Audio loudness control system

Details Audio loudness control system Audio loudness control system

H - Electricity

03

G

330/104, 179/2,

H03G 3/20 (2006.01)

Patent

CA 1199080

AUDIO LOUDNESS CONTROL SYSTEM Abstract of the Disclosure An audio loudness control system for processing a broad dynamic range of audio input signals (e.g. 70 to 100 dB) comprises a gain-controlled amplifier, a feed forward control signal generator having an audio signal input that develops a feed forward gain control signal having an amplitude representative of long-term input excursions of the audio signal above a predetermined loudness threshold, a feedback control signal generator having an input from the audio output of the amplifier that develops a feedback gain control signal having an amplitude representative of transient output signal excursions above the loudness threshold, and a selector gate that selects the gain control signal of instantaneously higher effective magnitude and applies the selected gain control signal to the gain control input of the amplifier.

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