hi-fi dynamic range compressor

Several designs for dynamic range compressors have previously been published in Elektor, but this is the first design that provides truly high-fidelity performance. It can accept nominal signal levels from 600 µ V to 2.2V and is thus suitable for use with microphones as well as higher output circuits such as audio preamps. The harmonic distortion is below 0.3% and the decay of the compressor can be adjusted to suit different types of programme material.