Patents by Inventor C. Phillip Brown
C. Phillip Brown has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12273702Abstract: A system and method of modifying a binaural signal using headtracking information. The system calculates a delay, a first filter response, and a second filter response, and applies these to the left and right components of the binaural signal according to the headtracking information. The system may also apply headtracking to parametric binaural signals. In this manner, headtracking may be applied to pre-rendered binaural audio.Type: GrantFiled: November 30, 2022Date of Patent: April 8, 2025Assignee: Dolby Laboratories Licensing CorporationInventors: C. Phillip Brown, Joshua Brandon Lando, Mark F. Davis, Alan J. Seefeldt, David Matthew Cooper, Dirk Jeroen Breebaart, Rhonda Wilson
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Publication number: 20250045010Abstract: Embodiments are described for a method of rendering audio for playback through headphones comprising receiving digital audio content, receiving binaural rendering metadata generated by an authoring tool processing the received digital audio content, receiving playback metadata generated by a playback device, and combining the binaural rendering metadata and playback metadata to optimize playback of the digital audio content through the headphones.Type: ApplicationFiled: August 7, 2024Publication date: February 6, 2025Applicant: Dolby Laboratories Licensing CorporationInventors: Nicolas R. TSINGOS, Rhonda WILSON, Sunil BHARITKAR, C. Phillip BROWN, Alan J. SEEFELDT, Remi AUDFRAY
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Publication number: 20250048051Abstract: A method (1000) of generating a plurality of audio channels from audio containing height and non-height audio channels for playing back them with an immersive loudspeaker system of with at least one height loudspeaker (5) inside a listening environment, comprising: applying (1500) a virtual height filter (1300) to a portion of each height channel (1010) for, when playing back the height channel by one of the loudspeakers, attenuating spectral components of the height channel directly emanating from said loudspeaker (1;2;3;4) and for amplifying spectral components of the height channel reflected from a roof or an area close to the roof inside the listening environment, to generate a plurality of virtual height filtered audio signals which are added to the corresponding non-height audio channels for playback by corresponding loudspeakers; and playing back the remaining portions of each height audio channel with the at least one height loudspeaker (5).Type: ApplicationFiled: December 19, 2022Publication date: February 6, 2025Applicants: Dolby Laboratories Licensing Corporation, DOLBY INTERNATIONAL ABInventors: C. Phillip BROWN, Eytan RUBIN, Jacobo GIRALT, Michal Stanislaw RYBCZYNSKI, Thomas ZIEGLER
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Patent number: 12164832Abstract: 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.Type: GrantFiled: July 12, 2023Date of Patent: December 10, 2024Assignee: Dolby Laboratories Licensing CorporationInventors: Mark Alexander, Chunjian Li, Joshua Brandon Lando, Alan J. Seefeldt, C. Phillip Brown, Dirk Jeroen Breebaart
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Publication number: 20240381046Abstract: Some methods may involve receiving a first content stream that includes first audio signals, rendering the first audio signals to produce first audio playback signals, generating first calibration signals, generating first modified audio playback signals by inserting the first calibration signals into the first audio playback signals, and causing a loudspeaker system to play back the first modified audio playback signals, to generate first audio device playback sound. The method(s) may involve receiving microphone signals corresponding to at least the first audio device playback sound and to second through Nth audio device playback sound corresponding to second through Nth modified audio playback signals (including second through Nth calibration signals) played back by second through Nth audio devices, extracting second through Nth calibration signals from the microphone signals and estimating at least one acoustic scene metric based, at least partly, on the second through Nth calibration signals.Type: ApplicationFiled: December 2, 2021Publication date: November 14, 2024Applicants: Dolby Laboratories Licensing Corporation, DOLBY INTERNATIONAL ABInventors: Mark R.P. THOMAS, Benjamin John SOUTHWELL, Avery BRUNI, Olha Michelle TOWNSEND, Daniel ARTEAGA, Davide SCAINI, Christopher Graham HINES, Alan J. SEEFELDT, David GUNAWAN, C. Phillip Brown
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Publication number: 20240373184Abstract: A method (200) of processing audio in an immersive audio format comprising at least one height audio channel, comprising: obtaining (250) two height audio signals from at least a portion of the at least one height audio channel: modifying (270) a relative phase between the two height audio signals in frequency bands in which phase differences are predominantly out of phase to obtain two phase modified height audio signals: and playing back (290) the processed audio comprising the two phase modified height audio signals with at least two audio loudspeakers. The phase differences occur as a result of having monaural signals emanated from two audio loudspeakers at one or more listening positions symmetrically off-center with respect to the at least two loudspeakers. laterally spaced with respect to each of said one or more listening positions. The method allows perception of sound height/elevation without using overhead speakers.Type: ApplicationFiled: July 21, 2022Publication date: November 7, 2024Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: C. Phillip Brown, Michael J. Smithers
