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Slow groove changes the values


jvkr
October 14, 2008 | 11:12 pm

Patch below shows that playing rather slowly the content of a buffer using groove, results in the extreme values being changed. What goes in in the range -1 to 1, while playing this range actually goes beyond -1 to 1. Is this the side effect of interpolation?

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johan

– Pasted Max Patch, click to expand. –

jvkr
October 15, 2008 | 3:52 pm

As am addition, all speeds except for original speed have an effect on the values generated from groove. The context where this is relevant is a recorded control signal of which the values I expected to be in a specific range–the range that was recorded. It took me a while to discover why what I patched didn’t work as expected.
_
johan


stefantiedje
October 18, 2008 | 7:20 am

jvkr schrieb:
> Is this the side effect of interpolation?

Yes, if you don’t want cubic interpolation, you should use index~ to
read out, or wave~, with interp 2. It seems that interp 1 isn’t the same
as in groove~ and play~, I would expect a cubic interpolation of noise
to produce higher values…

– Pasted Max Patch, click to expand. –

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