Band EQ 42 36 30 24 18 129 630 Band Gain Freq Figure 5 8 EQ Section Theory Of Operation The equalizer in ChannelStrip work just like every other EQ under the sun with the exceptions that is more flexible mor
58. tric Halo License Agreement WER Copyright 2007 2012 Metric Halo Distribution Inc Destination Select All Right Reserved Installation Type IMPORTANT Installation PLEASE READ THIS SOFTWARE LICENSE AGREEMENT CAREFULLY BEFORE INSTALLING AND USING THE SOFTWARE Summary By installing the Software the Licensee is consenting to be bound by and becoming a party to this Agreement IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT PROMPTLY RETURN THE MEDIA ON WHICH THE SOFTWARE IS FURNISHED WRITTEN MATERIALS HARDWARE IF ANY AND OTHER ITEMS WHICH ARE PART OF THIS PRODUCT TO THE PLACE WHERE YOU OBTAINED THEM FOR A FULL REFUND This legal document is an agreement between you the user Licensee and Metric Halo Distribution Inc hereinafter METRIC HALO Licensor LICENSEE ACKNOWLEDGES HAVING Print Save GoBack Continue Figure 2 3 License Agreement After you have read it click Continue e Next click Agree to accept the License Agreement To continue installing the software you must agree to the terms of the software license agreement Lic Click Agree to continue or click Disagree to cancel the installation and quit the Installer Des Ing Read License Disagree Agree Ins Summary By installing the Software the Licensee is consenting to be bound by and becoming a party to this Agreement IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMEN
59. trip simply and quickly you must realize that this gain is applied after the signal reaches ChannelStrip and will not pad out any clipping that occurs in the A D converters or in a plug in that is inserted before ChannelStrip The input gain is controlled by the In Gain knob Gate Expander The next processing block is the Gate The gate is used to adjust the low level dynamics of the signal being processed Through the use of the external side chain the gate can be used to do acoustic triggers In addition the side chain filter may be used to make the control of the dynamics frequency sensitive This can be useful when you are trying to gate out a noisy signal that has a specific very strong signal in a limited frequency range when you want the gate to open Gate Expander 42 36 30 24 18 129 63 0 42 36 30 24 18 129 6 3 0 Theory Of Operation Based upon your setting for the sidechain routing switch either the Pro Tools sidechain input signal or the channel signal is fed to the sidechain filter The sidechain filter provides one band of equalization that may be used to accentuate or cut certain frequencies parametric or shelf filters or limit the key to a certain range of frequencies cut or bandpass filters You control the filter type and the filter parameters with the filter type button and the dB Hz and BW knobs You can enable the side chain filter with the green SC Ena button After the s
60. trolling The EQ With The Transfer Function ii 46 Mata 46 Dela SOCIO ii nas 46 EA a EE EE EE OE EE OE 46 ENE 48 A RA A A hei 50 PUSAN WV GOW oo 50 EE MAIN CS OO 51 Fe IN TOSS UAC AA A a aa A a 52 a cdo elias usas 52 PICS I NING ERRE 52 CON 53 A A alia 53 PUR aaa 54 Nes IO DOMINGOS sile 55 ICON ee 57 ProCA E EN UPO Re a onda 58 EEIE A 59 List of Figures nn N 11 RO LAE RO EO RE AE EE RE EE DE ON 11 2 9 LICCNSCHVASICEMENE Sile 12 dA ACCEpins tnellicense Agreement iaia 12 2 5 Deleeting tie Installation Delle 13 2 6 Selecting tne Installdtien LOCATON ss RR A EE Ge EG EE Me widen aoe eee a 13 27 LG wine die Installer Permission ss RR SR A Ally red EA Dee 14 2 B Installation AC OMA Stern a A 14 2 0 MI Ehannelstipridistallef mie nulla 15 250 OPERE Dialog ME EE ER EE EG Ge SG oe GE GE ie 15 Dalle ohio elle ea 16 2124 Installation OMAP ICIS a ae 16 25 MACES da Go A o ai 17 ZA OPENS DI O A A n 17 2 E CNA E E E N E E onde OE A A A A 17 2 AGACIN Me LICEM A A BE Ge ee 18 241 7 Startine sine TA ALLO Ming a A cian Gd A O 18 Delo Givimothesinstalle Permission anale 19 ZO Enere Serial NUME alal 19 220 Installation Compleie ss allearsi 19 22 MAG TAN ALO KEN 20 DI SAM NO er OB ED AE LIA ALIENA 20 223 Seletinig MEO 20 2 DA NIRO 21 225 Re istration AMONIO see GE GE GE stoi ok GE GR eed tee eases 21 st anne strip s User Interface ua ED GR Ee GE GR Ge DE 26 AE E SS O EO GER DU DI OR EL EE ON EE ES
