JP2001119470A5 - - Google Patents

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JP2001119470A5
JP2001119470A5 JP1999294007A JP29400799A JP2001119470A5 JP 2001119470 A5 JP2001119470 A5 JP 2001119470A5 JP 1999294007 A JP1999294007 A JP 1999294007A JP 29400799 A JP29400799 A JP 29400799A JP 2001119470 A5 JP2001119470 A5 JP 2001119470A5
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signal
telephone
voice
microphone
level
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JP1999294007A
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JP2001119470A (en
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Priority to JP29400799A priority Critical patent/JP2001119470A/en
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【特許請求の範囲】
【請求項1】 ハンズフリー電話機に用いられ、該電話機の送話信号に混入するエコーを除去する電話音声処理装置において、
話者の発声音量を検出する発声音量検出手段と、
該発声音量検出手段により検出された発声音量に応じて前記送話信号のレべルを調整する送話レべル調整手段とを備え
前記発声音量検出手段が、受話信号に通話相手側の発声音声が含まれない時に話者の発声音量を検出するものであることを特徴とする電話音声処理装置。
【請求項2】 ハンズフリー電話機に用いられ、該電話機の送話信号に混入するエコーを除去する電話音声処理装置において、
前記受話信号から相手先の発声の音量に対応する受話音量を検出する受話音量検出手段と、
該受話音量検出手段により検出された受話音量に応じて前記受話音声信号の再生音量レべルを調整する受話レべル調整手段とを備え
前記受話音量検出手段が、通話開始時に受話音量を検出するものであることを特徴とする請求項1記載の電話音声処理装置。
【請求項】 車室内に設置されたマイクに入力された音声を相手先に送信し、相手先の音声を車室内に設置されたスピーカから再生するハンズフリー電話機に用いられ、該電話機の受話信号を遅延処理すると共にレべル調整を行って得られたエコーキャンセル信号を、前記マイクの入力信号に合成して送話信号を形成することにより、前記スピーカから再生された受話音声信号が前記マイクに入力されることにより送話信号に混入するエコーを除去する車載用の電話音声処理装置において、
車両の車種を検出する車種検出手段と、
該車種検出手段により検出された車種に応じて前記エコーキャンセル信号の生成条件を設定する条件設定手段とを備えていることを特徴とする電話音声処理装置。
【請求項】 車室内に設置されたマイクに入力された音声を相手先に送信し、相手先の音声を車室内に設置されたスピーカから再生するハンズフリー電話機に用いられ、該電話機の受話信号を遅延処理すると共にレべル調整を行って得られたエコーキャンセル信号を、前記マイクの入力信号に合成して送話信号を形成することにより、前記スピーカから再生された受話音声信号が前記マイクに入力されることにより送話信号に混入するエコーを除去する車載用の電話音声処理装置において、
前記マイクへの入力信号から車両の走行に伴い発生する車両ノイズの周波数帯域の信号を除去する車両ノイズフィルタと、
前記車両ノイズのレべルを検出する車両ノイズレべル検出手段と、
該車両ノイズレべル検出手段により検出された車両ノイズレべルに応じて前記車両ノイズフィルタの動作条件を設定する動作条件設定手段とを備えていることを特徴とする電話音声処理装置。
【請求項】 車室内に設置されたマイクに入力された音声を相手先に送信し、相手先の音声を車室内に設置されたスピーカから再生するハンズフリー電話機に用いられ、該電話機の受話信号を遅延処理すると共にレべル調整を行って得られたエコーキャンセル信号を、前記マイクの入力信号に合成して送話信号を形成することにより、前記スピーカから再生された受話音声信号が前記マイクに入力されることにより送話信号に混入するエコーを除去する車載用の電話音声処理装置において、
前記マイクからの出力信号のレベルを調整し、前記スピーカへの出力信号レべルより小さくなるようにするマイク出力調整手段を備えていることを特徴とする電話音声処理装置。
【請求項】 車室内に設置されたマイクに入力された音声を相手先に送信し、相手先の音声を車室内に設置されたスピーカから再生するハンズフリー電話機に用いられ、該電話機の受話信号を遅延処理すると共にレべル調整を行って得られたエコーキャンセル信号を、前記マイクの入力信号に合成して送話信号を形成することにより、前記スピーカから再生された受話音声信号が前記マイクに入力されることにより送話信号に混入するエコーを除去する車載用の電話音声処理装置において、
前記電話機の送話信号を遅延処理すると共にレべル調整を行って得られた送話エコーキャンセル信号を、前記受話信号に合成することにより、前記送話信号が前記受話信号に混入することにより発生するエコーを除去する送話信号処理手段と、
操作者の操作に応じて前記送話信号処理手段の動作・非動作を切り換える動作切換手段とを備えていることを特徴とする電話音声処理装置。
【請求項】 車室内に設置されたマイクに入力された音声を相手先に送信し、相手先の音声を車室内に設置されたスピーカから再生するハンズフリー電話機に用いられ、該電話機の受話信号を遅延処理すると共にレべル調整を行って得られたエコーキャンセル信号を、前記マイクの入力信号に合成して送話信号を形成することにより、前記スピーカから再生された受話音声信号が前記マイクに入力されることにより送話信号に混入するエコーを除去する車載用の電話音声処理装置において、
通話が片方向通話かどうかを検出する片方向通話検出手段と、
該片方向通話検出手段により片方向通話が検出されたときにはエコーの除去処理を停止するエコー除去処理停止手段とを備えていることを特徴とする電話音声処理装置。
【請求項】 車室内に設置されたマイクに入力された音声を相手先に送信し、相手先の音声を車室内に設置されたスピーカから再生するハンズフリー電話機に用いられ、該電話機の受話信号を遅延処理すると共にレべル調整を行って得られたエコーキャンセル信号を、前記マイクの入力信号に合成して送話信号を形成することにより、前記スピーカから再生された受話音声信号が前記マイクに入力されることにより送話信号に混入するエコーを除去する車載用の電話音声処理装置において、
前記電話機の受信信号の電界強度を検出する電界強度検出手段と、
該電界強度検出手段により検出された電界強度に応じて前記送話信号のレベルを調整する送話レベル調整手段とを備えていることを特徴とする電話音声処理装置。
【請求項】 車室内に設置されたマイクに入力された音声を相手先に送信し、相手先の音声を車室内に設置されたスピーカから再生するハンズフリー電話機に用いられ、該電話機の受話信号を遅延処理すると共にレべル調整を行って得られたエコーキャンセル信号を、前記マイクの入力信号に合成して送話信号を形成することにより、前記スピーカから再生された受話音声信号が前記マイクに入力されることにより送話信号に混入するエコーを除去する車載用の電話音声処理装置において、
前記電話機の受信信号の電界強度を検出する電界強度検出手段と、
該電界強度検出手段により検出された電界強度に応じて前記受話信号のレベルを調整する受話レベル調整手段とを備えていることを特徴とする電話音声処理装置。
[Claims]
[Claim 1] In a telephone voice processing device used for a hands-free telephone and removing an echo mixed in a transmission signal of the telephone.
Vocalization volume detecting means for detecting the vocalization volume of the speaker,
The utterance level adjusting means for adjusting the level of the utterance signal according to the utterance volume detected by the utterance volume detecting means is provided.,
The utterance volume detecting means detects the utterance volume of the speaker when the received signal does not include the utterance voice of the other party.A telephone voice processing device characterized by the fact that.
2. In a telephone voice processing device used for a hands-free telephone and removing an echo mixed in a transmission signal of the telephone.
A receiving volume detecting means for detecting the receiving volume corresponding to the volume of the other party's utterance from the receiving signal, and
It is provided with a receiving level adjusting means for adjusting the reproduction volume level of the received voice signal according to the receiving volume detected by the receiving volume detecting means.,
The earpiece volume detecting means detects the earpiece volume at the start of a call.The telephone voice processing device according to claim 1.
Claim3] It is used for hands-free telephones that transmit the voice input to the microphone installed in the vehicle interior to the other party and reproduce the voice of the other party from the speaker installed in the vehicle interior, and delay processing the received signal of the telephone. The echo cancel signal obtained by adjusting the level is combined with the input signal of the microphone to form a transmission signal, so that the received voice signal reproduced from the speaker is input to the microphone. In an in-vehicle telephone voice processing device that removes echoes mixed in a transmitted signal by this
Vehicle type detection means for detecting the vehicle type and
A telephone voice processing device including a condition setting means for setting a condition for generating an echo cancel signal according to a vehicle type detected by the vehicle type detecting means.
