公开(公告)号：US20240187811A1

公开(公告)日：2024-06-06

申请号：US18327797

申请日：2021-12-02

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Mark R. P. Thomas ,  Daniel Arteaga ,  Christopher Graham Hines ,  Davide Scaini ,  Benjamin Southwell ,  Avery Bruni ,  Olha Michelle Townsend

IPC: H04S7/00

CPC classification number: H04S7/303 ,  H04S7/307 ,  H04S2400/11 ,  H04S2400/13 ,  H04S2400/15

Abstract: Some methods involve causing a plurality of audio devices in an audio environment to reproduce audio data, each audio device of the plurality of audio devices including at least one loudspeaker and at least one microphone, determining audio device location data including an audio device location for each audio device of the plurality of audio devices and obtaining microphone data from each audio device of the plurality of audio devices. Some methods involve determining a mutual audibility for each audio device of the plurality of audio devices relative to each other audio device of the plurality of audio devices, determining a user location of a person in the audio environment, determining a user location audibility of each audio device of the plurality of audio devices at the user location and controlling one or more aspects of audio device playback based, at least in part, on the user location audibility.

公开(公告)号：US11735194B2

公开(公告)日：2023-08-22

申请号：US16629432

申请日：2018-07-12

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Giulio Cengarle ,  Antonio Mateos Sole ,  Davide Scaini ,  Suraj Suhas Barkale

IPC: H03G5/00 ,  H03G3/20 ,  H04S3/02 ,  G10L19/16 ,  G10L19/008

CPC classification number: G10L19/167 ,  G10L19/008

Abstract: Methods, systems, and computer program products that provide streaming capabilities to audio input and output devices are disclosed. An audio processing device connects an upstream device to a downstream device. The upstream device is plugged into an input port of the audio processing device. The audio processing device intercepts a signal from the upstream device to the downstream device. The audio processing device converts the signal to digital data and streams the digital data to a server. The digital data can include metadata, e.g., an input gain. The audio processing device can adjust the input gain in response to instructions from the server. The audio processing device feeds a pass-through copy of the audio signal to an output port. A user can connect the downstream device in a usual signal chain into the output port of the audio processing device. The streaming does not affect the user's workflow.

公开(公告)号：US20240013799A1

公开(公告)日：2024-01-11

申请号：US18044777

申请日：2021-09-21

Applicant: Dolby Laboratories Licensing Corporation ,  DOLBY INTERNATIONAL AB

Inventor： Davide Scaini ,  Chunghsin Yeh ,  Giulio Cengarle ,  Mark David de Burgh

IPC: G10L21/0232 ,  G10L21/028 ,  G10L25/18 ,  G10L25/84 ,  G10L21/034 ,  G10L21/0364 ,  G10L25/21

CPC classification number: G10L21/0232 ,  G10L21/028 ,  G10L25/18 ,  G10L25/84 ,  G10L21/034 ,  G10L21/0364 ,  G10L25/21

Abstract: In some embodiments, a method, comprises: dividing, using at least one processor, an audio input into speech and non-speech segments; for each frame in each non-speech segment, estimating, using the at least one processor, a time-varying noise spectrum of the non-speech segment; for each frame in each speech segment, estimating, using the at least one processor, speech spectrum of the speech segment; for each frame in each speech segment, identifying one or more non-speech frequency components in the speech spectrum; comparing the one or more non-speech frequency components with one or more corresponding frequency components in a plurality of estimated noise spectra and selecting the estimated noise spectrum from the plurality of estimated noise spectra based on a result of the comparing.

公开(公告)号：US11425503B2

公开(公告)日：2022-08-23

申请号：US16987197

申请日：2020-08-06

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Daniel Arteaga ,  Giulio Cengarle ,  David Matthew Fischer ,  Antonio Mateos Sole ,  Davide Scaini ,  Alan Seefeldt

IPC: H04S7/00 ,  H04R5/04 ,  H04R5/02 ,  H04R5/027 ,  H04R3/12 ,  H04R3/00 ,  G01S5/18

Abstract: Embodiments are described for a method of simultaneously localizing a set of speakers and microphones, having only the times of arrival between each of the speakers and microphones. An autodiscovery process uses an external input to set: a global translation (3 continuous parameters), a global rotation (3 continuous parameters), and discrete symmetries, i.e., an exchange of any axis pairs and/or reversal of any axis. Different time of arrival acquisition techniques may be used, such as ultrasonic sweeps or generic multitrack audio content. The autodiscovery algorithm is based in minimizing a certain cost function, and the process allows for latencies in the recordings, possibly linked to the latencies in the emission.

公开(公告)号：US10779084B2

公开(公告)日：2020-09-15

申请号：US16336861

申请日：2017-09-28

Applicant: Dolby Laboratories Licensing Corporation ,  DOLBY INTERNATIONAL AB

Inventor： Daniel Arteaga ,  Giulio Cengarle ,  David Matthew Fischer ,  Antonio Mateos Sole ,  Davide Scaini ,  Alan J. Seefeldt

IPC: H04R5/02 ,  H04R5/04 ,  H04R5/027 ,  H04R3/12 ,  H04S7/00 ,  H04R3/00 ,  G01S5/18

Abstract: Embodiments are described for a method for localizing a set of speakers (106) and microphones (108), having only the times of arrival between each of the speakers and microphones. An autodiscovery process (107) uses an external input to set: a global translation (3 continuous parameters), a global rotation (3 continuous parameters), and discrete symmetries, i.e., an exchange of any axis pairs and/or reversal of any axis. Different time of arrival acquisition techniques may be used, such as ultrasonic sweeps or generic multitrack audio content. The autodiscovery algorithm is based in minimizing a certain cost function, and the process allows for latencies in the recordings, possibly linked to the latencies in the emission.