Processing

Please wait...

Settings

Settings

Goto Application

1. WO2009044872 - AUDIO PROCESSING SYSTEM

Publication Number WO/2009/044872
Publication Date 09.04.2009
International Application No. PCT/JP2008/068078
International Filing Date 03.10.2008
IPC
H04R 3/02 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
3Circuits for transducers
02for preventing acoustic reaction
H04B 3/23 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
3Line transmission systems
02Details
20Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
23using a replica of transmitted signal in the time domain, e.g. echo cancellers
H04M 3/56 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
3Automatic or semi-automatic exchanges
42Systems providing special services or facilities to subscribers
56Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
H04R 1/40 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers
20Arrangements for obtaining desired frequency or directional characteristics
32for obtaining desired directional characteristic only
40by combining a number of identical transducers
CPC
H04M 3/002
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
3Automatic or semi-automatic exchanges
002Applications of echo suppressors or cancellers in telephonic connections
H04M 3/56
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
3Automatic or semi-automatic exchanges
42Systems providing special services or facilities to subscribers
56Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
H04R 1/403
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
20Arrangements for obtaining desired frequency or directional characteristics
32for obtaining desired directional characteristic only
40by combining a number of identical transducers
403loud-speakers
H04R 1/406
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
20Arrangements for obtaining desired frequency or directional characteristics
32for obtaining desired directional characteristic only
40by combining a number of identical transducers
406microphones
H04R 3/005
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
3Circuits for transducers ; , loudspeakers or microphones
005for combining the signals of two or more microphones
Applicants
  • ヤマハ株式会社 YAMAHA CORPORATION [JP]/[JP] (AllExceptUS)
  • 石橋 利晃 ISHIBASHI, Toshiaki (UsOnly)
Inventors
  • 石橋 利晃 ISHIBASHI, Toshiaki
Agents
  • 古館 久丹子 FURUDATE, Kuniko
Priority Data
2007-26189705.10.2007JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) AUDIO PROCESSING SYSTEM
(FR) SYSTÈME DE TRAITEMENT AUDIO
(JA) 音声処理システム
Abstract
(EN)
A speaker system has a structure formed by sound emission/collection devices (100-105) connected by a transmission line LT. The sound emission/collection devices (100-105) are set to a master and slaves. The master sound emission/collection device (100) generates a reference clock, which is supplied to the slave sound emission/collection devices (101-105). The slave sound emission/collection devices (101-105) form a sound collection beam signal in synchronization with the reference clock signal and output the signal to the master sound emission/collection device (100) without performing an acoustic coupling/suppression process. The master sound emission/collection device (100) integrates execution of the acoustic coupling/suppression process of the respective sound collection beam signals and generates a sound signal to be emitted. The master sound emission/collection device (100) outputs the broadcast sound signal to the slave sound emission/collection devices (101-105). Each of the slave sound emission/collection devices (101-105) emits a sound according to the broadcast sound signal.
(FR)
Un système de haut-parleur a une structure formée par des dispositifs d'émission et de réception acoustiques (100-105) connectés par une ligne de transmission LT. Les dispositifs d'émission et de réception acoustiques (100-105) sont définis comme maître et esclaves. Le dispositif d'émission et de réception acoustique maître (100) génère une horloge de référence, qui est fournie aux dispositifs d'émission et de réception acoustiques esclaves (101-105). Les dispositifs d'émission et de réception acoustiques esclaves (101-105) forment un signal de faisceau de réception acoustique en synchronisation avec le signal d'horloge de référence et transmettent le signal au dispositif d'émission et de réception acoustique maître (100) sans effectuer de processus de couplage/suppression acoustique. Le dispositif d'émission et de réception acoustique maître (100) intègre l'exécution du processus de couplage/suppression acoustique des signaux de faisceau de réception acoustique respectifs et génère un signal acoustique à émettre. Le dispositif d'émission et de réception acoustique maître (100) transmet le signal acoustique de diffusion aux dispositifs d'émission et de réception acoustiques esclaves (101-105). Chacun des dispositifs d'émission et de réception acoustiques esclaves (101-105) émet un son en fonction du signal acoustique de diffusion.
(JA)
 拡声システムは、放収音装置100~105が伝送ラインLTにより接続される構造からなる。放収音装置100~105は、マスタとスレーブとに設定される。マスタ放収音装置100は、基準クロック信号を発生し、スレーブ放収音装置101~105へ与える。スレーブ放収音装置101~105は、基準クロック信号に同期して収音ビーム信号を形成し、音響結合抑圧処理を行うことなくマスタ放収音装置100へ出力する。マスタ放収音装置100は、各収音ビーム信号の音響結合抑圧処理を一元的に実行して放音用音声信号を生成する。マスタ放収音装置100は、スレーブ放収音装置101~105へ放音用音声信号を出力し、各スレーブ放収音装置101~105は、放音用音声信号に基づいて放音する。
Latest bibliographic data on file with the International Bureau