The DSStream sample illustrates the use of streaming sound buffers. It works best with sounds that are more than 2 seconds in length.
Source: (SDK root)\Samples\Multimedia\DSound\Src\DSStream
Executable: (SDK root)\Samples\Multimedia\DSound\Bin
Load a single wave file by selecting Open from the File menu. Play the sound once by choosing Play! from the main menu or by clicking the Play button. Halt the playback by choosing Stop! from the main menu or by clicking the Stop button.
To make the program play the sound continuously, select the checkbox labeled Looped.
The DSStream program displays controls for panning the sound, decreasing the volume, and changing the frequency.
You can make DSStream enumerate the sound drivers when it is next started. To do this, select Enumerate Drivers from the Options menu.
The program demonstrates how to stream a lengthy wave file into a secondary buffer, using notification positions and a separate thread to handle notifications.