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1. 发明申请

US20220345101A1 A METHOD OF OPERATING AN EAR LEVEL AUDIO SYSTEM AND AN EAR LEVEL AUDIO SYSTEM 有权
公开(公告)号：US20220345101A1
公开(公告)日：2022-10-27
申请号：US17763457
申请日：2020-09-23
申请人： WIDEX A/S
发明人： Carsten PALUDAN-MÜLLER , Alan WIINBERG
IPC分类号： H03G3/32 , H03G9/00 , H03G9/02 , H04R25/00 , H04R1/10
摘要： A method (400) of operating an ear level audio system, comprises the steps of applying (401) a first frequency dependent gain to an input signal in order to provide a first processed input signal adapted to at least one of compensating a hearing loss and suppressing noise, determining (402) a noise floor level of the first processed input signal, applying (403) a second frequency dependent gain to the first processed input signal and hereby providing an output signal such that for at least one frequency range the noise floor level of the output signal is positioned at a selected position above or below a hearing threshold.

2. 发明授权

US11429341B2 Dynamic range control for a wide variety of playback environments 有权
公开(公告)号：US11429341B2
公开(公告)日：2022-08-30
申请号：US17209046
申请日：2021-03-22
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
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 , 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.

3. 发明授权

US11250868B2 Efficient DRC profile transmission 有权
公开(公告)号：US11250868B2
公开(公告)日：2022-02-15
申请号：US17022152
申请日：2020-09-16
申请人： DOLBY INTERNATIONAL AB
发明人： Holger Hoerich , Jeroen Koppens
IPC分类号： H03G3/00 , G10L19/16 , H03G7/00 , G10L21/0364 , G10L19/26 , H03G9/00 , H04N21/233
摘要： A method (600) for decoding an encoded audio signal (102) is described. The encoded audio signal (102) comprises a sequence of frames. Furthermore, the encoded audio signal (102) is indicative of a plurality of different dynamic range control (DRC) profiles for a corresponding plurality of different rendering modes. Different subsets of DRC profiles from the plurality of DRC profiles are comprised within different frames of the sequence of frames, such that two or more frames of the sequence of frames jointly comprise the plurality of DRC profiles. The method (600) comprises determining a first rendering mode from the plurality of different rendering modes; determining (609, 610) one or more DRC profiles from a subset of DRC profiles comprised within a current frame of the sequence of frames; determining (611) whether at least one of the one or more DRC profiles is applicable to the first rendering mode; selecting (604) a default DRC profile as a current DRC profile, if none of the one or more DRC profiles is applicable to the first rendering mode; wherein definition data of the default DRC profile is known at a decoder (100) for decoding the encoded audio signal (102); and decoding the current frame using the current DRC profile.

4. 发明申请

US20210142811A1 Multi-Band Noise Gate 有权
公开(公告)号：US20210142811A1
公开(公告)日：2021-05-13
申请号：US17093223
申请日：2020-11-09
申请人： GoPro, Inc.
发明人： Joyce Gorny , Erich Tisch , Per Magnus Fredrik Hansson
IPC分类号： G10L19/02 , H03G3/30 , G10L19/18 , H03G9/00 , H03G9/02 , G10L21/0232
摘要： The present disclosure relates to processing a plurality of audio signals. A device receives the plurality of audio signals in the frequency domain and determining an overall attenuation multiplier based on the plurality of audio signals and an overall lookup table that relates decibel values to different overall attenuation multipliers. The device determines an attenuation vector comprising a plurality of bin-specific attenuation multipliers, each bin-specific attenuation multiplier respectively corresponding to a different frequency bin of the plurality of frequency bins. The device scales each bin-specific attenuation value in the attenuation vector with the overall attenuation multiplier, and edits each of the audio signals based on the scaled bin-specific attenuation values in the attenuation vector.

