Patent ID: 8761406
Filing Date: 2014-06-24
Classification: G10L,H03G

Abstract:
1. An audio signal processing device comprising: a microphone configured to collect noise; analyzing means configured to analyze a first audio signal collected by said microphone and to identify a particular frequency band in which noise is distributed and determine a level of the noise in the first audio signal within the particular frequency band; signal processing means configured to perform signal processing, based on analysis results of said analyzing means, on a second audio signal to be reproduced, and further configured to employ at least one parameter for said signal processing that is determined based at least in part upon a classification of the noise into one of a plurality of defined categories; noise-canceling signal forming means configured to form a noise-canceling signal from the first audio signal collected by said microphone; and adding means configured to add the noise-canceling signal from said noise-canceling signal forming means to an output signal from said signal processing means.