iVCS3 user Manual 1.2
Contents
1. the first step Continue restart the Sequencer from current position Stop stops the clock if running Sequencer Subdivision Local Tempo Subdivision n men The Subdivision Menu show a list of symbols that abbreviate musical note time values Normal 1 1 1 2 1 4 1 8 1 16 1 32 1 64 Triplets 1 1T 1 2T 1 4T 1 8T 1 16T 1 321 1 64T Dotted 1 1D 1 2D 1 4D 1 8D 1 16D 1 382D 1 64D Where D is a dotted note and T is triplet With 1 4 Default the Sequencer will fire a step every BPM according to Local Tempo or MIDI Clock BPM e 1 4 each step is a quarter note or BPM e 1 4D each step is a dotted quarter note or 1 5 x BPM e 1 4T each step is a triplet quarter note or 0 5 3 etc Feedback The SCOPE jack socket is connected to Column A in the Patchboard Matrix and therefore sees any output connected to the METER In conjunction with the Control Output sockets there are three possible ways of gaining access to the Matrix Board Although this socket is marked SCOPE for Oscilloscope it can be used for a variety of purposes including feeding back a signal into the Studio via one of the Input Amplifiers see section V in the official VCS3 Putney User Manual Naturally you can rescale feedback signals with knobs exponential knobs Oscilloscope Oscilloscope can manage time scale for zooming and amplitude input gain you can read either DC and AC signals Mi2. 4 Keyboard Split Octaves sets the number of keys visible in the main view Spring Reverberation You can select one of the six reverberation modes FDN is 8 delay line stereo FDN reverb with feedback matrix based upon physical modeling scattering junction of 8 lossless waveguides of equal characteristic impedance Based on Csound orchestra version by Sean Costello Parametric is the Eugenio Giordani Schroeder model IR implements direct convolution with VCS3 Spring Impulse lt response Sample Hybrid 1 perform an hybrid model between FDN IR Hybrid 2 perform an hybrid model between Parametric IR The last FTConv perform a convolutions between signal and IR pre loaded table in memory Thus you can perform some interesting actions abbreviate or retrograde IR achieve very interesting results Spring crash use hardware accelerometer for triggering spring tilts as the Original Ring Modulation Two RM types absolute perform a simple multiplication between two signals A and B while VCS3 use a quadratic operator and can also simulate the vintage leakage as the original Knobs Interactions Mode Use this to configure the Knobs dragging behavior Step fine resolution set s how many points of movement result in a one degree rotation in the knob s position Only used in the horizontal vertical slider modes Snapshots Settings The three switch in this section are designed for include or exclude Matrix Keyboard and Sequencer when yo
3. IVCS3 is the official EMS emulator You can learn all that you need to about the EMS VCS3 from the original Users Manual or from the many web resources Important Changes Version 1 1 3 The Ramp wave of VCO 1 has been reversed in polarity according to the Original on the Putney VCS3 The Square wave of VCO 2 and VCO 3 has been modified to recreate the offset drift during PWM Pulse Width Modulation according to original Putney VCS3 The Triangular Ramp wave of VCO 3 has been redesigned to reproduce better the original PWM wave shaping and amplitude according to original Putney VCS3 The changes in VCO VCA and VCF implementations can affect the resulting sound of some old presets Only for the CONTROL INPUT MATRIX marked with I J K N OQ and P maybe you will need to adjust these values and update the old presets The novel glide parameter was introduced to enhance the sound quality of the VCF and optimise the smoothing of the cutoff frequency control You can adjust and trim this parameter Settings to get the best sound you expect In particular the lower the glide threshold the better is the sound when VCF is frequency modulated by the oscillators In other words when high frequency controlled voltages are applied to filter they are low pass filtered by the C31 capacitor This means that the filter will not respond to high frequency CVs and respond slowly to rapid changes in incomi
4. andomizing the d knob This is because we are changing the length of the delay line on the fly and this is having the effect of temporarily transposing the sample that is loaded into the delay line at that time Note The delay line is cleared and reset when you toggle the on button Note d time in Flanger is in the range 1 10 Milliseconds while in Delay is in the range 10 2000 Milliseconds Flanger fo is in the range 0 01 10 Hz while in Delay mode is in the range O 1 for dry wet mix Dynamic Compressor Expander This unit functions as an audio compressor limiter expander using either soft knee or hard knee mapping and with dynamically variable performance characteristics Settings Sampling Rate for full range audio the recommended sampling rate is 44 1 kHz Using a lower rate 1 VCS3 will reduce the number of samples that has to calculate this will facilitate your Device s burden but it will also reduce the frequency range If your device is struggling at 44 1 kHz you should try a lower rate and or increase Buffer Size Buffer Size set the Audio Device latency When you run iVCS3 from Audiobus or Inter App this value will be taken from Audiobus or Inter App Host Warning When an app runs first and keeps running in the background the Sampling Rate and Buffer Size will impose for the whole iOs while running N B i VCS3 require a minimum buffer of 512 on iPad two convolution reverb require 102
