公开(公告)号：US12136432B2

公开(公告)日：2024-11-05

申请号：US17781632

申请日：2020-12-08

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Benjamin Alexander Jancovich ,  Timothy Alan Port ,  Andrew P. Reilly ,  Richard J. Cartwright

IPC: G10L21/0232 ,  G06F3/16 ,  G10L15/22 ,  G10L25/51 ,  H03G3/32 ,  H03G9/02 ,  H04M9/08 ,  H04R1/08 ,  H04R1/40 ,  H04R3/00 ,  H04R3/02 ,  H04R3/04 ,  H04R3/12 ,  H04R29/00

Abstract: Noise compensation method comprising: (a) receiving a content stream including content audio data; (b) receiving first microphone signals from a first device; (c) detecting ambient noise from a noise source location in or near the audio environment; (d) causing a first wireless signal to be transmitted from the first device to a second device, the first wireless signal including instructions for the second device to record an audio segment (e) receiving a second wireless signal from the second device; (f) determining a content stream audio segment time interval for a content stream audio segment; (g) receiving a third wireless signal from the second device, including a recorded audio segment captured via a second device microphone; (h) determining a second device ambient noise signal at the second device location; and (i) implementing a noise compensation method for the content audio data based, at least in part, on the second device ambient noise signal.

公开(公告)号：US12154587B2

公开(公告)日：2024-11-26

申请号：US17784071

申请日：2020-12-09

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Timothy Alan Port ,  Benjamin Alexander Jancovich

IPC: G10L21/0232 ,  G06F3/16 ,  G10L15/22 ,  G10L25/51 ,  H03G3/32 ,  H03G9/02 ,  H04M9/08 ,  H04R1/08 ,  H04R1/40 ,  H04R3/00 ,  H04R3/02 ,  H04R3/04 ,  H04R3/12 ,  H04R29/00

Abstract: Some implementations involve receiving a content stream that includes audio data, receiving at least one type of level adjustment indication relating to playback of the audio data and controlling a level of the input audio data, based on the at least one type of level adjustment indication, to produce level-adjusted audio data. Some examples involve determining, based at least in part on the type(s) of level adjustment indication, a multiband limiter configuration, applying the multiband limiter to the level-adjusted audio data, to produce multiband limited audio data and providing the multiband limited audio data to one or more audio reproduction transducers of an audio environment.

公开(公告)号：US11817114B2

公开(公告)日：2023-11-14

申请号：US17779515

申请日：2019-12-09

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Timothy Alan Port ,  Daniel Steven Templeton ,  Jack Gregory Hays

IPC: G10L21/0232 ,  G06F3/16 ,  G10L15/22 ,  G10L25/51 ,  H04R1/08 ,  H04R3/02 ,  H04R3/04 ,  H04R29/00 ,  H04R1/40 ,  H04R3/00 ,  H04R3/12 ,  H03G3/32 ,  H03G9/02 ,  H04M9/08

CPC classification number: G10L21/0232 ,  G06F3/162 ,  G06F3/165 ,  G10L15/22 ,  G10L25/51 ,  H03G3/32 ,  H03G9/025 ,  H04M9/082 ,  H04R1/08 ,  H04R1/403 ,  H04R1/406 ,  H04R3/005 ,  H04R3/02 ,  H04R3/04 ,  H04R3/12 ,  H04R29/001 ,  H04R29/002 ,  G10L2015/223 ,  H04R2420/07 ,  H04R2430/01

Abstract: Some implementations involve receiving a content stream that includes audio data, determining a content type corresponding to the content stream and determining, based at least in part on the content type, a noise compensation method. Some examples involve performing the noise compensation method on the audio data to produce noise-compensated audio data, rendering the noise-compensated audio data for reproduction via a set of audio reproduction transducers of the audio environment, to produce rendered audio signals, and providing the rendered audio signals to at least some audio reproduction transducers of the audio environment.

公开(公告)号：US11695812B2

公开(公告)日：2023-07-04

申请号：US17423061

申请日：2020-01-14

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Timothy Alan Port ,  Richard J. Cartwright

IPC: H04L65/403 ,  H04N19/593 ,  G06V20/40 ,  H04M3/42 ,  H04N7/01 ,  G10L15/26

CPC classification number: H04L65/403 ,  G06V20/44 ,  G06V20/48 ,  G06V20/49 ,  H04M3/42221 ,  H04N7/0127 ,  H04N19/593 ,  G10L15/26

Abstract: An apparatus and method relating to use of a physical writing surface (132) during a videoconference or presentation. Snapshots of a whiteboard (132) are identified by applying a difference measure to the video data (e.g., as a way of comparing frames at different times). Audio captured by a microphone may be processed to generate textual data, wherein a portion of the textual data is associated with each snapshot. The writing surface may be identified (enrolled) using gestures. Image processing techniques may be used to transform views of a writing surface.

公开(公告)号：US20230026347A1

公开(公告)日：2023-01-26

申请号：US17781622

申请日：2020-12-08

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Benjamin Alexander Jancovich ,  Timothy Alan Port ,  Andrew P. Reilly ,  Richard J. Cartwright

IPC: H04R3/04 ,  H04R3/02 ,  H04R29/00

Abstract: Some noise compensation methods involve receiving microphone signals corresponding to ambient noise from a noise source location in or near an audio environment, determining or estimating a listener position in the audio environment and estimating at least one critical distance, which is a distance from the noise source location at which directly propagated sound pressure is equal to diffuse field sound pressure. Some examples involve estimating whether the listener position is within the at least one critical distance and implementing a noise compensation method for the ambient noise based, at least in part, on an estimate of whether the listener position is within the critical distance.

