ELECTRONIC DEVICE AND METHOD FOR FILTERING ANTI-VOICE INTERFERENCE

An interference filtering method applied to the voice commands of a user of a device includes audio acquisition unit of device taking a first audio signal including user voice from the environment and a second audio signal from an audio output unit of a device creating competing noise. A first backg...

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Bibliographic Details
Main Author LIN, YEN-HSIN
Format Patent
LanguageEnglish
Published 06.12.2018
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:An interference filtering method applied to the voice commands of a user of a device includes audio acquisition unit of device taking a first audio signal including user voice from the environment and a second audio signal from an audio output unit of a device creating competing noise. A first background audio signal is obtained by filtering a speech sound region in first audio signal, and a second background audio signal is obtained by filtering a speech sound region in second audio signal. A time difference T and a sound amplified parameter X are obtained by comparison. A third audio signal is obtained by performing time compensation, amplification, and an inverting operation on second audio signal. First audio signal and third audio signal are synthesized to produce fourth audio signal for feeding to voice recognition unit of the original user device.
Bibliography:Application Number: US201715665965