公开(公告)号：US20220383889A1

公开(公告)日：2022-12-01

申请号：US17627116

申请日：2020-07-16

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Yuanxing Ma ,  Kai Li ,  Qianqian Fang

IPC: G10L21/0216 ,  G10L25/18

Abstract: A method is disclosed herein for adapting parameters of a sibilance detector. Time-frequency features are extracted from an audio signal being received and. Based on those time-frequency features, a determination is made of whether the audio signal includes a short-term feature or a long-term feature. In accordance with determining that the audio signal includes the short-term feature or the long-term feature, one or more parameters of a sibilance detector for detecting sibilance in the audio signal are adapted. Sibilance in the audio signal, is detected using the sibilance detector with the one or more adapted parameters.

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：US20250008284A1

公开(公告)日：2025-01-02

申请号：US18689187

申请日：2022-09-07

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Kai Li ,  Hao Luo ,  Lei Gan ,  Xu Li ,  Weiwei Wen ,  Yuanxing Ma

IPC: H04R29/00 ,  G06F3/16 ,  G10L25/60

Abstract: A system for real-time monitoring of user-generated audio content for audio anomaly and a related method are disclosed. In some embodiments, the system is programmed to receive, in real time, audio data generated by a first mobile device, such as a smartphone. The system is programed to determine, in real time, whether an audio anomaly has occurred from the audio data. The system is programmed to cause, in real time, a presentation of an alert to a second mobile device, which could be the same smartphone, in response to detecting an occurrence of audio anomaly.

公开(公告)号：US11282533B2

公开(公告)日：2022-03-22

申请号：US17281006

申请日：2019-09-26

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Yuanxing Ma

IPC: G10L21/034 ,  G10L21/0364 ,  G10L25/18 ,  G10L25/21 ,  G10L25/51 ,  H03G9/18

Abstract: The present application relates to a method, system, and computer program product of dynamically adjusting thresholds of a compressor responsive to an input audio signal. A scene switch analyzer receives an input audio signal having a plurality of frequency band components. The scene switch analyzer determines whether a scene switch has occurred in the input audio signal. The frequency band components of the input audio signal are processed. In response to determine that scene switch has not occurred, a distortion audibility system applies slow smoothing to compressor thresholds of the frequency band components. In response to determine that scene switch has occurred, the distortion audibility system applies fast smoothing or no smoothing to the compressor thresholds of the frequency band components.