Claim4] It is used for hands-free telephones that transmit the voice input to the microphone installed in the vehicle interior to the other party and reproduce the voice of the other party from the speaker installed in the vehicle interior, and delay processing the received signal of the telephone. The echo cancel signal obtained by adjusting the level is combined with the input signal of the microphone to form a transmission signal, so that the received voice signal reproduced from the speaker is input to the microphone. In an in-vehicle telephone voice processing device that removes echoes mixed in a transmitted signal by this
A vehicle noise filter that removes signals in the frequency band of vehicle noise generated as the vehicle travels from the input signal to the microphone, and
A vehicle noise level detecting means for detecting the vehicle noise level, and
A telephone voice processing device including an operating condition setting means for setting operating conditions of the vehicle noise filter according to the vehicle noise level detected by the vehicle noise level detecting means.
Claim5] It is used for hands-free telephones that transmit the voice input to the microphone installed in the vehicle interior to the other party and reproduce the voice of the other party from the speaker installed in the vehicle interior, and delay processing the received signal of the telephone. The echo cancel signal obtained by adjusting the level is combined with the input signal of the microphone to form a transmission signal, so that the received voice signal reproduced from the speaker is input to the microphone. In an in-vehicle telephone voice processing device that removes echoes mixed in a transmitted signal by this
A telephone voice processing device including a microphone output adjusting means for adjusting the level of an output signal from the microphone so as to be smaller than the output signal level to the speaker.
Claim6] It is used for hands-free telephones that transmit the voice input to the microphone installed in the vehicle interior to the other party and reproduce the voice of the other party from the speaker installed in the vehicle interior, and delay processing the received signal of the telephone. The echo cancel signal obtained by adjusting the level is combined with the input signal of the microphone to form a transmission signal, so that the received voice signal reproduced from the speaker is input to the microphone. In an in-vehicle telephone voice processing device that removes echoes mixed in a transmitted signal by this
By synthesizing the transmission echo cancel signal obtained by delay processing the transmission signal of the telephone and adjusting the level with the reception signal, the transmission signal is mixed with the reception signal. A transmission signal processing means that removes the generated echo,
A telephone voice processing device including an operation switching means for switching between operation and non-operation of the transmitted signal processing means according to an operation of an operator.
Claim7] It is used for hands-free telephones that transmit the voice input to the microphone installed in the vehicle interior to the other party and reproduce the voice of the other party from the speaker installed in the vehicle interior, and delay processing the received signal of the telephone. The echo cancel signal obtained by adjusting the level is combined with the input signal of the microphone to form a transmission signal, so that the received voice signal reproduced from the speaker is input to the microphone. In an in-vehicle telephone voice processing device that removes echoes mixed in a transmitted signal by this
One-way call detection means to detect whether the call is a one-way call,
A telephone voice processing device including an echo removal processing stop means for stopping an echo removal process when a one-way call is detected by the one-way call detection means.
Claim8] It is used for hands-free telephones that transmit the voice input to the microphone installed in the vehicle interior to the other party and reproduce the voice of the other party from the speaker installed in the vehicle interior, and delay processing the received signal of the telephone. The echo cancel signal obtained by adjusting the level is combined with the input signal of the microphone to form a transmission signal, so that the received voice signal reproduced from the speaker is input to the microphone. In an in-vehicle telephone voice processing device that removes echoes mixed in a transmitted signal by this
An electric field strength detecting means for detecting the electric field strength of the received signal of the telephone, and
A telephone voice processing device including a transmission level adjusting means for adjusting the level of the transmission signal according to the electric field strength detected by the electric field strength detecting means.
Claim9] It is used for hands-free telephones that transmit the voice input to the microphone installed in the vehicle interior to the other party and reproduce the voice of the other party from the speaker installed in the vehicle interior, and delay processing the received signal of the telephone. The echo cancel signal obtained by adjusting the level is combined with the input signal of the microphone to form a transmission signal, so that the received voice signal reproduced from the speaker is input to the microphone. In an in-vehicle telephone voice processing device that removes echoes mixed in a transmitted signal by this
An electric field strength detecting means for detecting the electric field strength of the received signal of the telephone, and
A telephone voice processing device including a receiving level adjusting means for adjusting the level of the received signal according to the electric field strength detected by the electric field strength detecting means.

