[fluid-dev] improving musical timekeeping

[address@hidden]

Here's a thought:

Currently, samples start playing from the very beginning of their attack 
phase at the moment a NoteOn is due, right? This means instruments with 
meaningfully long attack phases will drag (be late musically); and to 
make things worse, drag varying amounts by note (pitch) as the sample is 
resampled for various pitches. This unavoidaby makes musical timekeeping 
poor, and needs manual, sample- and note-specific correction to arrive 
at good timekeeping.

But it does not have to be this way when playing from a score. Real 
musicians, when playing from a score, know ahead of time what notes they 
will have to play and when, so they play their notes slightly ahead of 
time, just enough to give time to the instrument to complete the attack 
phase, to arrive at the meaningful musical onset of the note exactly on 
time.

Why don't samplers/synthesizers do that when playing back a score? Why 
don't we designate in our samples a musical onset point (much like we do 
with loop points), and then play the sample early, just enough so that 
this designated musical onset arrives on the "tick"?

Sample makers wouldn't have to artificially shorten their attack phases 
just so that their soundfonts play "on time", and/or composers would no 
longer have to be forced to compensate for - sample/soundfont-specific, 
and note specific - attack phase lengths by tediously manually moving 
their notes earlier in their scores. This would automatically be "on time".