VOICE COLLECTION DEVICE
To provide a voice collection device capable of further improving quality of a voice signal based on a vibration signal generated by a vibration sensor under an environment where an echo component of a communication partner's voice may be superimposed on a user's voice signal.SOLUTION: A m...
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| creator | YAMABE TAKAO |
| description | To provide a voice collection device capable of further improving quality of a voice signal based on a vibration signal generated by a vibration sensor under an environment where an echo component of a communication partner's voice may be superimposed on a user's voice signal.SOLUTION: A microphone 1 generates a first voice signal. An echo canceller 20 suppresses an echo component superimposed on the first voice signal by collecting voice reproduced by a speaker 16 from a second voice signal transmitted from a communication partner and received via a line 11 by the microphone 1. An adaptive filter 6 multiplies a vibration signal generated by a vibration sensor 3 by a coefficient thereby to generate a conversion voice signal so as to allow the vibration signal to be closer to a target signal which is the voice signal to be output from the echo canceller 20. An adaptive control section 5 performs control to update the coefficient by which the vibration signal is multiplied by the adaptive filter 6 so as to allow a residual signal being a difference between a target signal to be generated by a subtractor 7 and the conversion voice signal to be smaller.SELECTED DRAWING: Figure 1
【課題】ユーザの音声信号に通信相手の音声のエコー成分が重畳することがある環境下において、振動センサが生成する振動信号に基づく音声信号の品質をより向上させることができる収音装置を提供する。【解決手段】マイクロフォン１は第１の音声信号を生成する。エコーキャンセラ２０は、通信相手から送信されて回線１１を介して受信した第２の音声信号がスピーカ１６によって再生された音声をマイクロフォン１が収音することによって第１の音声信号に重畳したエコー成分を抑制する。適応フィルタ６は、振動センサ３が生成する振動信号を、エコーキャンセラ２０より出力される音声信号である目標信号に近付けるように、振動信号に係数を乗算して変換音声信号を生成する。適応制御部５は、適応フィルタ６が振動信号に乗算する係数を、減算器７が生成する目標信号と変換音声信号との差分である残差信号が小さくなるように更新するよう制御する。【選択図】図１ |
| format | Patent |
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【課題】ユーザの音声信号に通信相手の音声のエコー成分が重畳することがある環境下において、振動センサが生成する振動信号に基づく音声信号の品質をより向上させることができる収音装置を提供する。【解決手段】マイクロフォン１は第１の音声信号を生成する。エコーキャンセラ２０は、通信相手から送信されて回線１１を介して受信した第２の音声信号がスピーカ１６によって再生された音声をマイクロフォン１が収音することによって第１の音声信号に重畳したエコー成分を抑制する。適応フィルタ６は、振動センサ３が生成する振動信号を、エコーキャンセラ２０より出力される音声信号である目標信号に近付けるように、振動信号に係数を乗算して変換音声信号を生成する。適応制御部５は、適応フィルタ６が振動信号に乗算する係数を、減算器７が生成する目標信号と変換音声信号との差分である残差信号が小さくなるように更新するよう制御する。【選択図】図１</description><language>eng ; jpn</language><subject>DEAF-AID SETS ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS ; PUBLIC ADDRESS SYSTEMS</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230731&DB=EPODOC&CC=JP&NR=2023105362A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230731&DB=EPODOC&CC=JP&NR=2023105362A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YAMABE TAKAO</creatorcontrib><title>VOICE COLLECTION DEVICE</title><description>To provide a voice collection device capable of further improving quality of a voice signal based on a vibration signal generated by a vibration sensor under an environment where an echo component of a communication partner's voice may be superimposed on a user's voice signal.SOLUTION: A microphone 1 generates a first voice signal. An echo canceller 20 suppresses an echo component superimposed on the first voice signal by collecting voice reproduced by a speaker 16 from a second voice signal transmitted from a communication partner and received via a line 11 by the microphone 1. An adaptive filter 6 multiplies a vibration signal generated by a vibration sensor 3 by a coefficient thereby to generate a conversion voice signal so as to allow the vibration signal to be closer to a target signal which is the voice signal to be output from the echo canceller 20. An adaptive control section 5 performs control to update the coefficient by which the vibration signal is multiplied by the adaptive filter 6 so as to allow a residual signal being a difference between a target signal to be generated by a subtractor 7 and the conversion voice signal to be smaller.SELECTED DRAWING: Figure 1
