Patent Document ID: 9762198
Application ID: 14787854
Patent Flag: 1

Claim One:
1. A method for dynamically adjusting thresholds of a compressor responsive to an input audio signal, the method comprising: receiving an input audio signal having a plurality of frequency band components; determining a plurality of time-varying thresholds according to the plurality of frequency band components, each time-varying threshold corresponding to a respective frequency band component; performing, by a compressor, on each frequency band component, a compression operation having the corresponding time-varying threshold to produce a plurality of gains, each gain corresponding to a respective frequency band component; applying each gain to a delayed corresponding frequency band component to produce a plurality of processed frequency band components; summing the processed frequency band components to produce an output signal; determining a time-varying estimate of a perceived spectrum of the output signal; determining a time-varying estimate of a distortion spectrum induced by the perceived spectrum estimate; predicting an audibility measure of the distortion spectrum estimate in the presence of the perceived spectrum estimate; and adjusting one or more of the time-varying thresholds according to the predicted audibility measure.