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[M. Erik Matlock]

Signal Processing Fundamentals: Dynamic Controllers
Compressors, expanders, noise gates and limiters - altering frequency content and amplitude level
By Dennis A. Bohn • March 21, 2019

Dynamic controllers or processors represent a class of signal processing devices used to alter an audio signal based solely upon its frequency content and amplitude level, thus the term “dynamic” since the processing is completely program dependent.

The two most common dynamic effects are compressors and expanders, with limiters and noise gates (or just “gates”) being special cases of these.

The dynamic range of an audio passage is the ratio of the loudest (undistorted) signal to the quietest (just audible) signal, expressed in dB...

Continue reading here: https://www.prosoundweb.com/channels/study_hall/signal_processing_fundamentals_dynamic_controllers/