公开(公告)号：US20220360911A1

公开(公告)日：2022-11-10

申请号：US17760842

申请日：2020-09-16

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Harinath GARUDADRI ,  Ching-Hua LEE ,  Kuan-Lin CHEN ,  Fred HARRIS ,  Bhaskar RAO

IPC: H04R25/00

Abstract: 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.

公开(公告)号：US20250126417A1

公开(公告)日：2025-04-17

申请号：US18695558

申请日：2022-10-31

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Harinath GARUDADRI ,  Alice SOKOLOVA ,  Frederic HARRIS

IPC: H04R25/00

Abstract: In accordance with a method for performing frequency subchannelization, a digital signal is received at an original sampling rate. A plurality of multirate frequency channels is produced by dividing the digital signal into an integer number of multirate frequency channels such that a sampling rate of each of the multirate frequency channels is proportional to a center frequency of the frequency channel. Signal processing is performed on each of the multirate frequency channels. The original sampling rate is reconstructed using the multirate frequency channels.