Invention Grant
US09477895B2 Method and system for detecting events in an acoustic signal subject to cyclo-stationary noise
有权
用于检测受到环形噪声影响的声信号中的事件的方法和系统
- Patent Title: Method and system for detecting events in an acoustic signal subject to cyclo-stationary noise
- Patent Title (中): 用于检测受到环形噪声影响的声信号中的事件的方法和系统
-
Application No.: US14230711Application Date: 2014-03-31
-
Publication No.: US09477895B2Publication Date: 2016-10-25
- Inventor: John R. Hershey , Vamsi K. Potluru , Jonathan Le Roux
- Applicant: Mitsubishi Electric Research Laboratories, Inc.
- Applicant Address: US MA Cambridge
- Assignee: Mitsubishi Electric Research Laboratories, Inc.
- Current Assignee: Mitsubishi Electric Research Laboratories, Inc.
- Current Assignee Address: US MA Cambridge
- Agent Gene Vinokur; James McAleenan; Hironori Tsukamoto
- Main IPC: H04R29/00
- IPC: H04R29/00 ; G06K9/00 ; G06K9/62
Abstract:
A method detects events in an accoustic signal subject to cyclostationary background noise by first segmenting the signal into cycles. Features with a fixed dimension are derived from the cycles, such that the timing of the features is relative to a cycle time. The features are normalized using an estimate of the cyclostationary background noise. Then, after the normalizing, a classifier is applied to the features to detect the events.
Public/Granted literature
- US20150281838A1 Method and System for Detecting Events in an Acoustic Signal Subject to Cyclo-Stationary Noise Public/Granted day:2015-10-01
Information query
