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An Microsoft Cross-Platform Audio Creation Tool (XACT) sound is composed of one or more tracks, which are in turn defined by a collection of events. An event can be a "Play Wave" event, which plays a wave file, or a type of event that controls the playback of the wave, such as markers or level settings.
These events are available to the XACT audio designer.
| Icon | Event Type |
|---|---|
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Play Wave |
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Stop |
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Marker |
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Set Volume |
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Set Pitch |
All events, no matter what type, are provided a core set of properties. If any of the properties are not applicable to an event, they are either not presented or disabled.
The event properties specify the fundamental information for all events, such as its "friendly name" and comments.
| Property Name | Description |
|---|---|
| EventType | Displays the type of event. Display only. |
| Name | The default name of an event is its event type (for example, Play Wave). You can rename the event by changing this selection, or by selecting the name displayed in the sound bank window. |
| Comment | Comments from the designer. |
The timing properties hold the relative time information that the event may use to execute its playback, repeats, or notifications.
| Property Name | Description |
|---|---|
| TimeStamp | Time, relative to when the sound is played, when the event is to occur. |
| RandomOffset | Random time, relative to when the sound is played, when the event is to occur. Random time takes into account the TimeStamp property. If TimeStamp is set to three seconds, and RandomOffset is set to four, the event will occur at some random interval between three and seven seconds. |
| RelativeToStartEnd | Currently unsupported. |
The repeat properties specify how often and in what manner the event is to automatically repeat itself.
| Property Name | Description |
|---|---|
| RepeatEvent |
The following options are available:
Sub-properties are made available depending on this setting. |
| NumberOfRepeats |
The number of additional times the event should repeat. A value of 1 will cause the event to occur two times. If RepeatEvent is set to Infinite, this property does not appear. |
| RepeatFrequency | The amount of time, in FrequencyUnits, to pause between event repeats. |
| FrequencyUnits |
The units for RepeatFrequency. Options are:
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| LastRepeat | If an event is recurring, this property shows the last time the event will occur. |