Android Emulator: Audio Input Failed

问题:

Whenever I attempt to launch an emulator these errors appear in the console:

audio: Failed to create voice `goldfish_audio_in'
qemu-system-i386.exe: warning: opening audio input failed

Everything else in the emulator still works besides the audio. Has anyone found a solution to this issue? Switching the Graphics option on the AVD to Software - GLES 2.0 did not work. Any help is appreciated.

回答1:

Here how to fix this:

1. Go to Control Panel->Sound->Recording.
2. Make sure your default hardware, "Realtek Audio Default Device" (the one integrated in the motherboard) is enabled.

I disabled it by mistake trying to get my speakers to work and completely forgot...

回答2:

Phil's answer is correct but I can't comment on it directly:

This happens because ... There is in fact no available host audio input (nothing plugged to PC "audio in" or PC "audio in" already in use and cannot be shared)!

this was enough to get to complete the apk build and run on an AVD (API level 21 + android 5.0 / x86_64, with gpu graphics: Software GLES 1.1)

Under Windows start -> Control_panel-> Sound-> Recording -> microphone -> disable

-untested: -mic disabled + hardware graphics - As Phil suggested, mic plugged in probably works around the bug

I'd guess a mic is a requirement for working with Pixel AVD's that has been accidental applied to older non-pixel avds.

回答3:

This is not a bug and probably simply happens because... There is in fact no available host audio input (nothing plugged to PC "audio in" or PC "audio in" already in use and cannot be shared)!

Under Windows, please check into Control_panel->Sound->Recording that something is available as input, and if so, close any application that may exclusively use it (skype?).