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公开(公告)号：US12035124B2
公开(公告)日：2024-07-09
申请号：US17521793
申请日：2021-11-08
发明人： Alan J. Seefeldt
CPC分类号： H04S7/302 , H04R5/02 , H04R5/04 , H04S3/008 , H04S2400/01 , H04S2400/11 , H04S2420/01
摘要： An apparatus and method of rendering audio. The method includes deriving filters by defining a binaural error, defining an activation penalty, and minimizing a cost function that is a combination of the binaural error and the activation penalty. In this manner, the listening experience is improved by reducing the signal level output by loudspeakers further from an audio object's desired position.
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公开(公告)号：US12003933B2
公开(公告)日：2024-06-04
申请号：US17630910
申请日：2020-07-25
CPC分类号： H04R5/04 , H04R29/001 , H04R2400/01 , H04R2430/20 , H04S2400/15
摘要： Methods for rendering audio for playback by two or more speakers are disclosed. The audio includes one or more audio signals, each with an associated intended perceived spatial position. Relative activation of the speakers may be a cost function of a model of perceived spatial position of the audio signals when played back over the speakers, a measure of proximity of the intended perceived spatial position of the audio signals to positions of the speakers, and one or more additional dynamically configurable functions. The dynamically configurable functions may be based on at least one or more properties of the audio signals, one or more properties of the set of speakers and/or one or more external inputs.
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公开(公告)号：US11962279B2
公开(公告)日：2024-04-16
申请号：US18327585
申请日：2023-06-01
IPC分类号： H04R29/00 , G10L21/038 , G10L25/21 , G10L25/51 , H03G1/00 , H03G3/30 , H03G5/00 , H03G7/00 , H03G9/00 , H04R3/00 , H04R3/04
CPC分类号： H03G3/3005 , G10L21/038 , G10L25/21 , G10L25/51 , H03G1/00 , H03G3/3089 , H03G7/007 , H03G9/005 , H04R3/00 , H04R3/04 , H04R2430/03
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.
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公开(公告)号：USD1004573S1
公开(公告)日：2023-11-14
申请号：US29800095
申请日：2021-07-19
设计人： Drew Alexander Walcott , Grayson H. Byrd , Peter Michaelian , Brian Edward Renz , John Carson Stewart , Cody Michael Proksa , Vincent Voron , Sripal S. Mehta , Alan J. Seefeldt
摘要： FIG. 1 is a front perspective view of a speaker showing our new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The dashed broken lines in the figures illustrate portions of the speaker that form no part of the claimed design.-
公开(公告)号：US20230075445A1
公开(公告)日：2023-03-09
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 , H04S7/00 , H03G3/30 , G10L19/16 , H03G9/18 , H03G9/00 , H03G7/00 , G10L21/0324 , H03G9/02 , H04S1/00 , H03G9/12
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：US20220360899A1
公开(公告)日：2022-11-10
申请号：US17630897
申请日：2020-07-27
摘要： Individual loudspeaker dynamics processing configuration data, for each of a plurality of loudspeakers of a listening environment, may be obtained. Listening environment dynamics processing configuration data may be determined, based on the individual loudspeaker dynamics processing configuration data. Dynamics processing may be performed on received audio data based on the listening environment dynamics processing configuration data, to generate processed audio data. The processed audio data may be rendered for reproduction via a set of loudspeakers that includes at least some of the plurality of loudspeakers, to produce rendered audio signals. The rendered audio signals may be provided to, and reproduced by, the set of loudspeakers.
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公开(公告)号：US20220253274A1
公开(公告)日：2022-08-11
申请号：US17660951
申请日：2022-04-27
发明人： Mark Alexander , Chunjian Li , Joshua Brandon Lando , Alan J. Seefeldt , C. Phillip Brown , Dirk Jeroen Breebaart
摘要： Media input audio data corresponding to a media stream and microphone input audio data from at least one microphone may be received. A first level of at least one of a plurality of frequency bands of the media input audio data, as well as a second level of at least one of a plurality of frequency bands of the microphone input audio data, may be determined. Media output audio data and microphone output audio data may be produced by adjusting levels of one or more of the first and second plurality of frequency bands based on the perceived loudness of the microphone input audio data, of the microphone output audio data, of the media output audio data and the media input audio data. One or more processes may be modified upon receipt of a mode-switching indication.
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公开(公告)号：US10606550B2
公开(公告)日：2020-03-31
申请号：US16387073
申请日：2019-04-17
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：US10602294B2
公开(公告)日：2020-03-24
申请号：US16368574
申请日：2019-03-28
发明人： Alan J. Seefeldt , Lie Lu , Chen Zhang
IPC分类号： H04S3/00 , H04S7/00 , G10L19/008
摘要： An audio processing system and method which calculates, based on spatial metadata of the audio object, a panning coefficient for each of the audio objects in relation to each of a plurality of predefined channel coverage zones. Converts the audio signal into submixes in relation to the predefined channel coverage zones based on the calculated panning coefficients and the audio objects. Each of the submixes indicating a sum of components of the plurality of the audio objects in relation to one of the predefined channel coverage zones. Generating a submix gain by applying an audio processing to each of the submix and controls an object gain applied to each of the audio objects. The object gain being as a function of the panning coefficients for each of the audio objects and the submix gains in relation to each of the predefined channel coverage zones.
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公开(公告)号：US10425723B2
公开(公告)日：2019-09-24
申请号：US15752883
申请日：2016-08-11
摘要： A soundbar speaker for transmitting reflected sound waves off an upper surface down to a listening environment, comprising: a cabinet containing a plurality of audio drivers, direct-firing drivers within the cabinet oriented to transmit sound along a horizontal axis substantially perpendicular to a front surface of the cabinet, and a pair of upward-firing slotted drivers placed proximate to ends of an top surface of the cabinet and oriented at an inclination angle relative to the horizontal axis. The slotted drivers are configured to create an overlapping reflected sound projection for high frequency sound when reflected down to a listening position located at a distance in front of the speaker pair. Such a speaker projects reflected sound that provides wider horizontal or side-to-side dispersion to better cover the listening area.
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