Sound Performance Lab 9631 DJ Equipment User Manual
Contents
1. The DSP Platform Enormous computational power guaranteeing real time operation User friendly programmed software Operation Safety CAUTION RISK OF ELECTRIC SHOCK D O NOT OPEN AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR L 5 Connections 49Z1 01399dS 9UD4 ADAY Ep SUWMSE LTRS SQ USPARISPIRIZZELH QU Swaps IIS Tr ss Et ni Ubisog jospeds Aq Buwwoibord d5A Adur ep Ps A lt A o ga A 1901900 eas em vo wr Ut QO f ouno Uh opow ll ml Before connecting the SPECTRALIZER switch the power off at all connected units The rear panel provides AES EBU and S P DIF inputs and outputs Any additional channel status and user bits are passed through unaltered and the outputs can be used at the same time if required The SPECTRALIZER operates with 24 bit word width It accepts 16 bit and 20 bit inputs and will create output signals accor ding to the input resolution For synchronisation purposes WORDCLOCK IN and VVORDCLOCK THROUGH BNC connectors are fitted with a switchable 75 Ohm termination MIDI IN and MIDI THROUGH connectors allow presets to be selected via MIDI program change commands For easy upgrade of future software releases the rear panel offers RS 232 interface for PC and RS 422 interface for MAC Installing Updates Note All presets will be lost after installing a new software version 1 Connect your computer with the SPE2. DI SOUND PERFORMANCE LAB Spectralizer 2 Manual ma ro a ry parr i a D DIGITAL NARMONICS PROCESSOR Spectralizer Model 9631 Digital Harmonics Processor SOUND PERFORMANCE LAB SPECTRALIZER MODEL 9631 Manual by Hermann Gier and Paul White Version 2 2 1 1999 The information in this document has been carefully verified and is assumed to be correct However Sound Performance Laboratory SPL reserves the right to modify the product described in this manual at any time Changes without notice This document is the property of SPL and may not be copied or reproduced in any manner in part or full without the autho rization of SPL Limitations of Liability In no event will SPL be liable for any damages including loss of data lost profits cost of cover or other special incidental consequential or indirect damages arising from the use of the unit however caused and on any theory of liabi lity This limitation will apply even if SPL or an authorized dealer has been advised of the possibility of such damage SPL electronics GmbH P O Box 12 27 D 41368 Niederkruechten Germany Phone 49 21 63 9 83 40 Fax 49 21 63 98 34 20 eMail info spl electronics com www spl electronics com 1999 SPL electronics GmbH All Rights Reserved CE Foreword Thanks Introduction Operation Safety Connections installing Updates Quick Start Flow Chart Control Elements ACTIVE INPUT
3. 7 to increase their loudness SPL Spectralizer 3rd harmonic Spectralizer DENSITY increases the loudness of the generated harmonics by applying different compression ratios The control offers six positions Adjustment If DENSITY is set to 0 the generated harmonics have low intensity even at high values for 2ND and 3RD HARMONIC The increase in high frequencies is mostly created by the highpass filtering which applies a shelving equalizing above the adjusted FREQUENCY encoder see FREQUENCY 3 Increasing DENSITY to 1 or 2 will increase audibility of the generated harmonics High DENSITY values 4 to 6 may lead to audible distortion depending on the source material Use the SOLO function see 9 to hear the harmonics in isolation The LC display shows all encoder settings More information is displayed when activating the INFO pages see 9 Press STORE and Apply for one second to enter the INFO pages The SOLO function switches the original input off You will hear the effect signal only to be able to monitor the highpass filte ring and harmonics generation The Kick function boosts the amplitude of the generated harmonics in the event of creation attack period After that the amplitude drops back to its original value Kick should be used when you want to apply additional sparkle and presence to the signal The SPECTRALIZER allows you to store up to 99 pres