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Publication number: 20240284104Abstract: An apparatus and method of rendering audio. A binaural signal is split on an amplitude weighting basis into a front binaural signal and a rear binaural signal, based on perceived position information of the audio. In this manner, the front-back differentiation of the binaural signal is improved.Type: ApplicationFiled: February 29, 2024Publication date: August 22, 2024Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Mark F. DAVIS, Nicolas R. TSINGOS, C. Phillip BROWN
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Patent number: 12061835Abstract: Embodiments are described for a method of rendering audio for playback through headphones comprising receiving digital audio content, receiving binaural rendering metadata generated by an authoring tool processing the received digital audio content, receiving playback metadata generated by a playback device, and combining the binaural rendering metadata and playback metadata to optimize playback of the digital audio content through the headphones.Type: GrantFiled: April 24, 2023Date of Patent: August 13, 2024Assignee: Dolby Laboratories Licensing CorporationInventors: Nicolas R. Tsingos, Rhonda Wilson, Sunil Bharitkar, C. Phillip Brown, Alan J. Seefeldt, Remi Audfray
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Publication number: 20240187806Abstract: Systems and methods for providing a binaural virtualization by upmixing the left and right input signals to produce left, right, and center channels, mixing the left and right input signals with the upmixed left and right channels respectively at a proportion given by a center-only reverb amount value, then reverberating the output of the mixing prior to virtualization. This can be further simplified by mode switching between two different filtering modes: a standard mode and a simplified mode.Type: ApplicationFiled: February 25, 2022Publication date: June 6, 2024Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: C. Phillip Brown, Yuxing Hao, Xuemei Yu, Zilong Yang
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Publication number: 20240114308Abstract: Some methods involve receiving, by a control system that is configured for implementing a plurality of renderers, audio data and listening configuration data for a plurality of listening configurations, each listening configuration of the plurality of listening configurations corresponding to a listening position and a listening orientation in an audio environment, and rendering, by each renderer and according to the listening configuration data, the received audio data to obtain a set of renderer-specific loudspeaker feed signals for a corresponding listening configuration. Each renderer may be configured to render the audio data for a different listening configuration. Some such methods may involve decomposing each set of renderer-specific loudspeaker feed signals into a renderer-specific set of frequency bands and combining the renderer-specific frequency bands of each renderer to produce an output set of loudspeaker feed signals.Type: ApplicationFiled: December 2, 2021Publication date: April 4, 2024Applicant: Dolby Laboratories Licensing CorporationInventors: Alan J. SEEFELDT, C. Phillip BROWN
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Publication number: 20240107255Abstract: Some methods involve receiving, by a control system configured for implementing a plurality of Tenderers, audio data and listening configuration data for a plurality of listening configurations, each listening configuration of the plurality of listening configurations corresponding to a listening position and a listening orientation in an audio environment, and rendering, by each Tenderer and according to the listening configuration data, the received audio data to obtain a set of Tenderer-specific loudspeaker feed signals for a corresponding listening configuration. Each Tenderer may be configured to render the audio data for a different listening configuration. Some such methods may involve decomposing each set of renderer-specific loudspeaker feed signals into a Tenderer-specific set of frequency bands and combining the renderer-specific frequency bands of each Tenderer to produce an output set of loudspeaker feed signals.Type: ApplicationFiled: December 2, 2021Publication date: March 28, 2024Applicant: Dolby Laboratories Licensing CorporationInventors: Alan J. SEEFELDT, C. Phillip BROWN
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Patent number: 11924619Abstract: An apparatus and method of rendering audio. A binaural signal is split on an amplitude weighting basis into a front binaural signal and a rear binaural signal, based on perceived position information of the audio. In this manner, the front-back differentiation of the binaural signal is improved.Type: GrantFiled: September 12, 2022Date of Patent: March 5, 2024Assignee: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Mark F. Davis, Nicolas R. Tsingos, C. Phillip Brown
