Representing Audio Files with the AudioTrack Class

The AudioTrack class includes information about the location of an audio file, as well as track metadata, such as the track’s title. Table 34.3 describes each of the AudioTrack properties.

TABLE 34.3. AudioTrack Properties

AudioTrack implements IEditableObject to enable batching of property change requests. After an AudioTrack object has been instantiated, it cannot be changed without putting it in edit mode first. AudioTrack uses an IAudioTrack backing field, which links the managed AudioTrack object to the native audio system via Com Interop. To make changes to an AudioTrack object, its BeginEdit method must be called. When all changes have been made, EndEdit should be called. This commits the property changes to the OS via the native IAudioTrack object.