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公开(公告)号：US11842122B2
公开(公告)日：2023-12-12
申请号：US17898358
申请日：2022-08-29
发明人： Jeroen Koppens , Jeffrey Riedmiller , Kristofer Kjoerling , Alexander Stahlmann , Holger Hoerich , Alan J. Seefeldt
IPC分类号： G06F3/16 , G10L19/16 , H03G7/00 , H03G9/00 , H03G9/02 , H04S7/00 , H03G9/18 , H03G3/30 , H03G9/12 , H04S1/00 , G10L21/0324
CPC分类号： G06F3/165 , G10L19/167 , G10L21/0324 , H03G3/3005 , H03G3/3089 , H03G7/002 , H03G7/007 , H03G9/005 , H03G9/025 , H03G9/12 , H03G9/18 , H04S1/00 , H04S7/30 , H04S2400/13
摘要： In an audio encoder, for audio content received in a source audio format, default gains are generated based on a default dynamic range compression (DRC) curve, and non-default gains are generated for a non-default gain profile. Based on the default gains and non-default gains, differential gains are generated. An audio signal comprising the audio content, the default DRC curve, and differential gains is generated. In an audio decoder, the default DRC curve and the differential gains are identified from the audio signal. Default gains are re-generated based on the default DRC curve. Based on the combination of the re-generated default gains and the differential gains, operations are performed on the audio content extracted from the audio signal.
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公开(公告)号：US11707633B2
公开(公告)日：2023-07-25
申请号：US17669738
申请日：2022-02-11
申请人： Physio-Control, Inc.
发明人： Robert Eugene Smith
CPC分类号： A61N1/3993 , A61N1/39 , A61N1/3904 , H03G9/005 , H03G9/02 , G10L19/02 , G10L21/02 , G10L21/0332 , H03G3/24 , H03G3/32 , H03G9/025 , H04R2430/01
摘要： A system capable of self-adjusting both sound level and spectral content to improve audibility and intelligibility of electronic device audible cues. Audible cues are stored as sound files. Ambient noise is detected, and the output of the audible cues is altered based on the ambient noise. Various embodiments include processed sound files that are more robust in noisy environments.
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公开(公告)号：US20230113561A1
公开(公告)日：2023-04-13
申请号：US17910017
申请日：2021-03-12
摘要： A method for loudness equalization is provided that includes receiving input loudness data at an audio processing system. Converting gain data of the input loudness data to a linear scale at the audio processing system. Determining a reciprocal of a gain-linear loudness value as a function of the converted gain data using the audio processing system. Determining a compression ratio using the audio processing system. Performing temporal smoothing and look ahead processing using the audio processing system. Outputting gain data as a function of the temporal smoothing and look ahead processing using the audio processing system.
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公开(公告)号：US11616482B2
公开(公告)日：2023-03-28
申请号：US17255350
申请日：2019-06-20
摘要： In some embodiments, a method for performing at least one of enhancement, decoding, or rendering of a multichannel audio signal in response to compression feedback or feedback from a smart amplifier. For example, the compression feedback may be indicative of amount of compression applied to each of multiple frequency bands, of the audio signal or an enhanced audio signal generated in response thereto. The enhancement (e.g., bass enhancement) may include dynamic routing of audio content of the input audio signal between channels of an enhanced audio signal generated in response thereto. The enhancement and compression may be performed on a per speaker class basis. Other aspects are systems (e.g., programmed processors) and devices (e.g., devices having physically-limited bass reproduction capabilities, such as, for example, a notebook or laptop computer, tablet, soundbar, mobile phone, or other device with small speakers) configured to perform any embodiment of the method.
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公开(公告)号：US11323087B2
公开(公告)日：2022-05-03
申请号：US17081059
申请日：2020-10-27
发明人： Nicholas R. Clark , Natalia Delgado
摘要： Disclosed is a method and apparatus for determining one or more operation parameters for a dynamic range compression (DRC) system. The method comprises obtaining, as an input, a parameter indicative of a hearing ability of a user, the parameter relating to a first difference in sound intensity between a maskee at a first frequency and a masker at a second frequency, determining a target value for the parameter, and determining the one or more operation parameters such that a second difference in sound intensity after sound intensity modification by the DRC (between sound intensity of the maskee of the masker) corresponds to the target value for the parameter. The operation parameters are determined such that a dependence of the second difference in sound intensity on the sound intensity of the maskee is minimized for a given range of sound intensities of the maskee.
