Random offset added to the region offset.
In many cases, will need to be used with a small ampeg_attack value to avoid clicks caused by the region playing starting with a point in the sample file where the value is non-zero. Computed when the note is triggered. Unipolar in ARIA, Cakewalk and rcg sfz.
Note: when using a player with disk streaming, such as Sforzando/ARIA, which does not load entire samples to memory but instead preloads on only the start (usually about half a second, following the original Gigasampler method), it is generally not a good idea to make the offset_random values so high that they would cause the offset to exceeed this buffer. In practice, that means keeping offset_random no higher than 20000 or so on most systems.
Potential uses: randomizing the phase alignment of multiple samples playing in unison; playing a looped sample from a randomized start point in order to create natural variation.
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Category: Sound Source, Sample Playback