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1. WO2020108555 - AUDIO DATA PROCESSING METHOD, APPARATUS AND DEVICE, AND STORAGE MEDIUM

Publication Number WO/2020/108555
Publication Date 04.06.2020
International Application No. PCT/CN2019/121525
International Filing Date 28.11.2019
IPC
G10L 21/043 2013.01
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
21Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
04Time compression or expansion
043by changing speed
H04N 21/439 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
40Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB ; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
439Processing of audio elementary streams
CPC
G10L 21/043
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
21Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
04Time compression or expansion
043by changing speed
H04N 21/439
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
439Processing of audio elementary streams
Applicants
  • 广州市百果园信息技术有限公司 GUANGZHOU BAIGUOYUAN INFORMATION TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 娄帆 LOU, Fan
Agents
  • 北京品源专利代理有限公司 BEYOND ATTORNEYS AT LAW
Priority Data
201811436053.228.11.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) AUDIO DATA PROCESSING METHOD, APPARATUS AND DEVICE, AND STORAGE MEDIUM
(FR) PROCÉDÉ, APPAREIL ET DISPOSITIF DE TRAITEMENT DE DONNÉES AUDIO ET SUPPORT D'ENREGISTREMENT
(ZH) 音频数据的处理方法、装置、设备及存储介质
Abstract
(EN)
Disclosed are an audio data processing method, apparatus and device, and a storage medium. The method comprises: acquiring audio data to be processed and a speed variation rate of at least one audio frame in the audio data; successively taking the at least one audio frame as the current audio frame to be processed, and converting this current audio frame to a frequency domain; determining a target phase signal of the current audio frame according to a speed variation rate of the current audio frame and a speed variation rate of the previous audio frame; and performing, according to the target phase signal, time domain conversion on the current audio frame converted to the frequency domain so as to obtain the processed current audio frame.
(FR)
Un procédé, un appareil et un dispositif de traitement de données audio ainsi qu'un support d'informations sont divulgués. Le procédé comprend les étapes qui consistent à : acquérir des données audio à traiter et un taux de variation de la vitesse d'au moins une trame audio dans les données audio ; considérer successivement l'au moins une trame audio comme la trame audio courante à traiter, et transposer cette trame audio courante dans un domaine de fréquence ; déterminer un signal de phase cible de la trame audio courante en fonction d'un taux de variation de vitesse de la trame audio courante et d'un taux de variation de vitesse de la trame audio précédente ; et effectuer, en fonction du signal de phase cible, une transposition du domaine temporel sur la trame audio courante transposée dans le domaine de fréquence de façon à obtenir la trame audio courante traitée.
(ZH)
本文公开了音频数据的处理方法、装置、设备及存储介质,该方法包括:获取待处理的音频数据和所述音频数据中至少一个音频帧的变速速率;依次将所述至少一个音频帧作为待处理的当前音频帧,并转换所述当前音频帧到频域,根据所述当前音频帧的变速速率及上一音频帧的变速速率,确定所述当前音频帧的目标相位信号;根据所述目标相位信号,对转换到频域的当前音频帧进行时域转换得到处理后的当前音频帧。
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