SYSTEMS AND METHODS FOR AUDIO SIGNAL PROCESSING

A method for signal level matching by an electronic device is described. The method includes capturing a plurality of audio signals from a plurality of microphones. The method also includes determining a difference signal based on an inter microphone subtraction. The difference signal includes multi...

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Bibliographic Details
Main Authors RYU SANG UK, SCHEVCIW ANDRE GUSTAVO P, VISSER ERIK, KIM LAE HOON, SHIN JONGWON, GUO YINYI
Format Patent
LanguageEnglish
Published 07.08.2015
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:A method for signal level matching by an electronic device is described. The method includes capturing a plurality of audio signals from a plurality of microphones. The method also includes determining a difference signal based on an inter microphone subtraction. The difference signal includes multiple harmonics. The method also includes determining whether a harmonicity of the difference signal exceeds a harmonicity threshold. The method also includes preserving the harmonics to determine an envelope. The method further applies the envelope to a noise suppressed signal.
Bibliography:Application Number: IN2014MUMNP2011