4. possible should be automated to promote user friendly opera tion the external controls access only the sonically relevant parameters Additionally all controls with a wide value range e g 0 to 100 are programmed with an alpha dial logic Turning the encoder rapidly causes the values to jump in steps of 10 whereas tuming the encoder slowly causes the values to proceed in single increment steps The housing of the SPECTRALIZER has the standard 19 EIA format and occupies 1U 44 mm in your rack When installing the unit in a 19 rack the rear side of the unit needs some support especially in a touring case The SPECTRALIZER should not be installed near units which produce strong magnetic fields or extreme heat Do not install theSPECTRALIZER directly above or below power amplifiers Check that the voltage details quoted on the back panel are the same as your local mains electricity supply Use a minus screwdriver to set the voltage selector to the voltage for the area in which the unit will be used Never cover up the ventilation slots on the top of the unit If during operation the sound is interrupted or indicators no longer illuminate or if abnormal odor or smoke is detected or if liquids are spilled on the unit immediately disconnect the power cord plug and contact your dealer Only clean your SPECTRALIZER with a soft lint free cloth Spectralizer Input and Output PPM metering Analogue control feeling
5. rma t AF Si E B U WC AES EBU input with wordclock detected Spectralizer or Input Format no AES EBU WC AES EBU input without wordclock is detected Press APPLY Input Format S PDIF S P DIF input detected or Input Format noj SI P DIF no S P DIF input detected Press AppLy if S P DIF is detected Input Format S P DI F WIC S P DIF with wordclock detected or Input Format no S P DIF _ WC S P DIF input without worddock is detected 3 Displaying the detected sample frequency Sample Frequency 44 1 KHz The SAMPLE FREQUENCY will be detected automatically The display either shows 44 1 kHz 48 kHz or 32 kHz 4 Displaying the Audio Error flag Audio Error No No no error detected YES error detected 5 Displaying the CRC Error flag CRC Error NO No no error detected YES error detected Spectralizer L Control Elements 13 Cont
6. the date of manufacture Some states or countries do not allow limitations on how long an implied warranty lasts so the above limitations may not apply to you This limited warranty gives you specific legal rights and you may also have other rights which vary from state to state country to country SPL electronics GmbH 41372 Niederkriichten Germany Spectralizer L 17
7. CTRALIZER via a serial port with a standard Z modem cable RS 232 for PC and RS 422 for MAC 2 Openaterminal program like Hyperterminal on PC and make the following adjustments Baud rate 9600 Stop bit 1 Parity none Data bit 8 Handshake no Transfer mode ZMODEM 3 Switch on the SPECTRALIZER and depress both Preset UP and Preset DOWN until the LC display says wait for Zmodem download 4 Load the update file into your terminal program and send it to the SPECTRALIZER The LC display shows the progress of the download in kB 5 After successfully installing the new software version the LC display says download valid 6 Switch the SPECTRALIZER off and on The new software version number is displayed in the first INFO page simultaneously depress STORE and Apply also refer to CONTROL ELEMENTS No 9 INFO 7 Ifan error occurred during download the LC display says download failed The SPECTRALIZER now waits for a new download Please check all adjustments on your terminal program and try again If you are still unsuccessful contact your local dealer Spectralizer Set all controls to the starting positions Quick Start INPUT GAIN 0 FREQUENCY 1k DENSITY 0 2ND HARMONIC 0 3RD HARMONIC 0 Mix 0 1 Depress Active The status LED illuminates 2 Set Mix to 50 You will notice an increase in high frequencies above 1 kHz starting position FREQUENCY 3 Set DENSITY to 1 to increase t
8. Down LEDs illuminate indicating that a volume change command is received You can also switch between presets with the MIDI program change command This can especially be useful when you are mastering a song for example that requires different settings for chorus refrain or bridge The APP LED illuminates indica ting that a program change command is received MIDI IMPLEMENTATIONS __ Function Received Data Basic Channel Change stored Control Change 7 1 127 Volume Program Change real value You leave the INFO pages by depressing STORE The OuTtPuT LED chains are PPM peak level meters with 13 Output PPM signal and clip indicators The metering offers 1 dB resoltion for Output PPM the last 3 dB before OdB The first LED in the OUTPUT PPM meter is a signal Sic LED to indicate that a valid digital source is connected and detected This LED helps you to verify the signal flow within a digital processing chain If one Sic LED is not illuminating you have a first indication of a faulty digital signal flow The last LED of the OUTPUT PPM meter is a Cur LED The LED illuminates if the digital signal is too hot causing digital distor tion Spectralizer L 15 Specifications 16 sal Input Output Sample rate frequency autom AES EBU twisted pair AES EBU in amp output impedance S P DIF co axial 2 S P DIF input impedance Wordclock In Through co axial Wordclock in output impedance MID
