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    Voice Communication Device, Signal Processing Device and Hearing Protection Device Incorporating Same
    1.
    发明申请
    Voice Communication Device, Signal Processing Device and Hearing Protection Device Incorporating Same 审中-公开
    语音通信装置，信号处理装置和听力保护装置

    公开(公告)号：US20110033055A1

    公开(公告)日：2011-02-10

    申请号：US12673088

    申请日：2008-09-05

    申请人： Siow Yong Low ,  Erik Niklas Ostlin ,  Alan Davis

    发明人： Siow Yong Low ,  Erik Niklas Ostlin ,  Alan Davis

    IPC分类号： H04R29/00

    CPC分类号： G10L21/0208 ,  G10L25/18

    摘要： Signal processing device comprising: a signal analyser (7) for analysing a received signal into the subband domain; a first signal path (10) and a second signal path (11), the first signal path (10) being decoupled from the second signal path (11), whereby the first signal path (10) and the second signal path (11) are arranged to pass the received signal; only the first signal path (10) includes automatic gain control (3), the first signal path (10) further includes one or more speech metric functions (4, 5, 6) to determine estimated gain functions therein, the signal in the first signal path being passed from the automatic gain control (3) to the one or more speech metric functions (4, 5, 6) to enable determination of the estimated gain functions, the estimated gain functions determined by the one or more speech metric functions being combined to generate an overall gain function which is applied (9) to the signal (14) in the second signal path (11) to generate an enhanced signal; and a signal synthesiser (8) for synthesising the enhanced signal (12) into a fullband representation.

    摘要翻译： 信号处理装置，包括：信号分析器（7），用于将接收的信号分析成子带域; 第一信号路径（10）和第二信号路径（11），第一信号路径（10）与第二信号路径（11）去耦合，由此第一信号路径（10）和第二信号路径（11） 被布置成通过接收的信号; 只有第一信号路径（10）包括自动增益控制（3），第一信号路径（10）还包括一个或多个语音度量函数（4,5,6）以确定其中的估计增益函数，第一信号路径 信号路径从自动增益控制（3）传递到一个或多个语音度量函数（4,5,6）以使得能够确定估计的增益函数，由一个或多个语音度量函数确定的估计增益函数为 组合以产生对第二信号路径（11）中的信号（14）施加（9）以产生增强信号的总体增益函数; 以及用于将增强信号（12）合成为全频带表示的信号合成器（8）。