Dynamic reduction of loudspeaker distortion based on psychoacoustic masking

There is provided a processor-based method of reducing loudspeaker-induced harmonic distortion in sound generated by a loudspeaker responsive to a first audio signal, the method comprising: attenuating a first band in the first audio signal by an attenuation gain, the first band including a fundamen...

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Bibliographic Details
Main Authors Matan Ben-Asher, Itai Neoran, Meir Shaashua
Format Patent
LanguageEnglish
Published 30.03.2022
Subjects
BASIC ELECTRONIC CIRCUITRY
CONTROL OF AMPLIFICATION
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
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Summary:There is provided a processor-based method of reducing loudspeaker-induced harmonic distortion in sound generated by a loudspeaker responsive to a first audio signal, the method comprising: attenuating a first band in the first audio signal by an attenuation gain, the first band including a fundamental frequency, wherein the attenuating dynamically adjusts the attenuation gain in accordance with, at least, a ratio between: i) an energy of the first band in the first audio signal; and ii) an energy of a second band in the first audio signal, the second band including one or more frequencies that is an integer multiple of the fundamental frequency.
Bibliography:Application Number: GB202116931