9. GAIN FREQUENCY Mix 2ND HARMONIC 3RD HARMONIC DENSITY LC DISPLAY SOLO Kick PRESETS InFo Hardware dialogue OuTPUT PPM Specifications Warranty NN U1 AWW aS 23 cok ARA AIA NO Uh Ada di dl da maa O O O O oo oo Dear customer Thank you for the confidence you have shown towards SPL electronics GmbH by purchasing the SPL SPECTRALIZER You have decided to use a tool of high performance which sets you in the position to have faster success and a better sound quality in your music productions and pre masterings As a typical SPL unit the SPECTRALIZER combines exemplary specifications and high manufacturing standard with excellent sound quality to provide you a precious component for studio and mastering purposes Please read this manual carefully to ensure you have all the information you need to use the SPECTRALIZER We wish you every success with the SPECTRALIZER Your SOUND PERFORMANCE LAB Team 1 would like to start with my thanks to all our staff who created what is to be described here Special thanks go to J rg Houpert Klaus Peter Webersinke and Andreas Skdbe from Spectral Design as well as Harald Obenland from Octum elec tronics The importance of their exceptional qualification and talents cannot be overestimated Our products are often tested and compared in many publica tions and by our customers themselfs and constantly valued with best results would like to pass on this broad appreciation to those wh
10. I In Through RS 232 RS 422 max 14V Clip display Input transformer AES EBU Output transformer AES EBU Relay Hard Bypass AES EBU Measurements AES EBU Jitter S P DIF Jitter Wordclock In Jitter Power supply Torroidal transformer Fuse GND Lift switch Voltage selector Dimensions Weight 32 48kHz AES 3 110 Ohms SPDIF 2 75 Ohms BNC 75 Ohms yes yes yes yes yes yes yes Ins 3ns 1 5ns 60 VA 1A slow blow yes 115V 230V 195 10 482 x 44 x 350mm 4 9 kg AES EBU is defined for levels from 2V to 7V Measurements AES EBU 4 4V with load 2 S P DIF is defined for levels from 200mV to 700mV Measurements S P DIF 500 mV with load Subject to change without notice Spectralizer SPL electronics GmbH hereafter called SPL products are warranted only in the country where purchased through the authorized SPL distributor in that country against defects in material or workmanship The specific period of this limited warranty shall be that which is described to the original retail purchaser by the authorized SPL dealer or distributor at the time of purchase Warranty SPL does not however warrant its products against any and all defects 1 arising out of materials or workmanship not provided or fumished by SPL or 2 resulting from abnormal use of the product or use in violation of instructions or 3 in products repaired or serviced by other than authorized SPL repair facili
11. In comparison to ostensibly similar analogue systems the SPECTRALIZER does not produce any phase deterioration nor introduce unmusical intermodulation products Operation The SPECTRALIZER is fitted with six encoder controls and the actual parameters values are shown in the LCD window INPUT GAIN sets the overall input level with gain adjust ment available from 20dB to 6dB while the starting frequency for the re synthesis of the harmonics is set using the FREQUENCY control This functions as a high pass filter adjustable over the range 1kHz to 7 kHz in 500Hz steps signals with a frequency lower than that selected using the FREQUENCY control remain unaffected The DENSITY control offers a choice of six settings to determine the amplitude envelope of the added harmonics and works rather like a digital compressor to increase the density of the re synthesized harmonics which makes them more prominent The 2ND and 3RD HARMONIC controls set the relative levels of the re synthesized harmonics while the Mix control defines the balance between the new harmonics and the original signal The SPECTRALIZER has three switch functions SOLO mutes the original input signal so that the added harmonics can be heard in isolation while Kick adds a greater proportion of harmonics to transients attack parts of the signal The Active button switches the SPECTRALIZER in and out of operation when connected via AES EBU a relay operated hard bypass switche
