Program Mode
Editing VAST Programs
6-15
Velocity Tracking (VelTrk)
This is another common DSP control parameter. As with the other parameters on the KEYMAP
page, this shifts the position of the keymap. Different attack velocities will play different pitch
shifts of the sample root assigned to that note range. If the shift is great enough, the next higher or
lower sample root will be played, which in some cases (many drum programs, for example) will
play an entirely different sound. Positive values will play higher pitches of the sample root when
you use hard attack velocities (they shift the keymap downward), while negative values will play
lower pitches.
Method (AltMethod)
See
Alternative Switch (AltControl and AltMethod)
below.
Stereo
You’ll use this parameter when you’re working with stereo samples.
When you set this parameter to
On
, the KEYMAP page changes slightly:
An additional Keymap parameter appears. The two keymap parameters are distinguished as
Keymap 1 and Keymap 2. The KEYMAP page parameters will affect both keymaps. When the
Stereo parameter is set to
On
, the OUTPUT page for the current layer will show an additional
pair of Pan parameters.
The PC3A contains both stereo and mono samples. Keymaps designed for stereo use are labeled
with names beginning with “Stereo” or ending in “Left,” “Right,” “L,” or “R.” For stereo keymap
playback, set Stereo “On” and assign corresponding Left and Right keymaps to Keymap1 and
Keymap2 respectively. For keymaps beginning with “Stereo,” assign the same keymap to both
Keymap1 and Keymap2. If you select the same keymap for Keymap1 and Keymap2, the PC3A
automatically uses the left side for Keymap1 and the right side for Keymap2.
Once you have the keymaps assigned, go to the OUTPUT page and set the panning for each
sample as desired. Keep in mind that using stereo keymaps reduces the polyphony of the
program. For example, if you had a two-layer program with stereo keymaps in each layer, each
note you play would use 4 of your 128 voices, allowing a total of 32 notes before all the voices
have been used.
If you’re not using stereo samples, you should set this parameter’s value to
Off
.
