An error is reported when starting the Android emulator: Emulator: audio: Failed to create voice `goldfish_audio_in’

After updating Android Studio to 3.5.2, the following error occurred when starting the emulator:
Emulator: audio: Failed to create voice `goldfish_audio_in’
In fact, this error does not affect our use in the future, but for me who is a little obsessive, mistakes are unforgivable and must be solved.
Solutions:
Right click on the sound icon and select Sound.

After opening the sound Settings panel, select the “Record” TAB, right-click the “Stereo Mix” and enable it, as shown in the figure below:

Open the Android emulator again, the error report disappears, and the problem is solved.

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