12. coder rapidly causes the values to jump in steps of 10 whereas turning the encoder slowly causes the values to proceed in single increment steps Example All controls are set to the starting position INPUT GAIN 0 FREQUENCY 1k DENSITY 0 2ND HARMONIC 0 3RD HARMONIC 0 Mix 0 Tum the Mix to 50 You will hear an increase in high frequencies above 1kHz due to the starting position of the FREQUENCY control Until now you have not yet added any harmonics The increase in high frequencies is a boost of all frequencies above 1 kHz You can change the starting frequency by tuming the FREQUENCY encoder clockwise to higher frequen cies For some applications this may already do the job To add harmonics set 2ND HARMONIC to 50 and 3RD HARMONIC to 30 If the audible effect is very subtle increase the DENSITY setting to 1 or 2 details see DENSITY 7 The 2ND HARMONIC encoder controls the intensity of the added second harmonics which are being generated above the adjusted highpass frequency see FREQUENCY 3 The second harmonics are even harmonics which bring a soft and silky top end to the sound In comparison to odd harmo nics even harmonics do not contain as much brightness and they also do sound softer SPL Spectralizer 2nd harmonic Spectralizer Eta 9 Control Elements O EIIE Diagram 2 2ND HARMONIC The illustration shows the FFT spectrums of the even harmonics for a measuring s
13. ets which can be changed by MIDI program change command If you want to store a new adjustment depress STORE for one second The LED starts to flash indicating that the STORE mode has been activated The LC display now shows the actual preset number Use UP and Down to select a new preset location The status LED flashes shortly to indicate that the input depressing UP or Down is accepted Keeping UP or DOWN depressed will let you jump through the preset list in steps of 5 presets Once a new preset location is found depress STORE again The STORE LED goes out The preset is stored at the new location In case you want to quit the STORE mode without storing the new adjustments simply press APPLY Spectralizer o Density Control Elements O Kim O EEE O ri 0 Preset Storing a preset Depress STORE for1 sec LED flashes use UP DOWN to select preset no depress STORE again LED goes out L 11 Applying a preset Depress APPLY for1 sec LED flashes use UP Down to select preset no depress APPLY again LED goes out Operation safety Presets can not be changed by accident Control Elements 12 L If you want to apply various presets depress APPlY for one second The Appty LED starts to flash indicating that the APPLY mode is activated You can step through the preset list with UP and Down Once you have a preset that you want to apply depress APPLY again The Apply LED goes out indica
14. he audibility of the harmonics in the next step 4 Set 2ND HARMONIC to 50 and 3RD HARMONIC to 30 If you are using full scale material for this initial test drive the CLIP LEDs may illuminate Reduce the INPUT GAIN to give additional headroom for the new harmonics 6 To compare original and processed signal press ACTIVE The status LED goes out Use the SoLo button to monitor the added harmonics precisely Flow Chart Input Encoder Original Frequency Encoder Diagram 1 Signalflow Spectralizer Spectralizer L Control Elements Spectralizer INPUT GAIN FREQUENCY DENSITY INPUTGAIN FREQUENCY DENSITY 0 2k5 5 100 100 100 2nd Relay hard bypass for AES EBU input and output input Gain INPUT GAIN O for processing pre production material with enough headroom Choose negative INPUT GAIN values for full scale recordings to create new headroom to add harmonics Use positive INPUT GAIN values for low level material 2nd HARMONIC 3rd HARMONIC MIX 1 PRESETS DOWN uP APPLY STORE e e e e MODEL DIGITAL HARMONICS PROCESSOR The ACTIVE function switches the SPECTRALIZER on or off The illuminated LED indicates that the processing is activated The software bypass also compensates for the 5ms time delay between processed and unprocessed signal The AES EBU input and output are equipped with relay hard bypass In the event of a power failure the SPECTRALIZER is automatica
