Title:
A METHOD AND APPARATUS FOR DETERMINING THE TYPE OF NON-NOISE AUDIO SIGNAL
Document Type and Number:
WIPO Patent Application WO/2009/046658
Kind Code:
A1
Abstract:
A method for determining the type of non-noise audio signal is disclosed, said
method comprises: acquiring feature parameters of non-noise audio signal;
determining initially the type of non-noise audio signal with decision tree
according to said feature parameters; determining the type of said non-noise
audio signal according to linguistic environment of said non-noise audio signal
and initial determination result. Furthermore an apparatus for determining
the type of non-noise audio signal is disclosed, with the method and apparatus,
the type of non-noise audio signal is determined according to its feature parameters
which is independent onencoder algorithm, and independency and portability
of the algorithm is enhanced.
Inventors:
WANG JUN (CN)
WANG ZHE (CN)
WANG ZHE (CN)
Application Number:
PCT/CN2008/072455
Publication Date:
April 16, 2009
Filing Date:
September 23, 2008
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
WANG JUN (CN)
WANG ZHE (CN)
WANG JUN (CN)
WANG ZHE (CN)
International Classes:
G10L25/48
Foreign References:
| CN101256772A | 2008-09-03 | |||
| CN1920947A | 2007-02-28 |
Other References:
"ITU-T G.729: Coding of speech at 8 kbit/s using conjugate-structure algebraic-code-excited linear prediction(CS-ACELP)", TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU, January 2007 (2007-01-01)
Attorney, Agent or Firm:
BEIJING TINGLI PATENT AGENCY (805 806 Jinyu Mansion No.129,Xuanwumen Xidajie, Xicheng, Beijing 1, CN)
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