- Alexandros Drymonitis adrcki@gmail.com [2014-01-29 21:02]:
When sending the cosinesum message to an array, don't you have to specify the number of points too? And specifically a power of two? Plus, for a cosine you have to specify the first partial to have zero amplitude and the second an amplitude of 1 (or less). So the message should be something like [; array999 cosinesum 1024 0 1( First the name of the array, then the cosinesum function, table length and partial strengths. Hope I got your question right..
Thanks, you are right about the message format. My questions is with regard to a different behavior of sinesum vs cosinesum in Pd(0.45.0) when specifying the partials though.
On Wed, Jan 29, 2014 at 6:01 PM, Peter P. p8rpp@aol.com wrote:
[...]
not sure if I am getting something wrong here, but it seems that sending the message
; cosinesum array999 1
should of course read:
; cosinesum array999 512 1
does something different (besides an obvious phase shift between sine and cosine functions) to the resulting contents of that table:
the first partial on cosinesum seems to be the DC component, while the first partial in sinesum is the, well, first partial.
Accordingly, the second partials have double frequency in sinesum as in cosinesum.
Perhaps this is intentional, but was just wondering...
best, Peter