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Interactive music is a complex tool with many options. Adopting a coherent strategy towards interactive music at the beginning of a project can save you time and effort later on. Of course, there are multiple ways to approach any interactive music project, and you can use Wwise in any way you see fit to create the best results for your game. The following are suggestions for how you can get the most from your interactive music including troubleshooting information for any playback problems that might arise.
If you are having desynchronization or voice starvation problems when auditioning tracks, and you are connected to the game you can set a new look-ahead time in the Property Editor. If you are experiencing these problems in Wwise for unstreamed tracks, you can try adjusting the Music Track look-ahead time (ms). See Setting the Music Track look-ahead time.
As a general rule, the more tracks that you have playing simultaneously, the more look-ahead time you will need to avoid voice starvation and maintain track synchronization. The exact amount of look-ahead time will depend on many factors, including the compression format and the total bandwidth usage at the time of the request.
The sample converter used in Wwise increases the length of a sound by approximately 12 samples per minute for sources in the following frequencies:
44,100 Hz
22,050 Hz
11,025 Hz
Although this is not a problem for sound objects, music objects can stop at the exit marker and don't necessarily play to the end of the file, which can cause inconsistencies. It is a good idea, therefore, to use 12,000, 24,000, 36,000, or 48,000 Hz audio files for your music objects because these don't introduce any errors.
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