To provide an "in-vehicle communication support system" for canceling an unnecessary sound and relaying an utterance voice.SOLUTION: A first variable filter 31 generates a cancel sound for canceling a sound of a second seat audio source 1 at a first seat using the sound of the second seat audio source 1 as an input. Transfer functions of the first variable filter 31 and a second variable filter 36 are updated so as to minimize a level of a signal Eu obtained by subtracting an output of an auxiliary filter 35 for generating a correction signal for correcting a difference between positions of a first seat microphone 9 and the first seat and an output of the second variable filter 36 using the sound of the first seat audio source 2 as an input from an output of the first seat microphone 9. During a period when the level of the signal Eu exceeds a threshold value, the signal Eu is relayed to the second seat as an utterance voice.SELECTED DRAWING: Figure 3

    【課題】不要音をキャンセルし発話音声を中継する「車内コミュニケーション支援システム」を提供する。【解決手段】第1可変フィルタ31は第2席オーディオソース1の音を入力として第2席オーディオソース1の音を第1席でキャンセルするキャンセル音を生成する。第1席マイク9の出力から、第1席マイク9と第1席の位置の差を補正する補正信号を生成する補助フィルタ35の出力と、第1席オーディオソース2の音を入力とする第2可変フィルタ36の出力とを減じた信号Euのレベルが最小になるように、第1可変フィルタ31と第2可変フィルタ36の伝達関数は更新される。信号Euのレベルがしきい値を超えている期間、信号Euを発話音声として第2席に中継する。【選択図】図3


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    Title :

    IN-VEHICLE COMMUNICATION SUPPORT SYSTEM


    Additional title:

    車内コミュニケーション支援システム


    Contributors:

    Publication date :

    2022-01-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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