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1. WO2022120082 - INSERTION OF FORCED GAPS FOR PERVASIVE LISTENING

Publication Number WO/2022/120082
Publication Date 09.06.2022
International Application No. PCT/US2021/061658
International Filing Date 02.12.2021
Chapter 2 Demand Filed 29.09.2022
IPC
H04S 7/00 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
SSTEREOPHONIC SYSTEMS
7Indicating arrangements; Control arrangements, e.g. balance control
G10L 21/0216 2013.1
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
02Speech enhancement, e.g. noise reduction or echo cancellation
0208Noise filtering
0216characterised by the method used for estimating noise
CPC
G10L 21/0216
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
02Speech enhancement, e.g. noise reduction or echo cancellation
0208Noise filtering
0216characterised by the method used for estimating noise
H04R 2227/005
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2227Details of public address [PA] systems covered by H04R27/00 but not provided for in any of its subgroups
005Audio distribution systems for home, i.e. multi-room use
H04S 2400/01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
SSTEREOPHONIC SYSTEMS 
2400Details of stereophonic systems covered by H04S but not provided for in its groups
01Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
H04S 7/301
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
SSTEREOPHONIC SYSTEMS 
7Indicating arrangements; Control arrangements, e.g. balance control
30Control circuits for electronic adaptation of the sound field
301Automatic calibration of stereophonic sound system, e.g. with test microphone
Applicants
  • DOLBY LABORATORIES LICENSING CORPORATION [US]/[US]
Inventors
  • HINES, Christopher Graham
  • SOUTHWELL, Benjamin John
Agents
  • TANASE, Iuliana
  • ANDERSEN, Robert L.
  • BROWN, Tyrome Y.
  • ESTES, Ernest L.
  • HOGLUND, Heath W.
  • KONSTANTINIDES, Konstantinos
  • MA, Xin
  • PURTILL, Elizabeth
  • YON, Sanghyok
  • ZHANG, Yiming
  • KELLOGG, David C.
  • KRATZ, Diane Gabl
  • DOLBY INTERNATIONAL AB PATENT GROUP EUROPE
  • AWA SWEDEN AB
Priority Data
63/120,88703.12.2020US
63/201,56104.05.2021US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) INSERTION OF FORCED GAPS FOR PERVASIVE LISTENING
(FR) INSERTION DE TROUS CONTRAINTS POUR UNE ÉCOUTE PERVASIVE
Abstract
(EN) An attenuation or "gap" may be inserted into at least a first frequency range of at least first and second audio playback signals of a content stream during at least a first time interval to generate at least first and second modified audio playback signals. Corresponding audio device playback sound may be provided by at least first and second audio devices. At least one microphone may detect at least the first audio device playback sound and the second audio device playback sound and may generate corresponding microphone signals. Audio data may be extracted from the microphone signals in at least the first frequency range, to produce extracted audio data. A far-field audio environment impulse response and/or audio environment noise may be estimated based, at least in part, on the extracted audio data.
(FR) Selon l'invention, une atténuation ou un "trou" peut être inséré dans au moins une première gamme de fréquences d'au moins les premier et deuxième signaux de lecture audio d'un flux de contenu pendant au moins un premier intervalle de temps pour générer au moins les premier et deuxième signaux de lecture audio modifiés. Le son correspondant à la lecture du dispositif audio peut être fourni par au moins un premier et un deuxième dispositifs audio. Au moins un microphone peut détecter au moins le son de lecture du premier dispositif audio et le son de lecture du second dispositif audio et peut générer des signaux de microphone correspondants. Les données audio peuvent être extraites des signaux du microphone dans au moins la première gamme de fréquences, pour produire des données audio extraites. Une réponse impulsionnelle de l'environnement audio en champ lointain et/ou le bruit de l'environnement audio peuvent être estimés, au moins en partie, sur la base des données audio extraites.
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