用一个数字锅代替模拟罐在电路不能正常工作

嗨，我想用一个数字锅代替模拟罐在这个电路。然而，它不能正常工作。有一些非常微小的声音波动，但仅此而已。我想知道需要做什么，或者为什么它不能像预期的那样工作，或者我如何解决问题。谢谢。



      以下为原文

    Hi,

I would like to use a digital pot in place of the analog pot in this circuit. However, it does not work properly. There are some very tiny sound fluctuations but that is all. I wonder what needs to be done, or why its not working as expected, or how I can work out what the problem is.

thanks
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