5. c Samplers Two Sampler in old Tape fashion are available You can feed iVCS3 with sampler source and or mix signal from microphone see VCS8 original manual for more details When connected in Audiobus or Inter App Audio the microphone signal are taken from Audiobus or Inter App You can pinch in out on the sampler WavePad for zooming in out thus the current selection is the start end loop points Tap and hold down for automatic full Zoom out You can adjust scanning frequency Rate as normal tape and mix direct Mic Audiobus Inter App signal Mix Knob FX Just outside of the Master Output Matrix Columns B and C this 4 Flanger Delay effects can be toggled in three positions Off Flanger and Delay FLANGER The fo i e Low Frequency Modulation and d i e Delay knobs adjust the frequency and amplitude of the controlling oscillator Increasing the amount of feedback with the jg i e Gain or Feedback knob will produce more metallic timbres by reinforcing and emphasizing the harmonic resonances of the internal delay line whose length and resulting resonant frequency is set by the delay knob DELAY The d knob sets the length of the delay line with lower settings corresponding to shorter delays The amount of feedback controlled with the g knob will determine how many echoes will be heard the echo density Note Wild and wonderful pitch glissandi result from riding or r
6. d you can feedback through to the VCS3 Swipe right to left on Snapshots Snapshots Bank or File Manager non built in file to delete You can load the Presets in the current selected bank by remotely sending a MIDI Program Change message The channel listening is the same for the MIDI Note On Off you can configure this setting through Channel in the MIDI Manager see later for further details The available range is O 127 A value of zero will select the first preset in the list 1for the second etc No bank selection is supported yet Filter Glide popover is accessible through the icon Why this parameter is so hidden It s a non original parameter and we did not want to dirty the Originality of the interface N B Old parameters will set automatically maximum Glide amount left this parameter is saved for Snapshots and HVPad e FILTER OSCILLATOR O Slew Unslew Filter mod Q Show the back panel of iVCS3 see Back Panel section 2 gt Enable Disable Accelerometer X Y see the Control Manager for more details Presets Manager this collect all the snapshots banks i e ivcs3 subfixed files A Snapshot could be defined as photo of all user interface parameters matrix and keyboard Sequencer included but can be excluded see Settings When you find an interesting sound you can take a snapshot by touching the plus icon and a new item will be added to selected bank The first four element
7. diobus or Inter App Audio D Paste Audio file from AudioCopy 2 0 clipboard 4 Download files from Dropbox you will need a Dropbox account You can login or logout from the Settings menu lll You can edit the File manager contents for deletion n b This is a destructive action Add files through iTunes Sharing e Connect your iPad to your computer and then open iTunes Select your iPad under the DEVICES header in the left navigation column e Click on the Apps tab above the main window e Scroll down to the File Sharing section e Select iVCS3 from the list of Apps e Under iVCS3 Documents click the Add button this opens a dialog box to select the location of the presets on your computer Controls Manager No MIDI Scrub Y Accelerometer X Accelerometer Y After selecting MIDI VCS3 enters into learn mode i e is waiting for a send message the type of Control Change CC are only supported yet Now it s possible to send messages with MIDI hardware Virtual MIDI and Network MIDI Flashing screen means the association between the parameter and the MIDI message has been successfully and displays the corresponding control Change and Channel In alternative you can enter direct CC and MIDI Channel number through number keyboard You will also receive an additional setting Widget Range that allows you to resize the range of action on the parameter This is because you can use all 128 steps MIDI
