A Simple Audio Compressor/Limiter |
Jamie C. Anderson |
Frequently, when microphones are used to reinforce stage performances, sudden rises in volume overdrive audio equipment causing both signal distortion and audience discomfort. In an instance such as this, a compressor/limiter may be used to control the output signal level, thereby protecting amplifiers, speakers, and ears. This article details a simple circuit that provides quality audio compression/limiting at low cost.
COMPRESSION AND LIMITING
An audio compressor is a device that attenuates a signal once it reaches a set threshold voltage (Vth), in effect turning the gain down automatically when the input signal gets too large. How much a compressor attenuates a signal is defined by ...
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