公开(公告)号：US20180308503A1

公开(公告)日：2018-10-25

申请号：US15957829

申请日：2018-04-19

Applicant: SYNAPTICS INCORPORATED

Inventor： Saeed Mosayyebpour Kaskari ,  Francesco Nesta ,  Trausti Thormundsson ,  Thomas Aaron Gulliver

IPC: G10L21/0232 ,  G10L21/038

CPC classification number: G10L21/0232 ,  G10L21/038 ,  G10L2021/02082

Abstract: Systems and methods for processing an audio signal include an audio input operable to receive an input signal comprising a time-domain, single-channel audio signal, a subband analysis block operable to transform the input signal to a frequency domain input signal comprising a plurality of k-spaced under-sampled subband signals, a reverberation reduction block operable to reduce reverberation effect, including late reverberation, in the plurality of k-spaced under-sampled subband signals, a noise reduction block operable to reduce background noise from the plurality of k-spaced under-sampled subband signals, and a subband synthesis block operable to transform the subband signals to the time-domain, thereby producing an enhanced output signal.

公开(公告)号：US11373667B2

公开(公告)日：2022-06-28

申请号：US15957829

申请日：2018-04-19

Applicant: SYNAPTICS INCORPORATED

Inventor： Saeed Mosayyebpour Kaskari ,  Francesco Nesta ,  Trausti Thormundsson ,  Thomas Aaron Gulliver

IPC: H04B15/00 ,  G10L21/0232 ,  G10L21/038 ,  G10L21/0208 ,  G10L25/18 ,  G10L21/00

Abstract: Systems and methods for processing an audio signal include an audio input operable to receive an input signal comprising a time-domain, single-channel audio signal, a subband analysis block operable to transform the input signal to a frequency domain input signal comprising a plurality of k-spaced under-sampled subband signals, a reverberation reduction block operable to reduce reverberation effect, including late reverberation, in the plurality of k-spaced under-sampled subband signals, a noise reduction block operable to reduce background noise from the plurality of k-spaced under-sampled subband signals, and a subband synthesis block operable to transform the subband signals to the time-domain, thereby producing an enhanced output signal.