5. 发明申请

US20210126606A1 Audio Control Using Auditory Event Detection 有权
公开(公告)号：US20210126606A1
公开(公告)日：2021-04-29
申请号：US17093178
申请日：2020-11-09
申请人： Dolby Laboratories Licensing Corporation
发明人： Brett G. CROCKETT , Alan J. SEEFELDT
IPC分类号： H03G3/30 , H03G7/00 , H03G9/00 , H03G1/00 , H04R3/04 , G10L21/038 , G10L25/21
摘要： In some embodiments, a method for processing an audio signal in an audio processing apparatus is disclosed. The method includes receiving an audio signal and a parameter, the parameter indicating a location of an auditory event boundary. An audio portion between consecutive auditory event boundaries constitutes an auditory event. The method further includes applying a modification to the audio signal based in part on an occurrence of the auditory event. The parameter may be generated by monitoring a characteristic of the audio signal and identifying a change in the characteristic.

6. 发明授权

US10951189B2 Signal processing device, method and speaker 有权
公开(公告)号：US10951189B2
公开(公告)日：2021-03-16
申请号：US16064409
申请日：2017-03-15
申请人： GOERTEK INC.
发明人： Jakob Birkedal Nielsen , Andrew Paddock Bright
IPC分类号： H03G9/02 , H03G3/32 , H03G5/16 , H03G7/00 , H03G9/00 , H04R1/22 , H04R3/04 , H04R25/00
摘要： The present invention discloses a signal processing device, a signal processing method and a speaker. The signal processing device comprises a multi-band dynamic range controller, wherein the multi-band dynamic range controller receives an audio signal and includes a first band splitting unit and a resonant band adjustment unit; the first band splitting unit is configured to split the audio signal into multiple bands and obtain at least one resonant band therefrom, which has a resonant frequency band signal in a resonant frequency range of the audio signal; and the resonant band adjustment unit is configured to adjust the resonant frequency band signal based at least on a resonant band dynamic range control gain and output an adjusted resonant frequency band signal for combination with other band signals into a compression output signal.

7. 发明授权

US10917722B2 System and method for digital signal processing 有权
公开(公告)号：US10917722B2
公开(公告)日：2021-02-09
申请号：US16431386
申请日：2019-06-04
申请人： BONGIOVI ACOUSTICS LLC
发明人： Anthony Bongiovi , Philip Fuller , Glenn Zelniker
IPC分类号： H04R3/04 , H03G3/00 , H03G7/00 , H03G9/00 , H03G9/02 , H04S7/00 , G06F3/16 , H03G5/16 , G10L21/034 , H03G9/14 , G06F16/60 , H03G5/02
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.

8. 发明申请

US20200293272A1 DYNAMIC RANGE CONTROL FOR A WIDE VARIETY OF PLAYBACK ENVIRONMENTS 审中-公开
公开(公告)号：US20200293272A1
公开(公告)日：2020-09-17
申请号：US16827671
申请日：2020-03-23
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
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.

9. 发明授权

US10752169B2 Engine sound management 有权
公开(公告)号：US10752169B2
公开(公告)日：2020-08-25
申请号：US16164017
申请日：2018-10-18
申请人： Bose Corporation
发明人： Cristian Marius Hera , Ben J. Feng
IPC分类号： B60Q9/00 , B60W50/14 , G10K15/02 , H03G9/00 , B60Q5/00 , H03G5/16 , H04R1/22
摘要： In a vehicle equipped with a vehicle sound system, determining a virtual fixed gear ratio; determining a virtual RPM based on the virtual fixed gear ratio; generating a set of harmonic signals based on the virtual RPM, the harmonic signals being sine-wave signals proportional to harmonics of the virtual RPM; processing the harmonic signals to produce a set of processed harmonic signals; and in the vehicle sound system, transducing the processed harmonic signals to acoustic energy thereby to produce an engine sound within a passenger cabin of the vehicle.

10. 发明申请

US20200244242A1 SYSTEM AND METHOD FOR DIGITAL SIGNAL PROCESSING 审中-公开
公开(公告)号：US20200244242A1
公开(公告)日：2020-07-30
申请号：US16847799
申请日：2020-04-14
申请人： Anthony Bongiovi , Glenn Zelniker , Phillip Fuller , Ryan Copt
发明人： Anthony Bongiovi , Glenn Zelniker , Phillip Fuller , Ryan Copt
IPC分类号： H03G5/16 , H03G9/02 , H03G9/00 , H04R3/00 , H04S7/00 , H03G5/00 , G06F3/16 , H04R3/04
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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