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TOPIC: Round Robin ?

Round Robin ? 5 years 1 month ago #1

  • j
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Hi,
polyphone is great, but how do I set up round robin?
(cycle through different samples of the same pitch when playing the same note)
best regards
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Round Robin ? 5 years 1 month ago #2

  • Reuben
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As far as I know SoundFont does not support Round Robin. True Round Robin will cycle through different samples when playing the same note even at precisely the same velocity. However if you have enough velocity samples you will achieve pretty much the same effect with live playing with SoundFont, given that its unlikely you will hit the same note with exactly the same velocity over and over. The more velocity layers the better the chance of not hitting the exact same 0-127 velocity.
If you are converting say an SFZ file that has Round Robin sampling you could assign the different RR samples to velocities that are only a few steps apart. So if it had say C4 sampled 4 times for velocities 100 to 111 you could assign RR1 sample to 100, 101, 102 and 103 RR2 to 104, 105, 106 and 107 etc. Or alternatively mix it up with RR1 at 100, RR2 at 101 and so on. It would be a bit of work but is achievable.
I actually tried this with a bass SoundFont I had and it did work. But honestly I couldn't tell much difference between the version that had 4 times the number of samples with RR compared to the smaller version.
Last Edit: 5 years 1 month ago by Reuben.
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Round Robin ? 1 month 1 week ago #3

  • Rob
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Thanks for your tip, Reuben!

But it means a lot of work to choose this kind of solution.
I first created an instrument with Polyphone today, then exported the files to .sfz format.
After that, I added the round robins by hand in a text editor - but that should be easier to do.
I hope that the developers of .sf2 will soon find a solution to this problem and Polyphone
will then incorporate this into the software.
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