Aphex 320D Compellor Manual de usuario

Owner’s ManualDual Mono/Stereo Automatic Level Controller with Analog & Digital I/OManual P/N 999-4260 • Revision 1 • 09/30/03Copyright 2003 Aphex

320DCompellorPage 10 Page 114.1 UnpackingYour Compellor was packed carefully at the factory in a container designed to protect the unit during shipmen

320DCompellorPage 10 Page 114.4 Power CordThe Compellor uses a standard IEC power cord set. The appropriate mains plug for each country is normally

320DCompellorPage 12 Page 13Installation should be performed only by qualified individuals. It is the installer’s responsibility to insure his person

320DCompellorPage 12 Page 13The output impedance of 65 ohms is optimized for driving long cables and consequently a Compellor can dr

320DCompellorPage 14 Page 155.1A ANALOG INPUTSConnector: 3 pin XLR femaleType: transformerless, servo balanced, RFI fIlteredImpedance: 22K

320DCompellorPage 14 Page 155.6 RATIOCompressor: 1.1:1 to 3:1 program dependentLeveler: 20:1Limiter: >30:15.7 ATTACK TIMESCompressor:

320DCompellorPage 16 Page 176.1 How the Compellor InterfacesBeing an analog processor at the core, the Model 320D contains a high quality

320DCompellorPage 16 Page 17when in Bypass, the Compellor cannot feed the analog input to the digital output. The digital output will simply go dead w

320DCompellorPage 18 Page 197.1 IntroductionThe “Quick Start” guide in the front of this manual is the best way to begin using your

320DCompellorPage 18 Page 19has too wide a dynamic range, it can cause broadcast processors (if the processing does not include the Compellor) to work

Page 2320DCompellorPage 3Fast FinderFast Finder1Contents2Quick Start3Introduction4Installation5Specifications6Using Digital Audio7Operating Instructio

320DCompellorPage 20 Page 21numerous other devices which effectively control the level differences, but none have the transparency of the

320DCompellorPage 20 Page 217.13 Hard Disk RecordingTransferring music to hard disk can be improved using a Model 320D. It is a known fact that CD’s a

320DCompellorPage 22 Page 238.1 Model EvolutionThe model 320D Compellor is a dual channel audio processor capable of being stereo linked. It is essent

320DCompellorPage 22 Page 238.5 Compressor FunctionThe compressor cooperates with the leveler to supply more consistent program level control than pos

320DCompellorPage 24 Page 25ground noise, but below the lowest program signal expected. Typically, a setting of -30dB (at about 9 o’clock) is satisfa

320DCompellorPage 24 Page 258.15 Output ControlThis control allows you to normalize the output level to 0VU after the processing is set up. It will

320DCompellorPage 26320DCompellorPage 278.20 Gain Reduction MeteringWhen the Meter Select is toggled into “G.R.” the bi-color LED meter is programmed

320DCompellorPage 26320DCompellorPage 279. Warranty & Service 9.1 Limited WarrantyPERIODOne year from date of purchaseSCOPEAll defects in workmans

320DCompellorPage 28320DCompellorPage 2910. Appendiceslines are the same. They both need two conductors. What makes a system unbalanced is when

320DCompellorPage 28320DCompellorPage 29is cancelled out by the differential amplifier. Figure 1 illustrates how the hum is induced into both w

Page 2320DCompellorPage 32. Quick Start - Page 63. Introduction - Page 7 3.1 About This Manual 3.2 What Is A Compellor? 3.3 What Does It Do? 3.4 H

320DCompellorPage 30 Page 31There are basically three ways to attack the prob-lem of a ground loop. First is to eliminate it from it

320DCompellorPage 30 Page 31Appendix C: Proper Wiring TechniquesA true balanced line should be used wherever your equipment allows. Use “twisted p

320DCompellorPage 32 Page 33audio line from a low impedance and receive into a high impedance. Generally, a minimum 1: 10 ratio is possible. This is

320DCompellorPage 32 Page 33output circuit. We strongly recommend that you refer to your various equipment manuals to find out what is used in each ca

320DCompellorPage 34 Page 35PART 2: BALANCED OUT to UNBALANCED INIt was mentioned that there are several types of balanced output stages in us

320DCompellorPage 34 Page 35Stereo PlugMale XLRFemale XLRDon’t Connect Pin 3Ground Shield This End OnlyGround Shield This End OnlyTo 207Insert JackTo

320DCompellorPage 36 Page 37Appendix E: About Reference LevelsANALOG SYSTEMSSystems declaring the average reference level are very different than syst

320DCompellorPage 36 Page 37In a world where all audio levels would be monitored by VU meters, this SMPTE standard would make things simple. Sinc

320DCompellorPage 38 Page 39Appendix FDigital–vs–Analog; Peak–vs–RMSHow To Deal With The ConfusionBy Donn Werrbach • 10/03/03The ConfusionThe matter o

320DCompellorPage 38 Page 39room above the maximum PPM indication. By controlling the audio levels to maintain good PPM readings, there can be no p

320DCompellorPage 4 Page 57. Operation - Page18 7.1 Introduction 7.2 Recording 7.3 Mixing 7.4 Mastering 7.5 VIdeo Post Production 7.6 Sound Rein

320DCompellorPage 40 Page 41Digital Audio’s Contributions to the ProblemDeath of a Perfectly Good VU MeterAs superior as the VU monitor is for general

320DCompellorPage 40 Page 41Appendix FMost simply stated, the Compellor will accept an audio input, digital or analog, level it out and

320DCompellorPage 42 Page 43outputs into the codec, the level will then shift and be louder with the analog input. That may give the effect of a fulle

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320DCompellorPage 6 Page 7You can use this quick setup to get a signal through your Compellor right away. Then. you’ll want to go on and read through

320DCompellorPage 6 Page 73.1 About This ManualThis manual reflects the new digital audio features of the Model 320D. It contains much of the materia

320DCompellorPage 8 Page 9circuit. They thought that all audio processors should be noticeable. We had to explain that the unit was in fact wor

320DCompellorPage 8 Page 9 In 1994, Aphex introduced the current Compellor Models 320A and 323A. The model “A” revision signifies the in