I think you all saw this message when trying to record a new Group song: "Headphones Required To save a collab, you must use headphones the entire time." or "Try again Headphones are required to save your collab." when running Smule on Android emulator (BlueStacks for example). Finally you can fix this!
[How-To] Bluestacks: change screen resolution
To change screen resolution in BlueStacks Android emulator you need to edit two registry items: 1. Run regedit.exe 2. Set new resolution (in decimal): HKEY_LOCAL_MACHINE\SOFTWARE\BlueStacks\Guests\Android\FrameBuffer\0\Height and HKEY_LOCAL_MACHINE\SOFTWARE\BlueStacks\Guests\Android\FrameBuffer\0\Width Kill all BlueStacks processes. Restart BlueStacks