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公开(公告)号：US11247062B2
公开(公告)日：2022-02-15
申请号：US17061556
申请日：2020-10-01
申请人： Physio-Control, Inc.
发明人： Robert Eugene Smith
摘要： A system capable of self-adjusting both sound level and spectral content to improve audibility and intelligibility of electronic device audible cues. Audible cues are stored as sound files. Ambient noise is detected, and the output of the audible cues is altered based on the ambient noise. Various embodiments include processed sound files that are more robust in noisy environments.
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公开(公告)号：US20210337310A1
公开(公告)日：2021-10-28
申请号：US17171565
申请日：2021-02-09
申请人： Anthony Bongiovi , Philip Fuller , Glenn Zelniker
发明人： Anthony Bongiovi , Philip Fuller , Glenn Zelniker
摘要： A system and method for digital processing including a gain element to process an input audio signal, a high pass filter to then filter the signal and create a high pass signal, a first filter module to filter the high pass signal and create a first filtered signal and a splitter to split the high pass signal into two high pass signals. The first filter module filters one high pass signals before a first compressor modulates the signal or a high pass signal to create a modulated signal. A second filter module filters the modulated signal to create a second filtered signal that is processed by a first processing module including a band splitter that splits the signal into low and high band signals that are then modulated by compressors. A second processing module processes the modulated low and high band signals to create an output signal.
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公开(公告)号：US20210318848A1
公开(公告)日：2021-10-14
申请号：US17209046
申请日：2021-03-22
发明人： Jeroen Koppens , Jeffrey Riedmiller , Kristofer Kjoerling , Alexander Stahlmann , Holger Hoerich , Alan J. Seefeldt
IPC分类号： G06F3/16 , H03G7/00 , H03G9/00 , G10L19/16 , H03G9/02 , H03G9/18 , H03G3/30 , H03G9/12 , H04S1/00 , H04S7/00 , G10L21/0324
摘要： In an audio encoder, for audio content received in a source audio format, default gains are generated based on a default dynamic range compression (DRC) curve, and non-default gains are generated for a non-default gain profile. Based on the default gains and non-default gains, differential gains are generated. An audio signal comprising the audio content, the default DRC curve, and differential gains is generated. In an audio decoder, the default DRC curve and the differential gains are identified from the audio signal. Default gains are re-generated based on the default DRC curve. Based on the combination of the re-generated default gains and the differential gains, operations are performed on the audio content extracted from the audio signal.
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公开(公告)号：US20210257983A1
公开(公告)日：2021-08-19
申请号：US17103376
申请日：2020-11-24
申请人： ANTHONY BONGIOVI , GLENN ZELNIKER , PHILLIP FULLER , RYAN COPT
发明人： ANTHONY BONGIOVI , GLENN ZELNIKER , PHILLIP FULLER , RYAN COPT
摘要： The present invention provides for methods and systems for digitally processing an audio signal to reproduce high quality sounds on various materials. In various embodiments, a method comprises filtering the signal with a low shelf filter and/or high shelf filter, passing the signal through a first compressor that, filtering the signal again with a low shelf filter and/or high shelf filter, processing the signal with a graphic equalizer based on a selected material profile, passing the signal through a second compressor, and outputting the signal to a transducer.
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公开(公告)号：US20210234524A1
公开(公告)日：2021-07-29
申请号：US17193986
申请日：2021-03-05
申请人： iZotope, Inc.
发明人： James McClellan , Gordon Wichern , Hannah Robertson , Aaron Wishnick , Alexey Lukin , Matthew Hines , Nicholas LaPenn
摘要： Some embodiments of the invention are directed to enabling a user to easily identify the frequency range(s) at which sound masking occurs, and addressing the masking, if desired. In this respect, the extent to which a first stem is masked by one or more second stems in a frequency range may depend not only on the absolute value of the energy of the second stem(s) in the frequency range, but also on the relative energy of the first stem with respect to the second stem(s) in the frequency range. Accordingly, some embodiments are directed to modeling sound masking as a function of the energy of the stem being masked and of the relative energy of the masked stem with respect to the masking stem(s) in the frequency range, such as by modeling sound masking as loudness loss, a value indicative of the reduction in loudness of a stem of interest caused by the presence of one or more other stems in a frequency range.
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