100 101Using Sampled Instruments
Sequential Prophet X User’s Guide
Using Sampled Instruments
This example shows how easy it is to use the sampled instruments like
you would use the Prophet X’s oscillators — as raw material to be
shaped. This means that most of the synthesis techniques you learn can
be applied to the sampled instruments, as well.
Layering Two Different Sampled Instruments
Another way to create something new and unique is to combine two
different instruments.
To combine two instruments:
1. Recall the Basic Program. (See previous examples if necessary.)
2. In the Mixer section, turn Instrument 2 level to 127. (Instrument 1 is
already at 127 by default in the Basic Program.)
3. Turn Oscillator 1 level down to 0. ( It’s at 127 by default in the Basic
Program.)
4. In the Sample Playback section, use the type knob to select piano.
5. Use the instrument knob to select the rst piano (1928 Grand Near).
6. Next, press the instr 2 button and use the type knob to select perc
tonal.
7. Use the instrument knob to select instrument 20: crotales mallet.
8. Play a few chords. You’ve got an interesting new hybrid instrument.
9. Add some chorus and reverb to complete the sound and add polish.
You can create countless musically useful instrument combinations. In
many cases you’ll need to adjust the level of the instruments relative to
each other in the Mixer for the best balance. Similarly, you may need to
use the tone parameter (in the sample playback menus in the display) to
apply high-pass or low-pass ltering to one or both of the instruments for
clarity.
Bypassing the Low-pass Filter on Sampled Instruments
By default, sampled instrument are routed through the low-pass lter
so that you can use it to shape their sound. In some cases, however, you
many not want to lter an instrument so that you can sonically separate it
from a second instrument, or from sounds created with the oscillators.
This is a great way to combine synth-type sounds with sampled sounds
and preserve the original sound of the sampled instruments without lter-
ing. Be aware that bypassing the low-pass lter on a sampled instrument
also bypasses the lter envelope for that instrument. The amp envelope
still affects the sampled instrument, but not the lter envelope settings.
To bypass the low-pass lter on an instrument:
1. Show the Sample Playback parameters in the display by pressing the
instr 1 button.
2. Press Soft Button 2 to select the instr1 misc menu tab.
3. To bypass the lters for instrument 1, turn Soft Knob 4 to enable lpf
bypass.
Using Sample Stretch
The majority of the instruments on the Prophet X are multi-sampled for
greater realism. On a sampled piano, for example, samples of individual
notes are recorded up and down the keyboard as they are played soft to
hard. These samples are mapped to the corresponding key on the Prophet
X. The playback engine of the Prophet X then uses velocity switching to
match the appropriate sample to the appropriate velocity at which you
play.
Having said all of this, you can create many interesting sounds by turn-
ing off multi-sampled velocity switching, and instead stretching a single
sample across the entire keyboard. This can have interesting effects on
the sound as it is stretched far beyond its original pitch.
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