METHOD AND APPARATUS FOR NOISE SUPPRESSION BASED ON INTER-SUBBAND CORRELATION

摘要

A method performs noise suppression in hearing aids. A step of the method involves a first audio signal being split into a plurality of essentially disjunct frequency bands. A further step of the method involves a reference band being selected from the plurality of frequency bands, which reference band has an establishable first component of a speech signal. Another step involves a correlation between the reference band and a first frequency band being ascertained. A further step involves a value that indicates a second component of a speech signal in the first frequency band being ascertained on the basis of the correlation. Another step of the method involves a noise suppression being set in the first frequency band on the basis of the ascertained value.

主权项

1. A method for noise suppression in hearing aids, which comprises the steps of:
a) splitting a first audio signal into a plurality of disjunct frequency bands; b) selecting a reference band from the plurality of disjunct frequency bands, the reference band having an establishable first component of a speech signal; c) ascertaining a correlation between the reference band and a first frequency band; d) ascertaining a value indicating a second component of the speech signal in the first frequency band, on a basis of the correlation; and e) setting the noise suppression in the first frequency band on a basis of an ascertained value.