公开(公告)号：US11740859B2

公开(公告)日：2023-08-29

申请号：US17660951

申请日：2022-04-27

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Mark Alexander ,  Chunjian Li ,  Joshua Brandon Lando ,  Alan J. Seefeldt ,  C. Phillip Brown ,  Dirk Jeroen Breebaart

IPC: G06F3/16 ,  H04R1/10 ,  H04B15/00 ,  H04R3/04 ,  H04R29/00 ,  H04R5/033 ,  H04R5/04

CPC classification number: G06F3/165 ,  H04B15/00 ,  H04R1/1041 ,  H04R1/1083 ,  H04R3/04 ,  H04R29/001 ,  H04R5/033 ,  H04R5/04 ,  H04R2201/107 ,  H04R2430/01 ,  H04R2460/01

Abstract: 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.

公开(公告)号：US11711060B2

公开(公告)日：2023-07-25

申请号：US17839099

申请日：2022-06-13

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Brett G. Crockett ,  Alan J. Seefeldt

IPC: H04R29/00 ,  H03G5/00 ,  H03G3/30 ,  H03G7/00 ,  H03G9/00 ,  H03G1/00 ,  H04R3/04 ,  G10L21/038 ,  G10L25/21 ,  G10L25/51 ,  H04R3/00

CPC classification number: H03G3/3005 ,  G10L21/038 ,  G10L25/21 ,  G10L25/51 ,  H03G1/00 ,  H03G3/3089 ,  H03G7/007 ,  H03G9/005 ,  H04R3/00 ,  H04R3/04 ,  H04R2430/03

Abstract: 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.

公开(公告)号：US20220337969A1

公开(公告)日：2022-10-20

申请号：US17630098

申请日：2020-07-16

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Alan J. Seefeldt ,  Joshua B. Lando ,  Daniel Arteaga ,  Glenn N. Dickins ,  Mark Richard Paul Thomas

IPC: H04S7/00 ,  H04R5/02

Abstract: A rendering mode may be determined for received audio data, including audio signals and associated spatial data. The audio data may be rendered for reproduction via a set of loudspeakers of an environment according to the rendering mode, to produce rendered audio signals. Rendering the audio data may involve determining relative activation of a set of loudspeakers in an environment. The rendering mode may be variable between a reference spatial mode and one or more distributed spatial modes. The reference spatial mode may have an assumed listening position and orientation. In the distributed spatial mode(s), one or more elements of the audio data may each be rendered in a more spatially distributed manner than in the reference spatial mode and spatial locations of remaining elements of the audio data may be warped such that they span a rendering space of the environment more completely than in the reference spatial mode.

公开(公告)号：US11470437B2

公开(公告)日：2022-10-11

申请号：US16825776

申请日：2020-03-20

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Alan J. Seefeldt ,  Lie Lu ,  Chen Zhang

IPC: H04S7/00 ,  H04S3/00 ,  G10L19/008

Abstract: 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.

公开(公告)号：US11190893B2

公开(公告)日：2021-11-30

申请号：US16875999

申请日：2020-05-16

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Joshua Brandon Lando ,  Freddie Sanchez ,  Alan J. Seefeldt

IPC: H04S3/00 ,  G10L19/008 ,  H04R5/02 ,  G10L19/20 ,  H04R1/40 ,  G10L19/16 ,  H04R27/00 ,  H04S7/00

Abstract: Embodiments are directed to a method of rendering adaptive audio by receiving input audio comprising channel-based audio, audio objects, and dynamic objects, wherein the dynamic objects are classified as sets of low-priority dynamic objects and high-priority dynamic objects, rendering the channel-based audio, the audio objects, and the low-priority dynamic objects in a first rendering processor of an audio processing system, and rendering the high-priority dynamic objects in a second rendering processor of the audio processing system. The rendered audio is then subject to virtualization and post-processing steps for playback through soundbars and other similar limited height capable speakers.

公开(公告)号：US20210318848A1

公开(公告)日：2021-10-14

申请号：US17209046

申请日：2021-03-22

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Jeroen Koppens ,  Jeffrey Riedmiller ,  Kristofer Kjoerling ,  Alexander Stahlmann ,  Holger Hoerich ,  Alan J. Seefeldt

IPC: G06F3/16 ,  H03G7/00 ,  H03G9/00 ,  G10L19/16 ,  H03G9/02 ,  H03G9/18 ,  H03G3/30 ,  H03G9/12 ,  H04S1/00 ,  H04S7/00 ,  G10L21/0324

Abstract: 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.

公开(公告)号：USD928738S1

公开(公告)日：2021-08-24

申请号：US29657531

申请日：2018-07-23

Applicant: Dolby Laboratories Licensing Corporation

Designer： 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

公开(公告)号：USD922351S1

公开(公告)日：2021-06-15

申请号：US29725718

申请日：2020-02-26

Applicant: Dolby Laboratories Licensing Corporation

Designer： 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

公开(公告)号：US20210165629A1

公开(公告)日：2021-06-03

申请号：US17248992

申请日：2021-02-16

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Mark Alexander ,  Chunjian Li ,  Joshua Brandon Lando ,  Alan J. Seefeldt ,  C. Phillip Brown ,  Dirk Jeroen Breebaart

IPC: G06F3/16 ,  H04R29/00 ,  H04B15/00 ,  H04R1/10 ,  H04R3/04 ,  H04R5/04 ,  H04R5/033

Abstract: 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.

公开(公告)号：US11016721B2

公开(公告)日：2021-05-25

申请号：US16309230

申请日：2017-06-14

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Mark Alexander ,  Chunjian Li ,  Joshua Brandon Lando ,  Alan J. Seefeldt ,  C. Phillip Brown ,  Dirk Jeroen Breebaart

IPC: G06F3/16 ,  H04R3/04 ,  H04R1/10 ,  H04B15/00 ,  H04R29/00 ,  H04R5/033 ,  H04R5/04

Abstract: 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.