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    • 1. 发明申请
    • AN AUDIO SIGNAL PROCESSING APPARATUS
    • 音频信号处理设备
    • WO2016023581A1
    • 2016-02-18
    • PCT/EP2014/067288
    • 2014-08-13
    • HUAWEI TECHNOLOGIES CO.,LTDFALLER, ChristofFAVROT, AlexisYUE, LangGROSCHE, Peter
    • FALLER, ChristofFAVROT, AlexisYUE, LangGROSCHE, Peter
    • H04S3/00
    • H04S7/306H04S1/002H04S3/008H04S2420/01
    • The invention relates to an audio signal processing apparatus (100) for pre-processing a first input audio signal (E L ) to obtain a first output audio signal (X L ) and for pre-processing a second input audio signal (E R ) to obtain a second output audio signal (X R ), the first output audio signal (X L ) to be transmitted over a first acoustic near-field propagation channel between a first loudspeaker and a left ear of a listener, the second output audio signal (X R ) to be transmitted over a second acoustic near-field propagation channel between a second loudspeaker and a right ear of the listener, the audio signal processing apparatus (100) comprising a provider (101 ) being configured to provide a first acoustic near-field transfer function (G LL ) of the first acoustic near-field propagation channel between the first loudspeaker and the left ear of the listener, and to provide a second acoustic near-field transfer function (G RR ) of the second acoustic near-field propagation channel between the second loudspeaker and the right ear of the listener, and a filter (103) being configured to filter the first input audio signal (E L ) upon the basis of an inverse of the first acoustic near- field transfer function (G LL ) to obtain the first output audio signal (X L ), the first output audio signal (X L ) being independent of the second input audio signal (E R ), and to filter the second input audio signal (E R ) upon the basis of an inverse of the second acoustic near-field transfer function (G RR ) to obtain the second output audio signal (XR), the second output audio signal (X R ) being independent of the first input audio signal (E L ).
    • 本发明涉及一种用于预处理第一输入音频信号(EL)以获得第一输出音频信号(XL)并用于预处理第二输入音频信号(ER)的音频信号处理设备(100),以获得 第二输出音频信号(XR),要在第一扬声器和收听者的左耳之间的第一声近场传播信道上传输的第一输出音频信号(XL),第二输出音频信号(XR) 所述音频信号处理装置(100)包括提供商(101),所述提供商(101)被配置为提供第一声学近场传递函数(GLL,第一声场近场传递函数) )在收听者的第一扬声器和左耳之间的第一声近场传播信道,并且提供第二声近场传播信道的第二声近场传递函数(GRR) 第二扬声器和收听者的右耳,以及滤波器(103),被配置为基于第一声学近场传递函数(GLL)的倒数来对第一输入音频信号(EL)进行滤波,以获得第一 输出音频信号(XL),所述第一输出音频信号(XL)独立于所述第二输入音频信号(ER),并且基于所述第二声学近似信号(ER)的反相来滤波所述第二输入音频信号 场传递函数(GRR)以获得第二输出音频信号(XR),第二输出音频信号(XR)独立于第一输入音频信号(EL)。