[PD] Implementing "switch-and-ramp" technique to cancel discontinuities
simonxwise at hotmail.com
Wed May 2 11:14:30 CEST 2007
On 2 May 2007, at 5:35 PM, Frank Barknecht wrote:
> it only works if the discontinuity is one starting a zero
isn't the book describing a way to switch from a playing wave form to
a new one which starts at zero?
The example refers to re-triggering something like a percussion
sample - it is a way to fix the glitch resulting from suddenly
cutting off the 'old' sample (which is likely not at a zero-crossing)
and replacing it by a new one (which starts at zero). The flowchart
shows adding a signal ramping to zero from the last value of the
That is: the whole example/technique described depends on the
assumption that the re-triggered sample starts from zero, it doesn't
make sense otherwise.
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