Cycling '74

ipoke~, butt~ and += now in version 2

Dec 27 2006 | 6:37 pm

Dear all

My very modest contribution to the Max/MSP community is now in v.2

for Mac (UB)

ipoke~ in an interpolating buffer writer, filling the gab between non-

consecutive addresses. This is needed for emulating a variable

sampling rate digital delay for instance. for version 2, I've

optimised the filling algorithm and fixed a bug that caused Max to

crash. The code is about twice as fast.

butt~ is a dirty filter. A simple trick tickling the feedback buffer

of a biquad. The v.2 is now Altivec coded, so the code is about 4

times as fast. Even the scalar mode is way faster due to some

profiling, about twice as fast. The source is available on the dev

forum...

finally, plusequals (+=) is a simple yet effecient accum. Not really

needed but sweet ;-)

All bug reports are welcome as usual. I can send the new code to

anyone who wants to compile it for XP.

ps thanks to Peter Castine, Alex Harker and Mark Pauley for their

time and contribution on the dev list!