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Notes and suggestions on Sound Editing
WAVEFORM
Not all Waveforms cover the entire extension of
the keyboard. This becomes particularly evident
when you use an 88 note keyboard.
The "problem" is caused by a lack of samples at
the extremes of the keyboard. During the creat-
ing phase of a Waveform, considerations are
made for the quality of the sound and the amount
of memory necessary to store all the samples
which constitute the Waveform; if some high or
low end samples are lacking in musical quality
(e.g., the lower notes of a violin Waveform, or
the higher notes of a double bass Waveform), it
is preferable to eliminate them to avoid using up
precious memory.
VOLUME, VELOCITY & AFTERTOUCH
The Volume of a Sound can be controlled in live
situations by velocity and aftertouch variations
( the relative parameters are found in the Volume
editor ).
If you set very sensitive values for both controls
(e.g. +7 assigned to both dynamics and
aftertouch), the Sound will be very difficult to con-
trol and easily susceptible to sudden volume vari-
ations.
LOOP AND LFO
By programming a loop on two segments of a
Key On Envelope which create an ascending and
descending ramp (/\) you can simulate a Tremolo
effect, without using the Lfo editor.
A loop of this kind on a Pitch Key On Envelope
will simulate a more realistic Vibrato effect than
the effect obtained with the LFO.
16•38 Reference Guide
KEY OFF ENVELOPE
Thanks to the articulated Key Off Envelopes (Re-
lease phase) of the SK760/880 Series, you can
create some very interesting effects. In practice,
you can render a Sound "live" after releasing the
keys.
For example, try programming an Amplitude Key
Off Envelope of the following kind with a Sound
such as 12StrGtr (26-2):
When you release the key the sound begins to
fade and then reappears, it is held for an instant
and then fades away gradually.
LFO
Lfo can be applied to several different sound pa-
rameters. The effect produced depends on the
parameter affected:
Amplitude
Pitch
Cutoff Freq.
–>
Vibrato
–>
Tremolo
–>
'Wha-wha'
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