Patent ID: 9538286
Date: 2017-01-03
CPC Classifications: G10L,H04R

Claim:
1. A spatial adaptation system comprising: a frame power module configured to determine a determined frame power based on at least a converted front microphone signal; a posterior signal to noise ratio module configured to determine a determined posterior signal to noise ratio that represents a signal to noise ratio of a noise source based on said converted front microphone signal, wherein the determined posterior signal to noise ratio is a temporal feature; an inference and weight module configured to receive a plurality of inputs based on two or more input signals captured by at least two microphones, said plurality of inputs including the determined frame power and the determined posterior signal to noise ratio, said inference and weight module configured to determine one or more noise target weights based on at least said determined posterior signal to noise ratio; a noise magnitude ratio update module coupled with said inference and weight module, said noise magnitude ratio update module configured to receive said one or more noise target weights from said inference and weight module and configured to determine an updated noise target value based on said one or more noise target weights from said inference and weight module, said updated noise target value used to adapt a power level of at least one of said two or more input signals captured by said at least two microphones; and a spatial feature module coupled with said inference and weight module, said spatial feature module to determine one or more spatial features based on said two or more input signals, wherein said inference and weight module determines one or more noise target weights based on said one or more spatial features determined by said spatial feature module.