Audio Compressor/Audio-Band Splitter

Posted on Feb 25, 2013

This 2-band compressor splits the audio into high and low frequencies and allows independent adjustmen

Audio Compressor/Audio-Band Splitter
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t of each. TVo active filters drive the two halves of dual voltage controlled amplifier/rectifier IC. Each section has a dynamic range greater than 100 dB. Compression gain slopes are adjustable from 2 to 25 for both audio bands. iB adjusts the threshold amplitude between the two bands. RK1 and R2/C2 control the compressor attack times (10 kfl and 2, respectively), while the 1.5- resistor in the integrator circuit controls the release line.

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