Symetrix 628 Digital Voice Processor User Manual Download Page 1 | Manualshive

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628 Digital Voice Processor

User

s Guide

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Summary of Contents for 628 Digital Voice Processor

Page 1: ...628 Digital Voice Processor User s Guide 628...

Page 2: ...B June 30 1998 Symetrix part number 53628 0B00 Subject to change at our whim and fancy without notice 1998 Symetrix Inc All right reserved Symetrix is a registered trademark of Symetrix Inc Mention o...

Page 3: ...frequencysections The equalizer bands and controls remain the same as onthe528E exceptyounowreadFREQUENCY BANDWIDTHandCUTorBOOSTonthenumeric display TheOUTPUTLEVELpottweakstheoutputgain andtheLEDheadr...

Page 4: ...on the 628 s chassis Boldface Strong emphasis Power source Electrical power requirements for US and Canadian models are 117 VAC Nominal 105 to 125 VAC 60 Hz 20 Watts maximum UL and C UL listing appli...

Page 5: ...plugonthepowercordisnotcorrectforyourmainsreceptacle STOP Callthe Symetrixdealer oryourcountry sdistributor whosuppliedyourunitandtradethe 628foraunitbuiltforyourmainsvoltage If everything looks consi...

Page 6: ...sleeve plug into the TRS tip ring sleeve input jack Use the GAIN control to adjust the line level input signal Caution The 628 accepts analog inputs only There is no provision for a digital input sign...

Page 7: ...equipment there is no 0 dBm reference point A signal passing through the 628 at a level of 4 dBfs dB full scale is 4 dB below clipping NOT at 4dBu The 628 clips at 22 dBu This means that the 4 dBfs s...

Page 8: ...l world things aren t always this neat Some consoles only allow microphone level 50 dBu inputs for the channels providing microphone functions such as speaker muting or on air light switching Please c...

Page 9: ...should display 1 indicating that the command from he RC 1 was received and preset 1 was loaded The LEDs on the RC 1 do not provided positive confirmation of which preset is selected on the 628 They si...

Page 10: ...tton the MASTER display will show the flashing letters Sto Store Push the SAVE button again and the 628 will copy the selected preset program to the new location Until you press the SAVE button the se...

Page 11: ...sample rates When the center frequency which you want to cut or boost displays in the window stop turning the FREQUENCY knob The display will flash indicating that you have made a change in fre quenc...

Page 12: ...urning the knob further will change the cut or boost and the new value will show in the LCD display Push the SAVE button once and the MASTER display will show the flashing letters Sto Store Push the S...

Page 13: ...isplay Save the change by pressing the SAVE button The MASTER display will show the flashing letters Sto Store Push the SAVE button again and the 628 will record the change to the preset program This...

Page 14: ...f a higher ratio 10 1 is used a 1 dBu drop in the input signal will result in a 10 dBu drop at the 628 s output This resembles the function of a gate which turns off the signal when it falls below the...

Page 15: ...resets you can disable the 628 s front panel controls After you lock out the front panel controls the announcers can switch between presets but when they turn other knobs the 628 ignores them Front Pa...

Page 16: ...the dynamic range of signals below a threshold Limiters can be thought of as very high ratio compressors and gates can be thought of as very high ratio expanders In addition to their roles as remedial...

Page 17: ...or limiter we could increase the amount of change at the lower end of the dynamic range with a downward expander or gate In practice we throw away some of the low level audio down near the noise floor...

Page 18: ...u want to stop Release timing is best expressed as decibels of compression per second A release time of 10 dB Sec allows the compressor to release compression at a rate of 10 decibels every second The...

Page 19: ...se it operates dynamically a de esser removes only sounds that are disproportionately loud and only those falling within the selected control range De essers include knobs that allow the operator to c...

Page 20: ...oo low using the equalizer for boost may increase noise to unacceptable levels If your source signal levels are too low increase the preamp gain if you use the microphone input You may need to raise t...

