Method of processing a plural channel audio signal
    1.
    发明授权
    Method of processing a plural channel audio signal 有权
    处理多声道音频信号的方法

    公开(公告)号:US06643375B1

    公开(公告)日:2003-11-04

    申请号:US09185711

    申请日:1998-11-04

    IPC分类号: H04R500

    CPC分类号: H04S1/005

    摘要: A method of processing a plural channel audio signal representing a three dimensional sound-field for generation by respective left and right loudspeakers arranged at a given distance from a listener, including: a) choosing a distance between said loudspeakers and said listener; b) determining from this chosen distance an optimal amount of transaural acoustic crosstalk compensation, the optimal amount being a function of the chosen distance; and c) applying said optimal amount of crosstalk compensation to said left and right channels. The optimal transaural crosstalk cancellation is preferably achieved using a near ear response transfer function and a far ear response transfer function which asymptotically approach different values at low frequencies. The method may further include choosing an angle between the left channel loudspeaker and the right channel loudspeaker, and determining from both the chosen angle and the chosen distance an optimal amount of transaural crosstalk compensation.

    摘要翻译: 一种处理表示三维声场的多声道音频信号的方法,所述多声道音频信号用于通过从收听者以给定距离布置的相应左和右扬声器生成,包括:a)选择所述扬声器和所述收听者之间的距离; b)从该选择的距离确定最佳数量的经弦波声学串扰补偿,最佳量是所选距离的函数; 以及c)将所述最佳量的串扰补偿应用于所述左和右声道。 优选的超音速串扰消除优选使用近耳响应传递函数和在低频处渐近地接近不同值的远耳响应传递函数来实现。 该方法还可以包括选择左声道扬声器和右声道扬声器之间的角度,以及从所选择的角度和所选距离两者确定最佳量的经弦波串扰补偿。

    Apparatus for audio signal stereophonic adjustment
    2.
    发明授权
    Apparatus for audio signal stereophonic adjustment 失效
    音频信号立体声调节装置

    公开(公告)号:US5751815A

    公开(公告)日:1998-05-12

    申请号:US663317

    申请日:1996-06-21

    IPC分类号: H04S1/00 H04R5/00

    CPC分类号: H04S1/007 H04S1/002

    摘要: An audio signal balance control arranged is described in which, by utilizing binaural head related transfer functions, balance control beyond a first plane (22) in which two loudspeakers lie may be achieved. The transfer functions are derived from conventional artificial-head recording techniques with various attitudes of the artificial head in a further plane (25) normal to the first plane (22).

    摘要翻译: PCT No.PCT / GB94 / 02756 Sec。 371日期:1996年6月21日 102(e)日期1996年6月21日PCT 1994年12月16日PCT PCT。 第WO95 / 17799号公报 日期:1995年6月29日描述了一种布置的音频信号平衡控制,其中通过利用双耳头相关的传递函数,可以实现超过可以实现两个扬声器所在的第一平面(22)的平衡控制。 传递函数是从具有人造头的各种姿态的常规人造头记录技术导出的,在另一平面(25)中垂直于第一平面(22)。