Method and apparatus for reducing rate determination errors and their artifacts
    2.
    发明授权
    Method and apparatus for reducing rate determination errors and their artifacts 有权
    用于降低速率确定误差及其伪影的方法和装置

    公开(公告)号:US07080009B2

    公开(公告)日:2006-07-18

    申请号:US09767522

    申请日:2001-01-23

    IPC分类号: G10L19/00 G10L19/14

    CPC分类号: G10L19/12 G10L19/005

    摘要: The present invention provides a method and apparatus for improving the audio quality of a signal by reducing the effect of mis-determining the frame rate of a frame. The method includes the steps of determining that the frame rate of the current frame of information is eighth rate (324/340), determining that the previous frame was a full rate frame (334) and resetting the filter states of a speech decoder (336). The method further comprises the steps of utilizing alternative symbol error thresholds based on the number of consecutive frames with the same frame rate (308/328).

    摘要翻译: 本发明提供一种通过减少错误确定帧的帧速率的影响来改善信号的音频质量的方法和装置。 该方法包括以下步骤:确定当前信息帧的帧速率是第八速率(324/340),确定先前帧是全速率帧(334)并重置语音解码器(336)的滤波器状态 )。 该方法还包括基于具有相同帧速率的连续帧的数量(308/328)来利用替代符号错误阈值的步骤。

    Method and apparatus to facilitate vocoder erasure processing
    5.
    发明授权
    Method and apparatus to facilitate vocoder erasure processing 有权
    便于声码器擦除处理的方法和装置

    公开(公告)号:US07395202B2

    公开(公告)日:2008-07-01

    申请号:US11148902

    申请日:2005-06-09

    IPC分类号: G10L19/00

    CPC分类号: G10L19/005

    摘要: Upon receiving (101) a vocoded voice frame and detecting (102) that the received vocoded voice frame comprises an erased frame, one automatically replaces (103) the erased frame with a valid frame having at least one error condition. In a preferred approach this error condition is one that is known to cause a receiving target platform to invoke a corresponding erasure process with respect to the valid frame when received.

    摘要翻译: 在接收(101)声码语音帧并且检测(102)所接收的声码语音帧包括被擦除的帧时,一个用具有至少一个错误条件的有效帧自动替换(103)已擦除的帧。 在优选的方法中,该错误条件是已知的,以使得接收目标平台在接收时相对于有效帧调用相应的擦除过程。