请问音频底噪测试时,应该在音频信号分析仪上如何设置滤波器?是否还要添加硬件滤波器?
a-weight滤波器具体是啥意思,怎么个算法?是否有a-weight滤波器的相关paper文档
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请问音频底噪测试时,应该在音频信号分析仪上如何设置滤波器?是否还要添加硬件滤波器?
a-weight滤波器具体是啥意思,怎么个算法?是否有a-weight滤波器的相关paper文档
你好:
设置20-20HZ AES-17这样的滤波器+A-weighting。如果是class D的功放,可以加上AUX (也是AP仪器系列中的一种)的硬件滤波器,不是class D就可以不加。
A-weighting 请见如下:
http://en.wikipedia.org/wiki/A-weighting