公开(公告)号：US11238883B2

公开(公告)日：2022-02-01

申请号：US16420891

申请日：2019-05-23

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Timothy Alan Port ,  Winston Chi Wai Ng ,  Mark William Gerrard

IPC: G10L21/0364 ,  G10L13/033 ,  G10L13/08

Abstract: A method and a system for dialogue enhancement of an audio signal, comprising receiving (step S1) the audio signal and a text content associated with dialogue occurring in the audio signal, generating (step S2) parameterized synthesized speech from the text content, and applying (step S3) dialogue enhancement to the audio signal based on the parameterized synthesized speech. With the invention text captions, subtitles, or other forms of text content included in an audio stream, can be used to significantly improve dialogue enhancement on the playback side.

公开(公告)号：US12159644B2

公开(公告)日：2024-12-03

申请号：US17784061

申请日：2020-12-09

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Timothy Alan Port ,  Benjamin Alexander Jancovich

IPC: G10L21/0232 ,  G06F3/16 ,  G10L15/22 ,  G10L25/51 ,  H03G3/32 ,  H03G9/02 ,  H04M9/08 ,  H04R1/08 ,  H04R1/40 ,  H04R3/00 ,  H04R3/02 ,  H04R3/04 ,  H04R3/12 ,  H04R29/00

Abstract: Some implementations involve receiving a content stream that includes audio data, receiving at least one type of level adjustment indication relating to playback of the audio data and controlling a level of the input audio data, based on the at least one type of level adjustment indication, to produce level-adjusted audio data. Some examples involve determining, based at least in part on the type(s) of level adjustment indication, a multiband limiter configuration, applying the multiband limiter to the level-adjusted audio data, to produce multiband limited audio data and providing the multiband limited audio data to one or more audio reproduction transducers of an audio environment.

公开(公告)号：US11736081B2

公开(公告)日：2023-08-22

申请号：US17255329

申请日：2019-06-20

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Timothy Alan Port ,  William Thomas Rowley ,  Winston Chi Wai Ng ,  Sebastian P. B. Holzapfel

IPC: H03G5/16 ,  H03G9/00 ,  H03G9/02 ,  H04R3/04 ,  H04R1/32 ,  H03F3/20 ,  H03G7/08 ,  H04R1/08

CPC classification number: H03G5/165 ,  H03G9/005 ,  H03G9/025 ,  H04R3/04 ,  H03F3/20 ,  H03G7/08 ,  H04R1/08 ,  H04R1/326 ,  H04R2420/09

Abstract: In some embodiments, a method for performing enhancement on an audio signal to generate an enhanced audio signal in response to feedback indicative of amount of compression applied to at least one frequency band of the enhanced audio signal. In typical embodiments, the enhancement is or includes bass enhancement. Examples of other types of enhancement performed in other embodiments include dialog enhancement, upmixing, frequency shifting, harmonic injection or transposition, subharmonic injection, virtualization, and equalization. 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, tablet, mobile phone, or other device with small speakers) configured to perform any embodiment of the method.

公开(公告)号：US20230037824A1

公开(公告)日：2023-02-09

申请号：US17781632

申请日：2020-12-08

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Benjamin Alexander Jancovich ,  Timothy Alan Port ,  Andrew P. Reilly ,  Richard J. Cartwright

IPC: H04R3/12 ,  G06F3/16 ,  H04R1/40 ,  H04R3/00 ,  H04R29/00

Abstract: Noise compensation method comprising: (a) receiving a content stream including content audio data; (b) receiving first microphone signals from a first device; (c) detecting ambient noise from a noise source location in or near the audio environment; (d) causing a first wireless signal to be transmitted from the first device to a second device, the first wireless signal including instructions for the second device to record an audio segment (e) receiving a second wireless signal from the second device; (f) determining a content stream audio segment time interval for a content stream audio segment; (g) receiving a third wireless signal from the second device, including a recorded audio segment captured via a second device microphone; (h) determining a second device ambient noise signal at the second device location; and (i) implementing a noise compensation method for the content audio data based, at least in part, on the second device ambient noise signal.

公开(公告)号：US11025681B2

公开(公告)日：2021-06-01

申请号：US16642744

申请日：2018-09-27

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Timothy Alan Port

IPC: H04N7/15 ,  H04L29/06 ,  G06F3/042 ,  G06F3/0488 ,  G06T3/00 ,  G06T5/00 ,  G06T5/50 ,  H04M3/56

Abstract: A method of processing of a sequence of video frames from a camera capturing a writing surface for subsequent transmission to at least one of a remote videoconferencing client and a remote videoconferencing server. The method comprises receiving the sequence of video frames from the camera; and selecting an image area of interest in the video frames, comprising selecting one of a sub-area of the video frames and an entire area of the video frames. The method also comprises, for each current video frame of the sequence of video frames, generating a pen stroke mask by applying adaptive thresholding to the image area of interest. The method also comprises generating an output video frame using the pen stroke mask. Corresponding systems and computer readable media are disclosed.