Hi Michael,
Michael Garrett wrote:
I need to pre fill a delay line, in a Karplus Strong oscillator. That
data will then be overwritten during the duration
Of the ‘note’. Is there a ‘built in mechanism for accomplishing this, or
do I need to construct something using a table.
I need the delay line to be interpolating. I am setting the delay based
on the incoming note, and ideally would fill the
line with the same waveform, time dilated to fit the required length.
Short answer: no, there is no way to "pre fill" the delay that is native
to the [delwrite~] object.
You're on the right track to use a table, however. You could also go a
step further and build your own delay line using two tables, which
transfer back and forth to each other with [tabwrite~], and could be
preloaded with whatever you need. The [tabread4~] object should read
your tables with enough interpolation for Karplus Strong synthesis.
Otherwise, [delwrite~] and [vd~] are normally used for this, and [vd~ ]
seems to interpolate well enough. You'll have to set a very low
blocksize with the [block~] object to synthesize high frequencies in any
case.
In the past, there's been quite a bit of discussion about KS synthesis
on the list. And it sounds like you have a rather complicated approach
to it (or at least more so than standard KS synthesis). If you're
interested, it might be worth checking some of these threads for more tips.
best,
d.
--
derek holzer ::: http://www.umatic.nl
---Oblique Strategy # 200:
"How would you explain this to your parents?"
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