Windows Phone 8 makes uses of Windows Audio Session API (WASAPI) for audio capture/play. As Windows Universal is a natural extension to Windows Phone 8, WASAPI may be supported on it.
WASAPI enables client applications to manage the flow of audio data between the application and an audio endpoint device. WASAPI is also supported on Windows Desktop. As subset of WASAPI is supported on Windows 8 phone.
ref:
WASAPI - https://msdn.microsoft.com/en-us/library/windows/desktop/dd371455%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396
C++ sample code using WASAPI -
WASAPI enables client applications to manage the flow of audio data between the application and an audio endpoint device. WASAPI is also supported on Windows Desktop. As subset of WASAPI is supported on Windows 8 phone.
ref:
WASAPI - https://msdn.microsoft.com/en-us/library/windows/desktop/dd371455%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396
C++ sample code using WASAPI -
