Summary of Contents for Automated Processes, Inc. 529
- Page 1 529 Stereo Compressor OPERATOR’S MANUAL V1.5 W r i t t e n f o r A u t o m a ted P r o c e s se s I n c o r p o ra t e d...
- Page 2 8301 Patuxent Range Road Jessup, MD 20794 USA 301-776-7879 http://www.apiaudio.com...
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Page 3: Table Of Contents
Table of Contents Introduction ..................2 Features ....................2 Overview ..................3 Compressor Controls ................ 3 THRESHold ..................... 3 RATIO ..................... 4 ATTACK ....................4 RELEASE ....................4 MAKE UP GAIN ..................4 Compressor TYPE ................5 NEW (Feed-Forward) ................5 OLD (Feed-back) .................. -
Page 4: Introduction
Based on the unprecedented success of the 2500, the 529 takes many of the features and controls from API's famous stereo bus compressor and puts them into the first dual slot 500 series module from API. -
Page 5: Overview
Overview The 529 Compressor provides a comprehensive suite of controls: THRESHold: The level at which compression begins (+10dB to -20dB) Threshold LED: Indicates when the input audio crosses the selected THRESHold level RATIO: The amount of compression applied after threshold (1.5:1 to ∞... -
Page 6: Ratio
Continuously variable between .05 and 4 seconds (sec) Detented rotary pot for easy recall MAKE UP GAIN GAIN: Manual make gain The 529 Compressor provides (output level) automatic and manual make Continuously variable up gain functions. between 0dB and +24dB ... -
Page 7: Compressor Type
Compressor TYPE The 529 Compressor can be set to operate in two circuit topologies that determine where the signal that feeds the RMS detector comes from: OLD: Feed-Back topology: The RMS detector receives the signal from after the VCA ... -
Page 8: Compression Knee
OLD: Engages feed-back topology (green LED) Compression KNEE The KNEE function determines the shape of the 529 Compressor’s response curve at the onset of compression. The 529 Compressor has three (3) KNEE settings that control how the compressor transitions into compression: ... -
Page 9: Medium Knee Compression
MEDIUM KNEE Compression MEDium: Slightly rounded response curve Moderate onset of compression (firm, but less sudden transition to set ratio) Less aggressive and but still noticeable Yellow LED SOFT KNEE Compression SOFT: Rounded response curve Gradual onset of compression (fade-in up to the set ratio) ... -
Page 10: Thrust
THRUST NORMal NORMal: Flat: There is no filter in the path to the RMS detector and the 529 compresses like most units on the market today. 5 2 9 S t e r e o C o m p r e s s o r... -
Page 11: Thrust Medium
® THRUST MEDium MEDium: A slight attenuation of the low frequencies and a slight boost in the high frequencies, with a flat mid-range are applied to the signal feeding the RMS detector. This reduces the low fre- quencies from pumping the compressor as much and increases the sensitivity of the RMS detector to the higher frequencies, affecting the higher frequency peaks of the signal. -
Page 12: Compressor Bypass (Out)
Audio continues to pass through the 529 electronics. NOTE: When the 529 is powered off, it is held in the BYPass state. When the compressor is not in the BYPass state (yellow BYP LED not illuminated), the 529 behaves normally. -
Page 13: Gr (Gain Reduction) Meter
GR (Gain Reduction) Meter A 10-segment LED gain reduction (GR) meter is provided to indicate the amount of compres- sion being applied. When no gain reduction is being applied, none of the LED’s are lit on the Gain Reduction meter (GR). When compression occurs, the corresponding LED’s illuminate to indicate the amount of gain reduction. - Page 14 8301 Patuxent Range Road Jessup, MD 20794 USA 301-776-7879 http://www.apiaudio.com...
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