公开(公告)号：US12069464B2

公开(公告)日：2024-08-20

申请号：US17625720

申请日：2020-07-07

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Dirk Jeroen Breebaart ,  David Matthew Cooper ,  Giulio Cengarle ,  Brett G. Crockett ,  Rhonda J. Wilson

IPC: H04S3/00 ,  H04R5/04 ,  H04S7/00

CPC classification number: H04S3/008 ,  H04R5/04 ,  H04S7/301 ,  H04S2400/01 ,  H04S2420/03

Abstract: A method for generating mastered audio content, the method comprising obtaining an input audio content comprising a number, M1, of audio signals, obtaining rendered presentation of the input audio content, the rendered presentation comprising a number, M2, of audio signals, obtaining a mastered presentation generated by mastering the rendered presentation, comparing the mastered presentation with the rendered presentation to determine one or more indications of differences between the mastered presentation and the rendered presentation, modifying one or more of the audio signals of the input audio content based on the indications of differences to generate the mastered audio content. With this approach, conventional, typically stereo, channel-based mastering tools can be used to provide a mastered version of any input audio content, including object-based immersive audio content.

公开(公告)号：US20240179485A1

公开(公告)日：2024-05-30

申请号：US18535192

申请日：2023-12-11

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Jun Wang ,  Giulio Cengarle ,  Juan Felix Torres ,  Daniel Arteaga

IPC: H04S7/00 ,  H04R5/02

CPC classification number: H04S7/302 ,  H04R5/02 ,  H04S7/308 ,  H04S2400/11 ,  H04S2400/13

Abstract: An audio object including audio content and object metadata is received. The object metadata indicates an object spatial position of the audio object to be rendered by audio speakers in a playback environment. Based on the object spatial position and source spatial positions of the audio speakers, initial gain values for the audio speakers are determined. The initial gain values can be used to select a set of audio speakers from among the audio speakers. Based on the object spatial position and a set of source spatial positions at which the set of audio speakers are respectively located in the playback environment, a set of non-negative optimized gain values for the set of audio speakers is determined. The audio object at the object spatial position is rendered with the set of optimized gain values for the set of audio speakers.

公开(公告)号：US20220303593A1

公开(公告)日：2022-09-22

申请号：US17837715

申请日：2022-06-10

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Philip Nicol ,  Antonio Mateos Sole ,  Giulio Cengarle ,  Cristina Michel Vasco

IPC: H04N21/232 ,  H04H60/04 ,  G10H7/00 ,  G10H1/46 ,  G10H1/36 ,  G10H1/44 ,  G10H1/00 ,  H04N21/2343 ,  H04N21/2187 ,  H04N21/233 ,  H04N21/234 ,  H04N21/433

Abstract: Methods, systems, and computer program products for network-based processing and distribution of multimedia content of a live performance are disclosed. In some implementations, recording devices can be configured to record a multimedia event (e.g., a musical performance). The recording devices can provide the recordings to a server while the event is ongoing. The server automatically synchronizes, mixes and masters the recordings. The server performs the automatic mixing and mastering using reference audio data previously captured during a rehearsal. The server streams the mastered recording to multiple end users through the Internet or other public or private network. The streaming can be live streaming.

公开(公告)号：US20210204003A1

公开(公告)日：2021-07-01

申请号：US17194789

申请日：2021-03-08

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Philip Nicol ,  Antonio Mateos Sole ,  Giulio Cengarle ,  Cristina Michel Vasco

IPC: H04N21/232 ,  H04H60/04 ,  G10H7/00 ,  G10H1/46 ,  G10H1/36 ,  G10H1/44 ,  G10H1/00 ,  H04N21/2343 ,  H04N21/2187 ,  H04N21/233 ,  H04N21/234 ,  H04N21/433

Abstract: Methods, systems, and computer program products for network-based processing and distribution of multimedia content of a live performance are disclosed. In some implementations, recording devices can be configured to record a multimedia event (e.g., a musical performance). The recording devices can provide the recordings to a server while the event is ongoing. The server automatically synchronizes, mixes and masters the recordings. The server performs the automatic mixing and mastering using reference audio data previously captured during a rehearsal. The server streams the mastered recording to multiple end users through the Internet or other public or private network. The streaming can be live streaming.

公开(公告)号：US10405120B2

公开(公告)日：2019-09-03

申请号：US15647121

申请日：2017-07-11

Applicant: Dolby Laboratories Licensing Corporation ,  Dolby International AB

Inventor： Jun Wang ,  Giulio Cengarle ,  Juan Felix Torres ,  Daniel Arteaga

IPC: H04R5/02 ,  H04S3/00 ,  H04S7/00 ,  H04R5/04

Abstract: An audio object including audio content and object metadata is received. The object metadata indicates an object spatial position of the audio object to be rendered by audio speakers in a playback environment. Based on the object spatial position and source spatial positions of the audio speakers, initial gain values for the audio speakers are determined. The initial gain values can be used to select a set of audio speakers from among the audio speakers. Based on the object spatial position and a set of source spatial positions at which the set of audio speakers are respectively located in the playback environment, a set of non-negative optimized gain values for the set of audio speakers is determined. The audio object at the object spatial position is rendered with the set of optimized gain values for the set of audio speakers.

