18 Dec
2002
18 Dec
'02
8:11 p.m.
On Thursday 19 December 2002 00.55, Frank van de Pol wrote:
[...]
It would work with hard disk recorders and the like, but synths and
samplers (generally) don't play by musical time, so they wouldn't
know where to start playing. You can tell when a note "starts" (by
looking for control changes corresponding to "note off"), but you
don't know when the note "end", unless you can read any events you
like directly from the sequencer.
Of course, you
may run backwards and stuff that way as well, but
don't expect the synths to play sounds backwards... ;-)
yes, that is the idea. In fact some plugins would indeed play the
sound backward (eg. scrubbing over a sample...), depends on the
plugin :-) this SPEED control allows the plugins to anticipate to
the POSITION
change events or discontinious position passed for the block to be
processed. Fast forwarding without SPEED hint would result in fast
skipping (like seeking on a mini disk deck); a slowdown would be
euh, also result in repositioning, but nudging a bit back every
block.
No, position changes are not just sent as absolute position, but also
indirectly as "tempo". Since the tempo would be scaled as well,
plugins would just think the tempo is different, and thus, beat sync
effects, hard disk recorders and other musical time sync'ed or locked
plugins will do the right thing.
However, your average sampler or synth will probably not timestretch
to fit the tempo, so samples, envelopes and stuff won't track the
speed control any more than they would tempo changes.
//David Olofson - Programmer, Composer, Open Source Advocate
.- The Return of Audiality! --------------------------------.
| Free/Open Source Audio Engine for use in Games or Studio. |
| RT and off-line synth. Scripting. Sample accurate timing. |
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