【課題】ユーザの音声信号に通信相手の音声のエコー成分が重畳することがある環境下において、振動センサが生成する振動信号に基づく音声信号の品質をより向上させることができる収音装置を提供する。【解決手段】マイクロフォン１は第１の音声信号を生成する。エコーキャンセラ２０は、通信相手から送信されて回線１１を介して受信した第２の音声信号がスピーカ１６によって再生された音声をマイクロフォン１が収音することによって第１の音声信号に重畳したエコー成分を抑制する。適応フィルタ６は、振動センサ３が生成する振動信号を、エコーキャンセラ２０より出力される音声信号である目標信号に近付けるように、振動信号に係数を乗算して変換音声信号を生成する。適応制御部５は、適応フィルタ６が振動信号に乗算する係数を、減算器７が生成する目標信号と変換音声信号との差分である残差信号が小さくなるように更新するよう制御する。【選択図】図１</description><subject>DEAF-AID SETS</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS</subject><subject>PUBLIC ADDRESS SYSTEMS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBAP8_d0dlVw9vfxcXUO8fT3U3BxDQOK8DCwpiXmFKfyQmluBiU31xBnD93Ugvz41OKCxOTUvNSSeK8AIwMjY0MDU2MzI0djohQBAAaBH7Q</recordid><startdate>20230731</startdate><enddate>20230731</enddate><creator>YAMABE TAKAO</creator><scope>EVB</scope></search><sort><creationdate>20230731</creationdate><title>VOICE COLLECTION DEVICE</title><author>YAMABE TAKAO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2023105362A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2023</creationdate><topic>DEAF-AID SETS</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS</topic><topic>PUBLIC ADDRESS SYSTEMS</topic><toplevel>online_resources</toplevel><creatorcontrib>YAMABE TAKAO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>YAMABE TAKAO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>VOICE COLLECTION DEVICE</title><date>2023-07-31</date><risdate>2023</risdate><abstract>To provide a voice collection device capable of further improving quality of a voice signal based on a vibration signal generated by a vibration sensor under an environment where an echo component of a communication partner's voice may be superimposed on a user's voice signal.SOLUTION: A microphone 1 generates a first voice signal. An echo canceller 20 suppresses an echo component superimposed on the first voice signal by collecting voice reproduced by a speaker 16 from a second voice signal transmitted from a communication partner and received via a line 11 by the microphone 1. An adaptive filter 6 multiplies a vibration signal generated by a vibration sensor 3 by a coefficient thereby to generate a conversion voice signal so as to allow the vibration signal to be closer to a target signal which is the voice signal to be output from the echo canceller 20. An adaptive control section 5 performs control to update the coefficient by which the vibration signal is multiplied by the adaptive filter 6 so as to allow a residual signal being a difference between a target signal to be generated by a subtractor 7 and the conversion voice signal to be smaller.SELECTED DRAWING: Figure 1
【課題】ユーザの音声信号に通信相手の音声のエコー成分が重畳することがある環境下において、振動センサが生成する振動信号に基づく音声信号の品質をより向上させることができる収音装置を提供する。【解決手段】マイクロフォン１は第１の音声信号を生成する。エコーキャンセラ２０は、通信相手から送信されて回線１１を介して受信した第２の音声信号がスピーカ１６によって再生された音声をマイクロフォン１が収音することによって第１の音声信号に重畳したエコー成分を抑制する。適応フィルタ６は、振動センサ３が生成する振動信号を、エコーキャンセラ２０より出力される音声信号である目標信号に近付けるように、振動信号に係数を乗算して変換音声信号を生成する。適応制御部５は、適応フィルタ６が振動信号に乗算する係数を、減算器７が生成する目標信号と変換音声信号との差分である残差信号が小さくなるように更新するよう制御する。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS |
| title | VOICE COLLECTION DEVICE |
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