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>The EXS24 in fact is not sample accurate. If you play 2 kick
>drums with each other simultaeneously via midi to the EXS24
>you will hear flanging
of course, because MIDI can only transmit one event at a time...
>The EXS24 in fact is not sample accurate. If you play 2 kick
>drums with each other simultaeneously via midi to the EXS24
>you will hear flanging
It's not that the EXS isn't sample accurate on playback - it is.
It's just that there's no way any softsynth can possible be sample accurate
for realtime
midi input - how can it possibly compensate without knowing in advance when
you're
going to send it a note?
Additionally, there is always a little jitter in the midi system, and audio
buffer cycling
will add some randomness to the response time, the result being that the
softsynth
response will be a little different for every incoming realtime midi note.
There's an important consequence of this for softsynths in Logic: because
realtime
midi input is not and cannot be sample-accurate, and because playback of the
midi
recording _is_ always compensated to be sample accurate, the timing you hear
on
playback _is not_ what you heard while recording the midi. Playback will be
on
average a little early compared to what you heard when you played in
realtime.
If the musician is (naturally) compensating for the perceived realtime
softsynth latency
by playing a little early, so what you hear in realtime is in time, when you
record that
to midi and play it back, it'll play back a little ahead of time (by the
audio buffer size).
Midi jitter and audio buffer cycling do have a randomizing effect on the
input, so it's
masked to some extent (because no musician can compensate for the
randomness),
but it could certainly be improved by _not_ compensating the playback for
realtime-
recorded softsynth midi.
Personally, I'd very much like to be able to turn the
"sample-accurate" compensation
for Audio Instruments off on a track-by-track basis. It makes sense for
step-entered,
scored, quantized, pencilled-in, or imported midi, but not for
realtime-recorded midi.
John Pitcairn
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