Increasing this value increases the maximum number of chunks that can be in the cache. For example, if au.streamcaching.MinimumCacheUsage is 0.75 and your cache size is 32 MB, your maximum number of chunks would be 512. If you loaded in a large number of 64-KB audio assets, you would still be able to use 32 MB. This means that the closer au.streamcaching.MinimumCacheUsage gets to 1, the lower the average size of a chunk is needed to fully utilize the cache.