sfplay3

Date	2015-04-26 07:09
From	Forrest Curo
Subject	sfplay3
Attachments	None None
	I understand this opcode and its relatives are not playing soundfont samples the way Nature intended... but is there anyone on the list that really understands how they work? Playing preset 46 (harp sounds) I'm sometimes getting buzzy organ-type notes -- with a little higher midi velocity, normal plunky notes, with yet higher velocities, tuned-drum sounds, and with the highest velocities (>100) usually silence. An artifact of the envelope I'm using? Other guesses?

Date	2015-04-26 15:46
From	Forrest Curo
Subject	Re: sfplay3
Attachments	None None
	Found it in the notes from when these were new opcodes: The specific use [set to preset 46] was a1,a2 sfplay3 p4, p5,kimp,kifr,ipre, 1 aenv linsegr 0, .05, .5,1,.1, 1, 0 ;envelope outs a1aenv, a2aenv and the notes say: sfplay plays a preset generating a stereo sound. ivel argument doesn't directly affect output amplitude, but informs sfplay opcode about what sample has to be choosen in multi-sample velocity-splitted presets. inotnum argument sets the frequency of the output when iflag = 0. When iflag == 1, inotnum doesn't directly affect the frequency of the output (see below). Adjustment of amplitude can be done by varying the xamp argument, that actually is a multiplier factor... I was changing the volume of the sound via kimp; meanwhile the midi velocity was arriving unchanged from 'p4' -- Hence, playing different samples! On Sat, Apr 25, 2015 at 11:09 PM, Forrest Curo <treegestalt@gmail.com> wrote: I understand this opcode and its relatives are not playing soundfont samples the way Nature intended... but is there anyone on the list that really understands how they work? Playing preset 46 (harp sounds) I'm sometimes getting buzzy organ-type notes -- with a little higher midi velocity, normal plunky notes, with yet higher velocities, tuned-drum sounds, and with the highest velocities (>100) usually silence. An artifact of the envelope I'm using? Other guesses?