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Audio Compression Amplifier /AGC - ElectroSchematics.com
https://www.electroschematics.com/audio-compressor-agc/
This is an audio compressor/AGC (automatic gain control) with an astonishing 75db input voltage range. A P-Channel JFET is used as a variable …
OLA5 Opto Compressor with Vintage Output & Discrete Op-Amp
https://bignoiseradio.com/product/ola5-opto-compressor-by-diyre-500-series-audio-module/
Fully Assembled OLA5 Opto Compressor by DIYRE with Vintage Output & 2520 DOA. There is nothing like classic opto compressor OLA5 to get …
An Audio Compressor/Peak Limiter Circuit
http://leachlegacy.ece.gatech.edu/ece4435/sp08/sp08dp06.pdf
of op amps A2 and A3. The circuit is not to be connected to the VCA until it is operational. The first step is to assemble the precision recti fier circuit consisting of A2, A3, D1, D2,and resistors R4, R5, R6, R7,andR9.OmitD3, R8, and the circuit to the left of A3.Theleft node of resistor R9 should connect to the output of A3. The specifications are:
Audio Compressor Circuit Based LF357 - CircuitsZone.com
https://circuitszone.com/audio-compressor-circuit-based-lf357/
The audio compressor circuit has an extended frequency response from 7 Hz to 67 kHz nominally, thanks to the use of a fast opamp, the type LF357 (IC1), which is set up here to provide an amplification of about 471 [ (R6+R5)/R5]. Capacitor C3 blocks the direct voltage at the inverting input of IC1, and with R5 sets the low frequency roll-off the opamp alone at about 16 …
Analog Compressor Design - Matt Rottinghaus
https://mattrottinghaus.com/2017/07/20/analog-compressor-design/
In audio, a compressor is a device that reduces the dynamic range of audio, e.g. compresses it. This often has the effect of making the overall audio seem louder. While this is the end result, a compressor works by detecting if an incoming signal is exceeding a volume threshold, and while it exceeds this threshold the device reduces the gain by a specified ratio.
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