61. tware you must agree to the terms of the software license agreement Lic Click Agree to continue or click Disagree to cancel the installation and quit the Installer De O Ins O Summary Print Save e ins Read License Disagree Ms Agree F bound by and becoming a party to this Agreement NOT AGREE TO THE TERMS OF THIS AGREEMENT PROMPTLY RETURN THE MEDIA ON WHICH THE SOFTWARE IS FURNISHED WRITTEN MATERIALS HARDWARE IF ANY AND OTHER ITEMS WHICH ARE PART OF THIS PRODUCT TO THE PLACE WHERE YOU OBTAINED THEM FOR A FULL REFUND This legal document is an agreement between you the user Licensee and Metric Halo Distribution Inc hereinafter METRIC HALO Licensor LICENSEE ACKNOWLEDGES HAVING READ UNDERSTOOD AND AGREES TO BECOME BOUND BY THE TERMS OF THIS AGREEMENT WHICH INCLUDES THE SOFTWARE Figure 2 16 Accepting the License Agreement e Click the Install button Ck TAS n Standard Install on Arkham Introduction O License Destination Select 8 Installation Type Installation Summary This will take 10 7 MB of space on your computer Click Install to perform a standard installation of this software for all users of this computer All users of this computer will be able to use this software GoBack Install Figure 2 17 Starting the Installation e You must now enter the name and password you use to log in to your computer t
62. uncing ball meter for both the gate and the compressor This metering is shown as a red circle that is overlaid on the knee diagram The red circle is placed so its horizontal position is equal to the instantaneous input level and its vertical level is equal to the instantaneous output level Examining this meter while you are adjusting the dynamics controls will provide you with a great deal of information about how the processor is operating and how the controls interact Auto Enables The processing sections of ChannelStrip will automatically enable when one of its parameters are adjusted For example if the EQ master enable is off adjusting any EQ parameter will turn it on This way you will never make phantom adjustments where you make adjustments and hear no change The same is true for the sidechain filters 34 9 Processing A Detailed Description In this chapter we ll discuss what each processing block does and how the controls work Sidechain Spectragraph Select Toggle SC Key Input EE 1 SpectraFoo Sidechain Select O Sidechain Listen S C Enable S C Enable mi Ms l Figure 5 1 Signal Flow Compressor is Pre EQ Input Output Phase Invert Limiter O Sidechain Spectragraph Select Toggle SC Key Input id SpectraFoo Sidechain Select SC y x Output ER S C Enable S C Enable O Input Gain Gate _ L Comp Figure 5 2 Signal Flow Compressor is Post EQ The block diagrams abov
63. ut levels and thresholds This makes the compressor work like a classic all tube limiter compressor Attack Control The Attack knob allows you to adjust how quickly the gain reduction is increases when the detector level goes above the threshold level This control is calibrated in milliseconds and values range from 0 to 500 ms The compressor has an 8 sample look ahead buffer that allows it to have an instant attack when you set the attack time to O Fast attack times will control the transients of impulsive sounds Use longer attack times to let the transients through but control the sustains 41 Processing Release Control The Release knob controls the release time of the compressor This knob is calibrated in milliseconds and can range from 5 ms to 5 sec The release time controls how quickly the gain reduction returns to zero after the detector drops below the threshold value For settings below 40 ms or so the compressor releases pretty abruptly and may introduce unwanted artifacts into your audio depending on the signal In addition be careful making the release time faster than the attack time Using The Sidechain Key Input w Selectable Filter The compressor provides a sidechain that processes audio before the detector determines the current level The sidechain can process either the channel signal or some external side chain input signal Sidechain Listen Button This button the speaker icon next to the Side

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