About DirectSound

The Microsoft® DirectSound® application programming interface (API) is the wave-audio component of the DirectX® API. DirectSound provides low-latency mixing, hardware acceleration, and direct access to the sound device. It provides this functionality while maintaining compatibility with existing device drivers.

DirectSound enables wave sound capture and playback. In C++, it also supports property sets, which enable application developers to take advantage of extended services offered by sound cards and their associated drivers.