Page 21: ...ncy Description 75 200Hz Rumble fullness 200 300Hz Bass bigness 400 600Hz Chesty warmth 600 1000Hz Volume 2 4kHz Clarity 3 5kHz Nasal yell presence 5 8kHz Enunciation intimacy 10kHzup Air mouth noises...

Page 22: ...tch in the proper position It must reflect the sample rate of the digital recorder workstation etc 8 Do you have the digital output of the 628 connected to a digital input Hum or buzz in the audio 1 V...

Page 23: ...trying to modify one of the factory presets Presets 120 127 are read only you must move the program to another location before you can modify it Check Chapter 3 for instruction on moving presets to ne...

Page 24: ...The DSP is not responding to the host E22 DSP host vector error The DSP is not answering a host command vector BAT Your memory backup battery is failing Oh T Skiptothere initializationprocedurebelow...

Page 25: ...Express We will return your repair using premium freight at no additional charge If you return you unit by parcel post or UPS surface please don t ask us to return it to you via overnight or second d...

Page 26: ...e or merchantability Symetrix s warranty obligation and buyer s remedies hereunder are SOLELY and exclusively as stated herein This Symetrix product is designed and manufactured for use in professiona...

Page 27: ...Bands 20 Hz to 500 Hz 160 Hz to 6300 Hz 680 Hz to 20 kHz Bandwidth Range 3 to 4 Octaves Maximum Cut Boost 15 dB Analog Output Type Balanced Transformerless Output Level at 0dBFS 22 dBu Balanced Jumper...

Page 28: ...ntrol operating through the range of 1 1 to 15 1 A front panel threshold control shall have a range of 0 dBFS to 60 dBFS The compressor release time shall be adjustable in the range from 250 milliseco...

Page 29: ...e settings also work well for AM talk show hosts Preset126 SusieSweetheart On The Airhereoften Features light expander operation medium processing in the compressor The EQ is set for a bass boost and...

Page 30: ...id Band Mid Band High Band High Band Frequency Frequency Threshold Threshold Threshold Threshold Frequency Frequency Frequency Frequency Frequency Frequency Threshold Threshold Ratio Ratio Ratio Ratio...

Page 31: ...d the chassis XLR connectors find black pin jumpers J6 and J7 or J10 and J11 depending on which XLR output you want to convert to microphone level 5 Move both jumpers next to the output connector whic...

Page 32: ...U11 C31 C25 D1 C32 R41 BP14 C35 BP18 R43 J10 J9 J7 J5 J4 J12 G 1 3 2 G 1 3 2 J11 J13 U24 D3 C66 C61 L14 R82 R81 C65 R83 C64 R79 BP28 R85 C63 R78 R70 J8 R77 R71 U19 R68 C58 L10 C39 L9 J6 C50 R59 R60 R...

Page 33: ...ture provided on the RC 1 If you accidentally hit one of the buttons you will accidentally change the processing preset on the 628 The RC 1 connects to the Symetrix 628 with a 25 foot 7 pin DIN cable...

Page 34: ...628 in its permanent position you may connect the RC 1 Position the RC 1 Remote Control in a convenient but secure location Route the 25 foot cable between the two devices Secure the cable so that it...

Page 35: ...to pin 2 etc Symetrix does not offer extension cables or cables of different lengths Troubleshooting The LEDs on the RC 1 do not light after a button is pushed 1 The RC 1 is not receiving power Are th...

Page 36: ...PLUG TIP HIGH RING LOW SLEEVE GROUND MALE TRS PLUG TIP HIGH RING NOT USED SLEEVE GROUND LOW MALE TS PLUG TIP HIGH SLEEVE GROUND LOW MALE RCA PLUG TIP HIGH SLEEVE GROUND LOW MALE TS PLUG TIP HIGH SLEE...

Page 37: ...ssion standard Part 1 Residential commercial and light industry EN 50082 1 Electromagnetic compatibility Generic immunity standard Part 1 Residential commercial and light industry EN 55022 Limits and...

Page 38: ...628 36 Symetrix Inc 14926 35th Ave West Lynnwood WA 98037 2303 USA Tel 425 787 3222 Fax 425 787 3211 Website http www symetrixaudio com Email symetrix symetrixaudio com...

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