Patent Number: 7,103,541

Title: Microphone array signal enhancement using mixture models

Abstract: A system and method facilitating signal enhancement utilizing mixture models is provided. The invention includes a signal enhancement adaptive system having a speech model, a noise model and a plurality of adaptive filter parameters. The signal enhancement adaptive system employs probabilistic modeling to perform signal enhancement of a plurality of windowed frequency transformed input signals received, for example, for an array of microphones. The signal enhancement adaptive system incorporates information about the statistical structure of speech signals. The signal enhancement adaptive system can be embedded in an overall enhancement system which also includes components of signal windowing and frequency transformation.

Inventors: Attias; Hagai (Seattle, WA), Deng; Li (Sammamish, WA)

Assignee: Microsoft Corporation

International Classification: G10L 21/02 (20060101)

Expiration Date: 9/05/02018