RE: [Linuxsampler-devel] RE: Hi - Very quiet list - my first post

[Mark K. <mk...@co...>]

> -----Original Message-----
> From: lin...@li...
> [mailto:lin...@li...]On Behalf Of Josh
> Green
> Sent: Tuesday, January 21, 2003 4:25 AM
>
> What kind of velocity functionality are you looking for?
>
Josh,
   I think Markus had it basically right in his follow up email. We need to
be able to map multiple sample sets against a single note, or range of
notes, but choose them based on what MIDI velocity is received. This is the
way all of the good GSt libraries work.

   As an example only, for the piano libraries they may sample the piano at
4, 8 or 16 even different playing key pressures. Then the softest sample is
mapped from a MIDI velocity of 0-31, the second from 32-63, third from
64-95, fourth from 96-127. Within each range the same sample is played, but
the sample's audio volume is adjusted based on the velocity, so that a MIDI
velocity of 93 plays louder than a velocity of 68, but they both play the
same sample.

   The technical issue with these libraries is that sometimes a velocity of
63 and 64 do not compare well with each other, so there are adjustments made
in each sample set to get it all to work. You are going to find these
adjustments in a .gig file I'm sure.

   The other one we need is 'key switching', where a range of keys on the
keyboard are reserved as switches, not notes. When one of these keys is
pressed, the complete sample set for all MIDI velocities changes. I think
this one is easier to implement though. (Famous last words...) You'll find
this in some of the .gig libraries, but possibly not on Worra's site.

Cheers,
Mark