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1. (WO2017061023) AUDIO SIGNAL PROCESSING METHOD AND DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2017/061023 International Application No.: PCT/JP2015/078708
Publication Date: 13.04.2017 International Filing Date: 09.10.2015
IPC:
G10L 21/0308 (2013.01) ,G10L 21/0272 (2013.01) ,H04R 3/00 (2006.01)
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
L
SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
21
Processing 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
02
Speech enhancement, e.g. noise reduction or echo cancellation
0272
Voice signal separating
0308
characterised by the type of parameter measurement, e.g. correlation techniques, zero crossing techniques or predictive techniques
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
L
SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
21
Processing 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
02
Speech enhancement, e.g. noise reduction or echo cancellation
0272
Voice signal separating
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
3
Circuits for transducers
Applicants:
株式会社日立製作所 HITACHI, LTD. [JP/JP]; 東京都千代田区丸の内一丁目6番6号 6-6, Marunouchi 1-chome, Chiyoda-ku, Tokyo 1008280, JP
Inventors:
高島 遼一 TAKASHIMA Ryoichi; JP
川口 洋平 KAWAGUCHI Yohei; JP
住吉 貴志 SUMIYOSHI Takashi; JP
戸上 真人 TOGAMI Masahito; JP
Agent:
戸田 裕二 TODA Yuji; JP
Priority Data:
Title (EN) AUDIO SIGNAL PROCESSING METHOD AND DEVICE
(FR) PROCÉDÉ ET DISPOSITIF DE TRAITEMENT DE SIGNAL AUDIO
(JA) 音声信号処理方法および装置
Abstract:
(EN) The present invention provides an audio signal processing device and method which separate sounds from respective sound sources, even when the sounds which have been recorded asynchronously by a plurality of devices are input. The audio signal processing device instructs each of the plurality of devices to output reference signals of different frequencies, receives the reference signals respectively output from speakers of the plurality of devices according to the instruction, receives audio signals in which the reference signals that had been respectively output from the speakers of the plurality of devices have been input to microphones of the plurality of devices, calculates time shift amounts for the respective devices from the received reference signals having been respectively output from the speakers and the received audio signals, and separates the plurality of audio signals input to the microphones of the plurality of devices, on the basis of the calculated time shift amounts.
(FR) La présente invention concerne un dispositif et un procédé de traitement de signal audio, qui séparent des sons provenant de sources sonores respectives, même lorsque des sons qui ont été enregistrés de manière asynchrone par une pluralité de dispositifs sont entrés. Le dispositif de traitement de signal audio ordonne à chaque dispositif de la pluralité de dispositifs de délivrer des signaux de référence de différentes fréquences, reçoit les signaux de référence respectivement délivrés depuis des haut-parleurs de la pluralité de dispositifs selon l'instruction, reçoit des signaux audio dans lesquels les signaux de référence qui ont été respectivement délivrés depuis les haut-parleurs de la pluralité de dispositifs ont été entrés dans des microphones de la pluralité de dispositifs, calcule des amplitudes de décalage temporel pour les dispositifs respectifs à partir des signaux de référence reçus, ayant été respectivement délivrés depuis les haut-parleurs, et des signaux audio reçus, et sépare la pluralité de signaux audio entrés dans les microphones de la pluralité de dispositifs, sur la base des amplitudes de décalage temporel calculées.
(JA) 複数のデバイスが非同期で収録した音を入力とする場合であっても、各音源の音を分離する音声信号処理装置および方法を提供することにある。 複数のデバイスごとに、異なる周波数の参照信号を出力するよう指示し、前記指示に応じて、前記複数のデバイスのスピーカから出力された各参照信号を受信し、前記複数のデバイスのスピーカから出力された各参照信号が、前記複数のデバイスのマイクに入力された音声信号を受信し、前記受信した前記スピーカから出力された各参照信号と、前記受信した音声信号とから、前記デバイスごとの時間シフト量を算出し、前記算出された時間シフト量に基づいて、前記複数のデバイスのマイクに入力された複数の音声信号を分離する。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)