MITIGATING ACOUSTIC FEEDBACK IN HEARING AIDS WITH FREQUENCY WARPING BY ALL-PASS NETWORKS

A method and system or device such as a hearing aid are provided for processing audio signals. In accordance with the method, an audio signal is received and divided into a plurality of frequency sub-bands. For each of the frequency sub-band signals, the signal is further divided into overlapping te...

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Bibliographic Details
Main Authors LEE, Ching-Hua, HARRIS, Fred, CHEN, Kuan-Lin, GARUDADRI, Harinath, RAO, Bhaskar
Format Patent
LanguageEnglish
Published 10.11.2022
Subjects
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
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Summary:A method and system or device such as a hearing aid are provided for processing audio signals. In accordance with the method, an audio signal is received and divided into a plurality of frequency sub-bands. For each of the frequency sub-band signals, the signal is further divided into overlapping temporal frames. Each of the temporal frames are windowed. Frequency warping is performed on each of the windowed frames. Overlap-and-add is performed on the frequency warped frames. The frequency warped sub-bands are combined into a full band to provide a frequency warped signal.
Bibliography:Application Number: US202017760842