公开(公告)号：US09949052B2

公开(公告)日：2018-04-17

申请号：US15451241

申请日：2017-03-06

Applicant: Dolby Laboratories Licensing Corporation ,  Dolby International AB

Inventor： Jun Wang ,  Giulio Cengarle ,  Juan Felix Torres ,  Daniel Arteaga

IPC: H04R5/02 ,  H04S3/00 ,  H04S7/00

CPC classification number: H04S3/002 ,  H04R5/02 ,  H04R5/04 ,  H04S7/30 ,  H04S7/308 ,  H04S2400/11 ,  H04S2400/13 ,  H04S2420/03

Abstract: An audio object including audio content and object metadata is received. The object metadata indicates an object spatial position of the audio object to be rendered by audio speakers in a playback environment. Based on the object spatial position and source spatial positions of the audio speakers, initial gain values for the audio speakers are determined. The initial gain values can be used to select a set of audio speakers from among the audio speakers. Based on the object spatial position and a set of source spatial positions at which the set of audio speakers are respectively located in the playback environment, a set of non-negative optimized gain values for the set of audio speakers is determined. The audio object at the object spatial position is rendered with the set of optimized gain values for the set of audio speakers.

公开(公告)号：US12051435B2

公开(公告)日：2024-07-30

申请号：US17733397

申请日：2022-04-29

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Giulio Cengarle ,  Antonio Mateos Sole ,  Brett G. Crockett

IPC: G10L21/0264 ,  G10L21/0232 ,  H03G3/30

CPC classification number: G10L21/0232 ,  G10L21/0264 ,  H03G3/3005

Abstract: Methods, systems, and computer program products of automatic de-essing are disclosed. An automatic de-esser can be used without manually setting parameters and can perform reliable sibilance detection and reduction regardless of absolute signal level, singer gender and other extraneous factors. An audio processing device divides input audio signals into buffers each containing a number of samples, the buffers overlapping one another. The audio processing device transforms each buffer from the time domain into the frequency domain and implements de-essing as a multi-band compressor that only acts on a designated sibilance band. The audio processing device determines an amount of attenuation in the sibilance band based on comparison of energy level in sibilance band of a buffer to broadband energy level in a previous buffer. The amount of attenuation is also determined based on a zero-crossing rate, as well as a slope and onset of a compression curve.

公开(公告)号：US20230360662A1

公开(公告)日：2023-11-09

申请号：US18026281

申请日：2021-09-15

Applicant: Dolby Laboratories Licensing Corporation ,  Dolby International AB

Inventor： Zhiwei Shuang ,  Yuanxing Ma ,  Yang Liu ,  Ziyu Yang ,  Giulio Cengarle

IPC: G10L21/0208 ,  H04S1/00

CPC classification number: G10L21/0208 ,  H04S1/007 ,  G10L2021/02166

Abstract: The present invention relates to a method and device for processing a first and a second audio signal representing an input binaural audio signal acquired by a binaural recording device. The present invention further relates to a method for rendering a binaural audio signal on a speaker system. The method for processing a binaural signal comprising extracting audio information from the first audio signal, computing a band gain for reducing noise in the first audio signal and applying the band gains to respective frequency bands of the first audio signal in accordance with a dynamic scaling factor, to provide a first output audio signal. Wherein the dynamic scaling factor has a value between zero and one and is selected so as to reduce quality degradation for the first audio signal.

公开(公告)号：US11749243B2

公开(公告)日：2023-09-05

申请号：US17837715

申请日：2022-06-10

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Philip Nicol ,  Antonio Mateos Sole ,  Giulio Cengarle ,  Cristina Michel Vasco

IPC: H04N21/2343 ,  H04N21/2187 ,  H04N21/232 ,  H04N21/233 ,  H04N21/234 ,  H04N21/433 ,  G10H1/46 ,  H04H60/04 ,  G10H7/00 ,  G10H1/36 ,  G10H1/44 ,  G10H1/00 ,  G06V10/25 ,  G06V20/40

CPC classification number: G10H1/46 ,  G06V10/25 ,  G10H1/00 ,  G10H1/0058 ,  G10H1/368 ,  G10H1/44 ,  G10H7/00 ,  H04H60/04 ,  H04N21/2187 ,  H04N21/232 ,  H04N21/233 ,  H04N21/234 ,  H04N21/234345 ,  H04N21/4334 ,  G06V20/40 ,  G10H2210/305 ,  G10H2220/455 ,  G10H2240/325

Abstract: Methods, systems, and computer program products for network-based processing and distribution of multimedia content of a live performance are disclosed. In some implementations, recording devices can be configured to record a multimedia event (e.g., a musical performance). The recording devices can provide the recordings to a server while the event is ongoing. The server automatically synchronizes, mixes and masters the recordings. The server performs the automatic mixing and mastering using reference audio data previously captured during a rehearsal. The server streams the mastered recording to multiple end users through the Internet or other public or private network. The streaming can be live streaming.

公开(公告)号：US11430463B2

公开(公告)日：2022-08-30

申请号：US17259787

申请日：2019-07-11

Applicant: DOLBY INTERNATIONAL AB ,  DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Giulio Cengarle ,  Antonio Mateos Sole ,  Dirk Jeroen Breebaart

IPC: G10L21/034 ,  G10L21/028 ,  G10L25/18 ,  G10L25/51

Abstract: Various embodiments are disclosed for (possibly simultaneously) applying EQ and DRC to audio signals. In an embodiment, a method comprises: dividing an input audio signal into n frames, where n is a positive integer greater than one; dividing each frame of the input audio signal into Nb frequency bands, where Nb is a positive integer greater than one; for each frame n: computing an input level of the input audio signal in each band f, resulting in a input audio level distribution for the input audio signal; computing a gain for each band f based at least in part on a mapping of one or more properties of the input audio level distribution to a reference N audio level distribution computed from one or more reference audio signals; and applying each computed gain for each band f to each corresponding band f of the input audio signal.