8. e touching the top bar step numbers similarly for selecting programming Groove below The Sequencer has two separate Voltage Outputs One for the keyboard DK keyboard going to Input 1 Keys and Input 2 Dynamics The other Voltage Output goes from the Sequencer to the Vertical and Horizontal STICK rows Vertical is the Keyboard Voltage and Horizontal is the Dynamics You can disable only vertical ooth the Joystick Outputs from the toggle N B The Joysticks Vertical Range 16 must be set to 0 32 0 32 V Octave sensitivity for an equal scale as for Input 1 8 The Joystick handles work as an offset you can resets it to zero central handle position double tap for reset DK GROOVE Keyboard Voltage gt Input 1 8 Dynamics Voltage Input 2 9 STICK GROOVE Keyboard Voltage gt Vertical Stick 16 Dynamics Voltage gt Horizontal Stick 15 Sequencer MIDI Clock By enabling the MIDI Clock switch you will see a button green highlighted You can fast switch to the MIDI Manager in order to select a MIDI port and enable it for incoming Clock signals The Sequencer will react to external MIDI Clock The status of connection is visible through the most right icon Now the Sequencer is able to receive MIDI Clock You will no longer be able to set the local tempo instead it will show the incoming master tempo from the MIDI clock master Events on any enabled source as follows Start start the Sequencer from
9. ector or mute You can select Ext Input between DK Sequencer or Mic Sampler or Audiobus Inter App for each channel You will get these through the Matrix INPUTS CH1 CH2 In Mic Sampler mode you can mix both signals Muted is mainly used for clearing the Ext Input if you intend on feeding back through SCOPE Jack socket DK Keyboard VCS3 Keyboard DK produces a voltage control signal of 3 Volt Middle F produce OV High C 1 5V and Low C 5V select three octaves view from Settings As you know you can employ DK as Controller Voltage based or play DK with internal VCO saw For this you have four controls Frequency Dynamic Range Tuning Spread and Level As explained middle F produce OV if you want to tune the iVCS3 you will need to play F adjusting the Frequency knob to 369 99 Hz i e temperated F 4 and is default value for VCO 1 and DK VCO Frequency Thus you will achieve standard musical scale tuned to 440 Hz diapason Likewise when you employ DK as Voltage Controller you must calibrate the VCO Frequency controls In the original VCS3 the Tuning Spread range is half semitone although it is voltage where zero spread produce no tuning deviation In iVCS3 this range was extended until 2 semitones and default value is O means no spread When you use DK as Voltage Controller Tuning spread can be done by the Input Level Ch 1 or 2 on the main panel Also notice the DK Keyboard puts a 1V for octave output well y
10. ed by the keyboard dynamic key voltages goes to input2 that you can patch to VCO1 amp 2 frequency so all three track in pitch Another difference between the Original Analogue DK and VCS3 DK is the Legato behavior In the Original DK the priority goes to the highest note this means that if you re holding down a note the lowest notes can not be played until you release the held note You can switch between the Original VCS3 legato and NEW to improve the playability of the keyboard on the legato through the Settings Locking the DK Keyboard in the DK Keyboard it means every note is sustained So when you play a note it will hold the last pressed key even when you lift your finger from the keyboard When the Keyboard is locked Snapshots will save restore touched keys see Settings for more explanations Sequencer Also note that the DK Keyboard puts a 1V for octave output well you need to trim this voltage using the Input Level Channel 1 or 2 to 0 32v if you want 12 notes within an octave if input level knobs are at other settings you will get tones per keyboard octave this is good for using other scales like quarter tone 19 or 21 notes octave or such Sequencer is fully programmable you can impose direction steps number tempo and random direction from the Sequencer Manager while Groove Values sets informations for every step We have two independents grooves one for the DK and other for the Joystick Eve
11. l change its color from red to blue You can receive MIDI Clock from one port at a time you can enable disable the clock for the current port or mutually selects another one in the list You can receive MIDI Clock from one port at a time you can enable disable the Clock for the current port or mutually selects another one in the list Channel sets the input channel for the selected port the iVCS3 DK Keyboard will receive the Note On Off messages in OMNI from all 16 channels or one of the 16 channels Back Panel Back panel provides experimental features as Sequencer Samplers and Effects It should be considered an experimental environment OUTPUT Channels feeds a chain of Flanger Delay Compressor FX INPUT is from hardware Microphone or software bus as Audiobus Inter App Audio or from Integrated Samplers INPUT can be also feed from DK Sequencer or From SCOPE feedback All Signals connected to the METER in the Matrix will be shown in the Oscilloscope and you can feedback through to the VCSS3 Ext Input The first features you need to understand is the Dk Sequencer Mute or Mic Sampler switch As you know the VCS3 is Voltage Controlled Based and you have to think that the DK Keyboard or Sequencer or Sampler provides a Voltage Signal which feeds the VCS3 You can get this from Matrix Row 8 and 9 Input Channel 1 and 2 and you can employ this for controlling or feeding the VCS3 audio modules This triple switch is a source sel
