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1. WO2018022222 - FAR-FIELD AUDIO PROCESSING

Publication Number WO/2018/022222
Publication Date 01.02.2018
International Application No. PCT/US2017/038581
International Filing Date 21.06.2017
Chapter 2 Demand Filed 09.04.2018
IPC
G10L 21/0208 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
H04R 3/00 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
3Circuits for transducers
G10L 15/08 2006.1
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
15Speech recognition
08Speech classification or search
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 15/08
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
15Speech recognition
08Speech classification or search
G10L 15/20
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
15Speech recognition
20Speech recognition techniques specially adapted for robustness in adverse environments, e.g. in noise, of stress induced speech
G10L 15/22
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
15Speech recognition
22Procedures used during a speech recognition process, e.g. man-machine dialogue
G10L 2015/088
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
15Speech recognition
08Speech classification or search
088Word spotting
G10L 2015/223
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
15Speech recognition
22Procedures used during a speech recognition process, e.g. man-machine dialogue
223Execution procedure of a spoken command
G10L 2021/02166
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
02161Number of inputs available containing the signal or the noise to be suppressed
02166Microphone arrays; Beamforming
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • KIM, Lae-Hoon
  • VISSER, Erik
  • MOHAMMAD, Asif
  • LIU, Ian Ernan
  • JIANG, Ye
Agents
  • TOLER, Jeffrey G.
  • MOORE, JASON L.
  • MOORE, Jason, L.
Priority Data
15/387,41121.12.2016US
62/368,49929.07.2016US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) FAR-FIELD AUDIO PROCESSING
(FR) TRAITEMENT AUDIO EN CHAMP LOINTAIN
Abstract
(EN) An apparatus includes multiple microphones to generate audio signals based on sound of a far-field acoustic environment. The apparatus also includes a signal processing system to process the audio signals to generate at least one processed audio signal. The signal processing system is configured to update one or more processing parameters while operating in a first operational mode and is configured to use a static version of the one or more processing parameters while operating in the second operational mode. The apparatus further includes a keyword detection system to perform keyword detection based on the at least one processed audio signal to determine whether the sound includes an utterance corresponding to a keyword and, based on a result of the keyword detection, to send a control signal to the signal processing system to change an operational mode of the signal processing system.
(FR) L'invention concerne un appareil comprenant de multiples microphones pour générer des signaux audio sur la base du son d'un environnement acoustique en champ lointain. L'appareil comprend également un système de traitement de signal pour traiter les signaux audio pour générer au moins un signal audio traité. Le système de traitement de signal est configuré pour mettre à jour un ou plusieurs paramètres de traitement lorsqu'il fonctionne dans un premier mode de fonctionnement et est configuré pour utiliser une version statique desdits paramètres de traitement lorsqu'il fonctionne dans le second mode de fonctionnement. L'appareil comprend en outre un système de détection de mot-clé pour effectuer une détection de mot-clé sur la base desdits signaux audio traités pour déterminer si le son comprend un énoncé correspondant à un mot-clé et, sur la base d'un résultat de la détection de mot-clé, pour envoyer un signal de commande au système de traitement de signal pour modifier un mode de fonctionnement du système de traitement de signal.
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