8 Dec
2002
8 Dec
'02
6:40 a.m.
On Sun, Dec 08, 2002 at 12:26:32 +0000, Nathaniel Virgo wrote:
I think velocity is special because it is often needed
by the synthesis
algorithm only at the beginning of the note. For instance, if you have a
physical model of a bell then the velocity will determine the shape and
magnitude of the impulse function you use to represent the striker. Changing
it midway through the note, after the bell has been hit, is meaningless.
A Bell is a good example of something where you want multiple velocity
events, you could call voice_on() or whatever to initialise the physical
model instance, then you send simultaneous velocity and position events to
indicate that the bell has been struck.
Its not true for a impulse derived bell but a weaveguide model of a bell
struck twice has a different sound to a pair of identical ones each struck
once at the respective times.
- Steve