SIMULTANEOUS DECONVOLUTION OF LOUDSPEAKER-ROOM IMPULSE RESPONSES WITH LINEARLY-OPTIMAL TECHNIQUES

    公开(公告)号:US20230052010A1

    公开(公告)日:2023-02-16

    申请号:US17584181

    申请日:2022-01-25

    Inventor: Sunil Bharitkar

    Abstract: One embodiment provides a method comprising determining stimuli for simultaneously exciting a plurality of speakers within a spatial area. The method further comprises simultaneously exciting the plurality of speakers by providing the stimuli to the plurality of speakers at the same time for reproduction. The method further comprises recording, during the reproduction, one or more measurements of sound arriving at one or more microphones within the spatial area. The method further comprises simultaneously deconvolving a plurality of impulse responses of the plurality of speakers based on the stimuli and the one or more measurements.

    PERCEPTUAL BASS EXTENSION WITH LOUDNESS MANAGEMENT AND ARTIFICIAL INTELLIGENCE (AI)

    公开(公告)号:US20230029841A1

    公开(公告)日:2023-02-02

    申请号:US17689744

    申请日:2022-03-08

    Abstract: One embodiment provides a computer-implemented method that includes implementing a customizable compressor for at least one sidechain processing associated with a loudspeaker. Machine learning is applied to automatically tune one or more parameters of the at least one sidechain processing. One or more channels are extracted, including a low-frequency effects (LFE) channel, for nonlinear signal synthesis. A proportional power-sum-based mix-in of an LFE sidechain channel is applied into a non-LFE sidechain. The LFE sidechain channel is maintained within a specified threshold of being level, before and after nonlinear signal synthesis.

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