Patent ID: 7991171

Claim:
A method for processing an audio signal comprising: separating the audio signal into multiple audio frequency bands, each audio frequency band having a corresponding primary band frequency, at least some of the primary band frequencies being harmonics of other primary band frequencies; processing the audio signal in each audio frequency band with an associated audio processing technique; determining an initial gain adjustment factor for each primary band frequency, the initial gain adjustment factor for each primary band frequency being determined from the audio processing technique as applied to the audio signal in the corresponding audio frequency band; identifying a set of initial gain adjustment factors for each primary band frequency that is a harmonic of at least one other primary band frequency, the set of initial gain adjustment factors including at least: the initial gain adjustment factor corresponding to the primary band frequency, and, the initial gain adjustment factor corresponding to the at least one other primary band frequency; selecting a final gain adjustment factor for each audio frequency band from the corresponding set of initial gain adjustment factors; applying each final gain adjustment factor to the corresponding audio frequency band to produce a processed and gain adjusted audio signal for each audio frequency band; and mixing the processed and gain adjusted audio signals from each audio frequency band to produce a final processed audio signal.