16Introduction to dynamic range processors
Chapters 17–21 deal with compressors, limiters, gates, expanders, and duckers. All fall into a group called dynamic range processors. The similarities between them are worth discussing as a background to the succeeding chapters.
Dynamic range
Dynamic range is defined as the difference between the softest and loudest sounds a system can accommodate. Our auditory system, digital systems (such as an audio sequencer), and analog systems (such as a loudspeaker) all have their dynamic range. Absolute level measurements are expressed using various dB scales—dBSPL, dBu, dBFS, etc. Dynamic range, like any difference between two level measurements, is expressed in plain dB. The table below shows the dynamic range ...
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