Genymotion can actually use your computer microphone. Depending on your computer, it sometimes does not work due to the tight support of VirtualBox.
Here's a talk about this topic in the Genymotion Google Group . You should try playing with the sound configuration on VirtualBox:
- Open VirtualBox
- Select a virtual machine and open its settings
- Go to the sound tab and change the audio controller or audio pilot
Let me know what your configuration is (OS, Genymotion version).
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