Android-Studio in VM. Emulator: audio: Failed to create voice `goldfish_audio_in'
Uninstall Intel x86 Emulator Accelerator  from windows control panel. Then install it again in android studio.

Tools => Android => SDK manager => SDK tools => Intel x86 Emulator Accelerator (HAXM installer). 

Then make sure that you plug a microphone or a line - in cable to the input socket of your pc. 

This is how I got my own issue disappeared.