Patent ID: 9437213
Filing Date: 2016-09-06
CPC Classification: G10L

Claim Text:
1. A method of discriminating relative to a voice signal, the method comprising: receiving, via one or more audible sensors, an audible signal including a target voice signal; converting the audible signal into a corresponding plurality of wideband time-frequency units, wherein the time dimension of each time-frequency unit includes at least one of a plurality of sequential intervals, and wherein the frequency dimension of each time-frequency unit includes at least one of a plurality of wide sub-bands; calculating one or more characterizing metrics from the plurality of wideband time-frequency units; calculating a gain function from one or more characterizing metrics calculated from the plurality of wideband time-frequency units; converting the audible signal into a corresponding plurality of narrowband time-frequency units; applying the gain function, calculated from the plurality of wideband time-frequency units, to the plurality of narrowband time-frequency units to produce a corresponding plurality of narrowband gain-corrected time-frequency units; converting the plurality of narrowband gain-corrected time-frequency units into a corrected audible signal, wherein the corrected audible signal includes an improved target voice signal relative to the received audible signal; and outputting the corrected audible signal through an output device.