Wwise Help

By default, objects play once from beginning to end. You might, however, want an object to play more than once. In this case, you can create a loop. When you decide to loop an object, you must define the number of times it will be looped. You have the option to loop the object indefinitely or to specify the number of times it will be looped.

By default, the entire object is looped, but if loop region markers have been added to the audio file, you can loop one part of an object. In a full loop, the entire object plays from beginning to end. When the object reaches its end, it returns back to the beginning to play again. It will play repeatedly until it reaches the number of loops specified.

In a region loop, only the region defined by the markers is looped. The object plays from the beginning until it reaches the end of the looped region. It then returns to the beginning of the marked region and plays the looped region repeatedly until it reaches the number loops specified. After the looping is finished, the last portion of the object is played. If the looping is infinite, the last portion of the object is never played. Wwise supports only one loop region, so make sure that only one region is defined in the audio file.

	Note
	Region markers (or start/end samples in Audition) must be created in a third-party application, such as Adobe® Audition® and Sound Forge®. Other third-party applications might work, but they are not officially supported by Wwise.

Since compressed file formats, such as ADPCM, require that file lengths and region markers fall on sample boundaries, the zero-based samples are padded during the conversion process. This extra padding can cause problems when sounds are looped. To avoid these problems, Wwise prompts you to re-convert looped sounds to ensure that:

Wwise uses a pitch shift during the re-convert process to ensure that the files meet the requirements of the compression format. The loops remain sample accurate and the sample rate of the file is not changed.

	Note
	Any loop markers in the audio file that are shorter than the sample boundaries are removed when converted in Wwise.

You can determine which objects will be played from memory and which ones will be streamed from a hard drive, CD, or DVD. When media is streamed from the disk or hard drive, you also have the option to avoid any playback delays by creating a small buffer that covers the latency time required to fetch the rest of the file. You can specify the size of the buffer so that it meets the requirements of the different media sources, such as hard drive, CD, and DVD. Unlike the rest of the streamed file, this small buffer is actually stored within a SoundBank and loaded with the SoundBank into memory at the appropriate point in the game.

	Note
	Audio playback in Wwise is always streamed regardless of whether the streaming options have been selected. The Stream settings, therefore, only apply when generating SoundBanks, and playing back from a remote platform or game.