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1. WO2018229821 - 信号処理装置、遠隔会議装置、および信号処理方法

公開番号 WO/2018/229821
公開日 20.12.2018
国際出願番号 PCT/JP2017/021616
国際出願日 12.06.2017
IPC
H04R 3/02 2006.1
H電気
04電気通信技術
Rスピーカ,マイクロホン,蓄音機ピックアップまたは類似の音響電気機械変換器;補聴器;パブリックアドレスシステム
3変換器のための回路
02音響的反作用の防止のためのもの
H04R 3/00 2006.1
H電気
04電気通信技術
Rスピーカ,マイクロホン,蓄音機ピックアップまたは類似の音響電気機械変換器;補聴器;パブリックアドレスシステム
3変換器のための回路
CPC
G10L 2021/02082
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
02082the noise being echo, reverberation of the speech
G10L 21/02
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
G10L 21/0232
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
0232Processing in the frequency domain
G10L 21/0264
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
0264characterised by the type of parameter measurement, e.g. correlation techniques, zero crossing techniques or predictive techniques
G10L 21/0272
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
0272Voice signal separating
G10L 21/0316
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
0316by changing the amplitude
出願人
  • ヤマハ株式会社 YAMAHA CORPORATION [JP]/[JP]
発明者
  • 川合 窒登 KAWAI Tetsuto
  • 金森 光平 KANAMORI Kohei
  • 井上 貴之 INOUE Takayuki
代理人
  • 特許業務法人 楓国際特許事務所 KAEDE PATENT ATTORNEYS' OFFICE
優先権情報
公開言語 (言語コード) 日本語 (ja)
出願言語 (言語コード) 日本語 (JA)
指定国 (国コード)
発明の名称
(EN) SIGNAL PROCESSING DEVICE, TELECONFERENCING DEVICE, AND SIGNAL PROCESSING METHOD
(FR) DISPOSITIF DE TRAITEMENT DE SIGNAL, DISPOSITIF DE RÉALISATION DE TÉLÉCONFÉRENCE ET PROCÉDÉ DE TRAITEMENT DE SIGNAL
(JA) 信号処理装置、遠隔会議装置、および信号処理方法
要約
(EN) A signal processing device is provided with a first microphone, a second microphone and a signal processing unit. The signal processing unit performs echo removal processing for at least one of a collected sound signal of the first microphone and a collected sound signal of the second microphone, and determines, using signals after echo has been removed by the echo removal processing, a correlated component between the collected sound signal of the first microphone and the collected sound signal of the second microphone.
(FR) L’invention concerne un dispositif de traitement de signal doté d’un premier microphone, d’un deuxième microphone et d’une unité de traitement de signal. L’unité de traitement de signal exécute un traitement d’élimination d’écho pour au moins un signal parmi un signal sonore collecté sur le premier microphone et un signal sonore collecté sur le deuxième microphone, puis détermine, en utilisant les signaux sur lesquels l’écho a été éliminé par le traitement d’élimination d’écho, une composante corrélée entre le signal sonore collecté sur le premier microphone et le signal sonore collecté sur le deuxième microphone.
(JA) 信号処理装置は、第1マイクと、第2マイクと、信号処理部と、を備えている。信号処理部は、前記第1マイクの収音信号または前記第2マイクの収音信号の少なくともいずれかに対して、エコー除去処理を行ない、該エコー除去処理でエコーを除去した後の信号を用いて、前記第1マイクの収音信号および前記第2マイクの収音信号の相関成分を求める。
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