Invention Grant
US09123350B2 Method and system for extracting audio features from an encoded bitstream for audio classification
有权
用于从用于音频分类的编码比特流中提取音频特征的方法和系统
- Patent Title: Method and system for extracting audio features from an encoded bitstream for audio classification
- Patent Title (中): 用于从用于音频分类的编码比特流中提取音频特征的方法和系统
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Application No.: US12097198Application Date: 2005-12-14
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Publication No.: US09123350B2Publication Date: 2015-09-01
- Inventor: Ying Zhao
- Applicant: Ying Zhao
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Christensen Fonder P.A.
- International Application: PCT/SG2005/000419 WO 20051214
- International Announcement: WO2007/070007 WO 20070621
- Main IPC: G10L21/00
- IPC: G10L21/00 ; G10L25/00 ; G10L25/78 ; G10L25/18 ; G10L25/51 ; G10L15/02 ; G10L19/022
Abstract:
A method and system for extracting audio features from an encoded bitstream for audio classification. The method comprises partially decoding the encoded bitstream; obtaining uniform window block size spectral coefficients of the encoded bitstream; and extracting audio features based on the uniform window block spectral coefficients.
Public/Granted literature
- US20090254352A1 METHOD AND SYSTEM FOR EXTRACTING AUDIO FEATURES FROM AN ENCODED BITSTREAM FOR AUDIO CLASSIFICATION Public/Granted day:2009-10-08
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