AUDIO CODING SYSTEM USING CHARACTERISTICS OF A DECODED SIGNAL TO ADAPT SYNTHESIZED SPECTRAL COMPONENTS

A receiver in an audio coding system receives a signal conveying frequency subband signals representing an audio signal. The subband signals are examined to assess one or more characteristics of the audio signal. Spectral components are synthesized having the assessed characteristics. The synthesize...

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Bibliographic Details
Main Authors FELLERS MATTHEW CONRAD, DAVIDSON GRANT ALLEN, TRUMAN MICHAEL MEAD, VINTON MARK STUART
Format Patent
LanguageEnglish
Korean
Published 29.07.2010
Subjects
ACOUSTICS
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRICITY
MUSICAL INSTRUMENTS
PHYSICS
SPEECH ANALYSIS OR SYNTHESIS
SPEECH OR AUDIO CODING OR DECODING
SPEECH OR VOICE PROCESSING
SPEECH RECOGNITION
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Summary:A receiver in an audio coding system receives a signal conveying frequency subband signals representing an audio signal. The subband signals are examined to assess one or more characteristics of the audio signal. Spectral components are synthesized having the assessed characteristics. The synthesized spectral components are integrated with the subband signals and passed through a synthesis filterbank to generate an output signal. In one implementation, the assessed characteristic is temporal shape and noise-like spectral components are synthesized having the temporal shape of the audio signal.
Bibliography:Application Number: KR20107013899