The size, expressed in milliseconds, of the DirectSound buffer used for song playback.
The supported range for this property, whose default value is 500, is between 100 and 5000: higher or lower values will be automatically cut to the nearest supported value.
Decreasing the size of the DirectSound buffer will result in a smaller latency time: for details about latency, take a look to the How to deal with latency section.
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