公开(公告)号：US11443756B2

公开(公告)日：2022-09-13

申请号：US16934801

申请日：2020-07-21

Applicant: Google LLC

Inventor： Simon J. Godsill ,  Herbert Buchner ,  Jan Skoglund

IPC: G10L15/20 ,  H04M9/08 ,  G10L21/0208 ,  H04R3/00 ,  G10L21/0216 ,  G10L21/0272

Abstract: Provided are methods and systems for enhancing speech when corrupted by transient noise (e.g., keyboard typing noise). The methods and systems utilize a reference microphone input signal for the transient noise in a signal restoration process used for the voice part of the signal. A robust Bayesian statistical model is used to regress the voice microphone on the reference microphone, which allows for direct inference about the desired voice signal while marginalizing the unwanted power spectral values of the voice and transient noise. Also provided is a straightforward and efficient Expectation-maximization (EM) procedure for fast enhancement of the corrupted signal. The methods and systems are designed to operate easily in real-time on standard hardware, and have very low latency so that there is no irritating delay in speaker response.

公开(公告)号：US20200349964A1

公开(公告)日：2020-11-05

申请号：US16934801

申请日：2020-07-21

Applicant: Google LLC

Inventor： Simon J. Godsill ,  Herbert Buchner ,  Jan Skoglund

IPC: G10L21/0208 ,  H04R3/00 ,  G10L21/0216 ,  G10L21/0272

Abstract: Provided are methods and systems for enhancing speech when corrupted by transient noise (e.g., keyboard typing noise). The methods and systems utilize a reference microphone input signal for the transient noise in a signal restoration process used for the voice part of the signal. A robust Bayesian statistical model is used to regress the voice microphone on the reference microphone, which allows for direct inference about the desired voice signal while marginalizing the unwanted power spectral values of the voice and transient noise. Also provided is a straightforward and efficient Expectation-maximization (EM) procedure far fast enhancement of the corrupted signal. The methods and systems are designed to operate easily in real-time on standard hardware, and have very low latency so that there is no irritating delay in speaker response.

公开(公告)号：US10755726B2

公开(公告)日：2020-08-25

申请号：US14591418

申请日：2015-01-07

Applicant: Google LLC

Inventor： Simon J. Godsill ,  Herbert Buchner ,  Jan Skoglund

IPC: G10L15/20 ,  G10L21/0208 ,  H04R3/00 ,  G10L21/0216 ,  G10L21/0272

Abstract: Provided are methods and systems for enhancing speech when corrupted by transient noise (e.g., keyboard typing noise). The methods and systems utilize a reference microphone input signal for the transient noise in a signal restoration process used for the voice part of the signal. A robust Bayesian statistical model is used to regress the voice microphone on the reference microphone, which allows for direct inference about the desired voice signal while marginalizing the unwanted power spectral values of the voice and transient noise. Also provided is a straightforward and efficient Expectation-maximization (EM) procedure for fast enhancement of the corrupted signal. The methods and systems are designed to operate easily in real-time on standard hardware, and have very low latency so that there is no irritating delay in speaker response.