12. ng CVs The knob parameter sets the C31 cap from the CV input circuit so the filter will respond to high frequency controlled Tips amp Tricks MAINS Toggle on off DSP Digital Signal Processing iVCS3 supports mix audio with other applications you can also disable DSP in order to save battery and CPU consumption You should not toggle off when is connected to Audiobus or Inter App Audio Double tap on the Knobs to show the options Edit to enter the value from the keyboard or Randomly Default reset to the factory value You can set Knobs behavior from Settings Tap over the Matrix for zooming now it s possible make connections tap or drag outside Matrix area for Zooming out and pinch for the removal of all the connections Tap over the Recovery Pins Matrix bottom to change pins colors white and green White pins are 2 7K Ohm resistance and green ones are 68K Ohm In digital domain it means white pins no attenuation green pins 0 66 Pinch In Out on the Sampler Waveform for Zooming long press Tap to fully Zoom out Double Tab in the Joystick handle to reset at the central position i e zero iVCS3 can play audio in the background and or mix it s own audio with other iOS apps iVCS3 also supports Apple IAA i e Inter App Audio for iOs 7 or higher and Audiobus you can send and receive audio through applications All Signals connected to the METER in the Matrix will be shown in the Oscilloscope an
13. ns over the file according to file type For example you can send files as an e mail open file with a listed app etc F You can rename files in Documents Folder if you omit the file extension File Manager will fill the original audio file extension for you n b File manager shows only audio files supported the other files iInDocuments folder will not be seen O You can pre listen to the samples before you load them J Access to the iPod library this allows the application to read user s songs audio books and audio podcasts The file can be converted in wav PCM 16 bit 44 1 kHz or caf formats and stored in the local app Documents Folder If the file exist at path progressive number will be attached to the file name Q Starts audio capture from the microphone immediately and save new stereo audio file in wav format 44 1 kHz 16 bit in the Documents Folder Files created are composed by id name followed by a number for example Input Rec 4 wav Input Rec 65 wav etc Every new file will be numbered with the highest number on the list You can load directly from the Audio Grab when stop the recording if you have selected one of the two samplers n b Depending on the device input audio you will see one or two V Meters for the Left Right channels it means you will record a mono or stereo file in wav format 16 bit 44 1 kHz Grab Audio always records signal from iPad microphone even if your are connected in Au
14. ou need to trim this voltage using the Input Level Channel 1 or 2 to 0 32v if you want 12 notes within an octave if input level Knobs are at other settings you Il get tones per keyboard octave this is good for using other scales like quarter tone 19 or 21 notes octave or such Dynamic Range rescaling the signal amplitude for internal VCO When turned all the way to the left no DK play always with the same level mezzo forte when turned all the way to the right you will controls dynamic VCO from pianissimo to fortissimo Playing iVCS3 keyboard keys from top to bottom you can change the amplitude dynamics of the note i e MIDI key velocity 0 127 Another feature of DK there is a VCA inside where you can send an audio signal from the iVCS3 for mixing with the internal DK VCO lf you send something to the METER i e SCOPE jack socket row then that will go to the DK and the signal will be mixed with the internal DK VCO you control the mix with the DK Level Then you can have this mixed signal back to the VCS to input 1 putting the switch to signal The keyboard dynamic velocity will affect this mixed signal What good is this for Well you can send lets say VCO 1 amp 2 to METER they will go to DK mixer and mix the internal DK VCO as the third VCO then put switch to signal and switch2 to key voltage Input 1 goes to input 1 row in the iVCS3 and is the mixed signal of the three VCOs but with the level controll
15. ry groove takes two values for every step Key and Dynamics An auxiliary groove with one parameter is for the Channel 1 Panning this is expressed as absolute and will overwrite when enabled Ch1 PAN Ext in the Main Panel Joystick and Panning Grooves cab be disabled In order to record values in the Groove you will need to Tap DK or STICK buttons and Keyboard AKS fashion will be shown With KS you can be programming Keys and Dynamics Dynamics is controlled playing keys in vertical position O V in the middle part of key height pianissimo on the top and fortissimo at the bottom see Dynamic Range for more details DK Groove values are strictly correlated to DK values Enabling Record in KS Sequencer every note will skip to next Sequencer groove step allowing consecutive notes and dynamics programming And about the Random and Fifth Third etc tone buttons the Random will play a random note every time you push it It work for current groove step or when recording a sequence Record enabled The other buttons will transpose the sequence by the amount it says and they can be combined you can touch several at time for doing more intervals Those interval buttons dont transpose the recorded sequence but introduce an offset voltage when it is touched down After programming Grooves you can enable or disable every Sequencer steps by pushing down Steps buttons Also you can Sync and or jumping through steps during performanc