15. ignal of 3 kHz L 9 Control Elements 10 Ein O Diagram 3 3RD HARMONIC The illustration shows the FFT spectrums of the odd harmonics for a measuring signal of 3 kHz Diagram 4 If two frequencies are fed into the Spectralizer here 3 and 4kHz also the diffe rential tone here 7 kHz are being produced All measurements at FREQUENCY 1kHz DENSITY O Mix 100 The control range is 0 to 100 The 2ND HARMONIC encoder is equipped with alpha dial logic Tuming the encoder rapidly causes the values to jump in steps of 10 whereas tuming the encoder slowly causes the values to proceed in single increment steps If the need arises to make the harmonics more audible use the DENSITY control see DENSITY 7 to increase their loudness The 3RD HARMONIC encoder controls the intensity of the added third harmonics which are being generated above the adjusted highpass frequency see FREQUENCY 3 The third harmonics are odd harmonics which carry brilliance but also sharpness and aggressiveness A good combination of even and odd harmonics is the key to a natural sounding top end The control range is 0 to 100 The 3RD HARMONIC encoder is equipped with alpha dial logic Tuming the encoder rapidly causes the values to jump in steps of 10 whereas tuming the encoder slowly causes the values to proceed in single increment steps If the need arises to make the harmonics more audible use the DENSITY control see DENSITY
16. lly switched to hard bypass power failure safety without interrupting the data flow INPUT GAIN controls the input level of the digital source You can boost the input gain by up to 6 dB or attenuate it by up to 20dB The LC display see 8 shows the actual value Adjustment lf you are about to process pre production mate rial which has not yet been normalized nor limited you should set the INPUT GAIN to OGB If your source material has already been mastered and limited it is advisable to adjust negative values for the INPUT GAIN control in order to create new headroom for the proces sing Keep in mind that the SPECTRALIZER adds new harmonics to the source material If the source is a full scale recording the added harmonics will immediately create an overload indi cated by the illuminating Cup LEDs If your source material has a very low level you can use the SPECTRALIZER S INPUT GAIN control to boost the level without making changes to the sound Additionally you drive the SPECTRALIZER into an operational level to work properly Spectralizer FREQUENCY sets the starting frequency of the highpass filter Above this frequency second and third harmonics are being generated The highpass filter can be varied between 1 kHz and 7kHz in steps of 500Hz Mix controls the mix level between the processed and the unprocessed signal The control range is 0 to 100 The Mix encoder is equipped with an alpha dial logic Tuming the en
17. o deserve it my excellent colleagues Hermann Gier Spectralizer Contents Foreword Thanks L 3 Introduction Re synthesizing second and third harmonics separately Improving clarity intelligibi lity and depth without introducing harshness Warm and smooth sounding harmonic re synthesis Easy and intuitive operation SPL digital audio processors are designed in cooperation with Spectral Design of Bremen Germany who are responsible for the DSP programming Concept The SPECTRALIZER is the first digital harmonics processor employing a new process which allows you to re synthesize second and third harmonics separately and with full control over their amplitude The SPECTRALIZER benefits from SPL s expertise in psycho acou stic principles and is the ideal tool to improve the clarity trans parency and intelligibility of any signal in the digital domain A single instrument or vocal gains better penetration within a mix while complete mixes benefit from improved subjective loudness without a measurable change in levels While developing the DSP program a strong emphasis was placed on achieving warm and smooth sounding harmonic re synthesis The digital domain tends to be susceptible to sharp ness at the HF end of the spectrum which made the design of the SPECTRALIZER all the more demanding The result is a tool able to increase brightness and detail without adding harshness or sounding fatiguing
18. rol Elements 14 L 10 Displaying the Channel Difference Error flag Chian Difference No No no error detected YES error detected Setting or erasing the Copy Prohibit flag Copy Prohibit No No flag erased or not set YES flag set Displaying the Original flag Original Y ejs No no Original flag Yes Original Displaying the Emphasis flag Emphasjis No No no emphasis YES with emphasis Selecting a serial port Serial Input RS 23 2 RS 232 interface for update download from PCs or press APPLY 11 Serial Input RS 42 2 RS 422 interface for update download from MACs Selecting a MIDI channel MIDI Channel 01 Depress APPLY to step from MIDI CHANNEL 01 up to MIDI CHANNEL 16 Spectralizer In order to increase operation safety only send the necessary MIDI data to the SPECTRALIZER Unnecessary information might lead to system failure You can use MIDI to create a MIDI fade out if you are working with a digital console that does not provide master inserts The UP and
