Yamaha SY99, Руководство пользователя

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APPENDIX
Using loaded samples to create a voice
The ability to load sampled sound data for use in
voices is an innovative feature which sets the SY99
apart from other digital synthesizers. This feature
allows advanced programmers to make use of sound
data sampled using digital samplers such as the
Yamaha TX16W, in addition to the SY99's own
preset waveforms and, the waveforms offered as
waveform cards.
To make use of this ability, you must first under-
stand
the difference between a
sample
and a
wave-
form. The SY99 cannot make use of raw sample
data per se; this data must first be assigned to a
waveform before the SY99 can use it as a voice
element. The assignment of samples to a waveform
is thus the crucial step which allows you to make
use of sample data in an SY99 voice.
A sample voice: The process of creating a voice us-
ing sampled sound data may thus be divided into
three fundamental steps: (1) loading Samples
into memory; (2) editing the samples and
assigning them to a waveform; and finally, (3)
editing the voice. In this appendix we would like
to focus on the second step, the assignment of
samples as waveforms. The simplified example
that follows outlines the basic features of this
process.
1. Load the samples to be used into to sample
RAM area.
You can load samples into the sample RAM
area using Sample utility job 03:Load from disk,
or via MIDI sample dump. Say, for example, you
wish to create a voice using three piano samples
which were sampled at different locations of the
keyboard.
When you have completed the load procedure,
the sample directory might appear as shown
above.
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2. Select a voice and set the voice mode.
The next step is to prepare the voice which will
use the sample data as a waveform. Begin by
choosing voice memory I-A01 and setting the
voice mode to Mode 6 (1AWM poly). This step
corresponds to step 1 of the procedure described
in Using RCM hybrid synthesis, above.
3. Initialize the voice common and element data.
Initialize both the voice common data and the
AWM element, as outlined in steps 2 and 3 of
the procedure described in Using RCM hybrid
synthesis, above.
You will notice that the waveform assigned to
this voice is now a simple triangle wave, preset
waveform 2-64.
4. Select an internal waveform.
From: Voice edit (JUMP #256)
Select: 02:WaveSet (JUMP #257)
Press: F4 (Intr)
Select: Intrnl 1 INT-WAVE
In this step, you can assign an internal wave-
form for the AWM element of your voice. Since
you have not assigned any sample data to this
waveform yet, pressing a key will produce no
sound.