Broadband wave beam forming method and apparatus

The disclosed forming method for broadband waveform comprises: determining the sub-band signal opposite to the microphone signal, as well as the signal frequency-domain correlation matrix; according to 3D space transmission vector of signal source and former matrix, determining the weight vector for...

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Bibliographic Details
Main Author TAILIANG,SHAO JU
Format Patent
LanguageEnglish
Published 22.11.2006
Subjects
ACOUSTICS
MUSICAL INSTRUMENTS
PHYSICS
SPEECH ANALYSIS OR SYNTHESIS
SPEECH OR AUDIO CODING OR DECODING
SPEECH OR VOICE PROCESSING
SPEECH RECOGNITION
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Summary:The disclosed forming method for broadband waveform comprises: determining the sub-band signal opposite to the microphone signal, as well as the signal frequency-domain correlation matrix; according to 3D space transmission vector of signal source and former matrix, determining the weight vector for every sub-band signal; then deciding the output signal. This invention combines frequency and space domain for speech process, and improves SNR for wide application.
Bibliography:Application Number: CN2005190740