JP29400799A 1999-10-15 1999-10-15 Telephone voice processor Pending JP2001119470A (en)

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Application Number Priority Date Filing Date Title
JP29400799A JP2001119470A (en) 1999-10-15 1999-10-15 Telephone voice processor

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Application Number Priority Date Filing Date Title
JP29400799A JP2001119470A (en) 1999-10-15 1999-10-15 Telephone voice processor

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JP2001119470A JP2001119470A (en) 2001-04-27
JP2001119470A5 true JP2001119470A5 (en) 2006-11-30

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4330302B2 (en) 2001-09-27 2009-09-16 日産自動車株式会社 Audio input / output device
US7813771B2 (en) 2005-01-06 2010-10-12 Qnx Software Systems Co. Vehicle-state based parameter adjustment system
JP2008092269A (en) 2006-10-02 2008-04-17 Matsushita Electric Ind Co Ltd Hands-free communication device
JP5024010B2 (en) * 2007-12-10 2012-09-12 ヤマハ株式会社 Audio conferencing system
JP2011066668A (en) * 2009-09-17 2011-03-31 Brother Industries Ltd Echo canceler, echo canceling method, and program of echo canceler
JP7084899B2 (en) * 2019-09-26 2022-06-15 本田技研工業株式会社 In-vehicle device

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