AUDIO_COMPRESSOR_AUDIO_BAND_SPLITTER

Published:2009/7/9 22:31:00 Author:May | From:SeekIC

This 2-band compressor splits the audio into high and low frequencies and allows independent adjustment of each. Two active filters drive the two halves of dual voltage controlled amplifier/rectifter IC. Each section has a dynamic range greater than 100 dB. Compression gain slopes are adjustable from 2 to 25 for both audio bands. RB adjusts the threshold amplitude between the two bands. RK1 and R2/C2 control the compressor attack times (10 kΩ and 2 μF, respectively), while the 1.5-MΩ) resistor in the integrator circuit controls the release line.



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