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Publication number: 20240056760Abstract: A method of audio processing includes performing spatial analysis on a binaural signal to estimate level differences and phase differences characteristic of a binaural filter of the binaural signal, performing object extraction on the binaural audio signal using the estimated level and phase differences to generate a left/right main component signal and a left/right residual component signal. The system may process the left/right main and left/right residual components differently using different object processing parameters for e.g. repositioning, equalization, compression, upmixing, channel remapping or storage to generate a processed binaural signal that provides an improved listening experience. Repositioning may be based on head tracking sensor data.Type: ApplicationFiled: December 16, 2021Publication date: February 15, 2024Applicants: Dolby Laboratories Licensing Corporation, Dolby International ABInventors: Dirk Jeroen BREEBAART, Giulio CENGARLE, C. Phillip BROWN
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Publication number: 20230385013Abstract: Embodiments are described for a method of rendering audio for playback through headphones comprising receiving digital audio content, receiving binaural rendering metadata generated by an authoring tool processing the received digital audio content, receiving playback metadata generated by a playback device, and combining the binaural rendering metadata and playback metadata to optimize playback of the digital audio content through the headphones.Type: ApplicationFiled: April 24, 2023Publication date: November 30, 2023Applicant: Dolby Laboratories Licensing CorporationInventors: Nicolas R. TSINGOS, Rhonda WILSON, Sunil BHARITKAR, C. Phillip BROWN, Alan J. SEEFELDT, Remi AUDFRAY
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Publication number: 20230359430Abstract: 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.Type: ApplicationFiled: July 12, 2023Publication date: November 9, 2023Applicant: Dolby Laboratories Licensing CorporationInventors: Mark Alexander, Chunjian Li, Joshua Brandon Lando, Alan J. Seefeldt, C. Phillip Brown, Dirk Jeroen Breebaart
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Patent number: 11740859Abstract: 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.Type: GrantFiled: April 27, 2022Date of Patent: August 29, 2023Assignee: Dolby Laboratories Licensing CorporationInventors: Mark Alexander, Chunjian Li, Joshua Brandon Lando, Alan J. Seefeldt, C. Phillip Brown, Dirk Jeroen Breebaart
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Patent number: 11681490Abstract: Embodiments are described for a method of rendering audio for playback through headphones comprising receiving digital audio content, receiving binaural rendering metadata generated by an authoring tool processing the received digital audio content, receiving playback metadata generated by a playback device, and combining the binaural rendering metadata and playback metadata to optimize playback of the digital audio content through the headphones.Type: GrantFiled: March 3, 2022Date of Patent: June 20, 2023Assignee: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Nicolas R. Tsingos, Rhonda Wilson, Sunil Bharitkar, C. Phillip Brown, Alan J. Seefeldt, Remi Audfray
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Publication number: 20230091218Abstract: A system and method of modifying a binaural signal using headtracking information. The system calculates a delay, a first filter response, and a second filter response, and applies these to the left and right components of the binaural signal according to the headtracking information. The system may also apply headtracking to parametric binaural signals. In this manner, headtracking may be applied to pre-rendered binaural audio.Type: ApplicationFiled: November 30, 2022Publication date: March 23, 2023Inventors: C. Phillip Brown, Joshua Brandon Lando, Mark F. Davis, Alan J. Seefeldt, David Matthew Cooper, Dirk Jeroen Breebaart, Rhonda Wilson
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Publication number: 20230074817Abstract: An apparatus and method of rendering audio. A binaural signal is split on an amplitude weighting basis into a front binaural signal and a rear binaural signal, based on perceived position information of the audio. In this manner, the front-back differentiation of the binaural signal is improved.Type: ApplicationFiled: September 12, 2022Publication date: March 9, 2023Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Mark F. DAVIS, Nicolas R. TSINGOS, C. Phillip BROWN
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Patent number: 11553296Abstract: A system and method of modifying a binaural signal using headtracking information. The system calculates a delay, a first filter response, and a second filter response, and applies these to the left and right components of the binaural signal according to the headtracking information. The system may also apply headtracking to parametric binaural signals. In this manner, headtracking may be applied to pre-rendered binaural audio.Type: GrantFiled: February 4, 2021Date of Patent: January 10, 2023Assignee: Dolby Laboratories Licensing CorporationInventors: C. Phillip Brown, Joshua Brandon Lando, Mark F. Davis, Alan J. Seefeldt, David Matthew Cooper, Dirk Jeroen Breebaart, Rhonda Wilson