Understanding DirectX Audio

This section describes the underlying workings of Microsoft� DirectX� Audio without going into the details of the Microsoft� DirectMusic� and Microsoft� DirectSound� APIs. It is intended to give you a deeper understanding of concepts than that presented in Basic Concepts of DirectX Audio. For information on how to use the APIs, see Using DirectX Audio.

The following topics are covered:

• DirectSound and DirectMusic
• Overview of Audio Data Flow
• Compositional Music Elements
• How Music Varies During Playback
• Music Values and MIDI Notes
• Downloadable Sounds
• Audio Scripts