SOUND PROCESSING DEVICE AND SOUND PROCESSING METHOD
To determine the orientation of a listener's head with high precision even when drift occurs.SOLUTION: A voice processing device includes a sensor for outputting a detection signal corresponding to the posture of a listener's head, a sensor signal processor for determining a direction in w...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To determine the orientation of a listener's head with high precision even when drift occurs.SOLUTION: A voice processing device includes a sensor for outputting a detection signal corresponding to the posture of a listener's head, a sensor signal processor for determining a direction in which the listener's head faces by calculation based on the detection signal and outputting direction information indicating the direction, a sensor output correction unit for correcting the direction information output from the sensor signal processor based on average information obtained by averaging the direction information, a head transfer function correction unit for modifying a predetermined head transfer function according to the corrected direction information, and a sound image localization processor for performing sound image localization processing on a target sound signal according to the modified head transfer function.SELECTED DRAWING: Figure 1
【課題】ドリフトが発生しても、リスナーの頭部の向きを精度良く求める。【解決手段】音声処理装置は、リスナーの頭部の姿勢に応じた検出信号を出力するセンサーと、検出信号に基づく演算によりリスナーの頭部が向く方向を求めて、当該方向を示す方向情報を出力するセンサー信号処理部と、方向情報を平均化した平均情報に基づいて、センサー信号処理部から出力される方向情報を補正するセンサー出力補正部と、予め求められた頭部伝達関数を、補正された方向情報にしたがって修正する頭部伝達関数修正部と、再生対象の音声信号に、修正された頭部伝達関数に応じて音像定位処理を施す音像定位処理部と、を含む。【選択図】図1 |
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