16. s of the list are assigned for Snapshots Pad Touch Edit to sort or delete them You can also send a selected bank as an e mail attachment and restore Defaults to Built In banks n b All non built in Snapshots for Built In Banks will deleted Snapshot banks are located in Documents folder you can access files via iTunes Sharing see Add files to iVCS3 through iTunes Sharing G You can add new files by copying in the app documents and refresh list from Snapshots Dope sheets Manager Will replace all parameters value as matrix Sequencer toggle knobs etc but will take snapshots notes and name Snapshots bank file is in the Property List format i e ivcs3 you can edit as text and modify the values Recall a snapshot Tapping over the name in the list or Shuffle Button to select randomly Trash will delete all snapshots in selected bank A warning message will be displayed Swipe right to left on Snapshots or Snapshots Bank to delete T The Snapshots Pad or Dope Sheets Pad goal is to obtain intermediate values between four snapshots corners You can change snapshots assigned in the corner through the Snapshots list See above Snapshots Pad performs complex interpolations between four snapshots on a two dimensional space By scrubbing your finger on the Snapshots Pad a temporary new snapshots will be created by mixing the four snapshots depending on distance Thus you can modify hundreds of parameters
17. to control precisely particular part of the parameters Scrub Y binds the widget to vertical movement on the keyboard Scrub Y An additional setting allows you to specify the speed gravity of the action Aftertouch Y Scrub you can assign one or more iVCS3 parameters to aftertouch scrub Y so after a played note you can scrub in the vertical axis Y by controlling one or more of the parameters An additional setting allows you to specify the speed gravity of the action n b Playing keys from top to bottom you can change the amplitude of each note i e key velocity 0 127 The same with the black keys Accelerometer X and Y are used to control the parameters through the horizontal or vertical inclination of the device MIDI Manager you can enable disable the incoming MIDI signal from all the physical virtual and network ports available iVCS3 also understands MIDI Clock signals from remote apps As for the MIDI ports you can enable disable the MIDI Clock on a port and the configuration is saved as default and restored when you open the app The swipe symbol if present indicates that you can fast switch to that app listed in the cell by swiping once to the right _ If the CoreMIDI Network is connected a wifi symbol will appear in the Network port cell x Only ports that receiving MIDI Clock will be displayed as icon touch the clock symbol if present to enable disable receiving MIDI Clock It wil
18. u store a new Snapshot Snapshots Pad Resolution Update sets the time interval for the interpolations from about 15 to 350 milliseconds Short times for higher resolution but higher consumption of CPU Save Restore the Last App Setup when you exit from the application save the status all iVCS3 and Fx Parameters and reload upon next opening of the app Joystick Handle Springy enable disable ea Ka W Dropbox link unlink account
19. with a single touch this is also called Hyper Vectorial Synthesis Snapshots Pad can be resized on fullscreen for detailed controls left bottom icon n b Snapshots Pad have no effect on Matrix Sequencer and Switches Captures Output stereo signal post Effects and creates an audio file wav format 44 1 kHz 16 bit in the Documents Folder Files created by iVCS3 are composed by id name followed by a number for example Output Rec 1 wav Output Rec 7 wav etc Every new file will be numbered with the highest number on the list Sets the iDevice hardware volume i F LLA J i d a D Y Tools MIDI Panic sends a general Message All Notes Off resets the DSP and Keyboard Defaults Reset all default parameters a warning message will be displayed Matrix connections and Sequencer grooves will not deleted Randomize values for all of the parameters not matrix and Sequencer including the Flanger and Compressor Effects the result can be very interesting but sometimes dangerous with the sound too loud but always worth a try File manager File manager can read write in the Documents folder you can also share files through AudioCopy 2 0 or Dropbox File manager can also read the Built in files but you cannot rename or delete them Touch on a file in the list to show the actions popover Thus is possible Load file in one of two Samplers i e Sampler Ch 1 and Sampler Ch 2 Open In contains all system actio
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