19. s the digital input directly to the output Signal flow remains uninterrupted even if the mains power is switched off The software bypass function compensates for the inevitable but very short digital domain processing delay so as to avoid Spectralizer the small timing glitches that would otherwise occur when switching the process in and out Up to 99 presets can be stored and changed using a MIDI program change command Display The SPECTRALIZER is equipped with two PPM meters that feature high resolution in the important region immedia tely before O dB Clip LEDs indicate digital clipping while the first LED of each PPM meter functions as a signal present indicator to confirm that a digital signal is present at the input The philosophy behind the digital audio processors is that they are designed to be operated like analogue units there is only one INFO menu but no multi function controls The LCD readout simply shows the current encoder positions and the preset number The encoders are built without clicks or detents so they feel like analogue pots Our DSP platform uses two Motorola 56002 DSPs running at 66MHz This enormous computational power guarantees real time operation where sophisticated DSP algorithms will not be restricted by resource limitations The general concept is that each digital processor should fulfill only one task in the most effective way possible and with a minimum of controls and switches As much as
20. ties or 4 in products with removed or defaced serial numbers or 5 in components or parts or products expressly warranted by another manufacturer SPL agrees through the applicable authorized distributor to repair or replace defects covered by this limited warranty with parts or products of original or improved design at its option in each respect if the defective product is shipped prior to the end of the warranty period to the designated authorized SPL warranty repair facility in the country where purchased or to the SPL factory in Germany in the original packaging or a replacement supplied by SPL with all trans portation costs and full insurance paid each way by the purchaser or owner All remedies and the measure of damages are limited to the above services It is possible that economic loss or injury to person or property may result from the failure of the product however even if SPL has been advised of this possibility this limited warranty does not cover any such consequential or incidental damages Some states or coun tries do not allow the limitations or exclusion of incidental or consequential damages so the above limitation may not apply to you Any and all warranties express or implied arising by law course of dealing course of performance usage of trade or otherwise including but not limited to implied warranties of merchantability and fitness for particular are limited to a period of 1 one year from either
21. ting that the preset is applied In case you want to quit the APPLY mode without applying the new preset simply press STORE To increase operation safety it is impossible to apply presets by simply depressing UP or Down The UP and DOWN status LEDs will not flash indicating that the input is not accepted You have to depress STORE or APPIY for one second in order to activate the UP and Down buttons Depressing STORE and APPLY simultanouesly for about one second gets you into a hardware dialogue called INFO The LC display shows status informations of the digital data stream With UP Down you will jump from one page to the next or previous If a selection is provided use APPLYto select 1 Software version and date Soft wa r e Ve r Lia 0 12 2 Selecting inputs The SPECTRALIZER automatically searches for an input signal If both inputs are connected the AES EBU input will be selected first If you want to select the S P DIF input you have to call up the INFO pages In pu t E O rma AE Si E B U AES EBU input detected or In pu t F O rma t no AE S E BU no AES EBU input detected Press Appty if AES EBU is detected In pu t F O
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