Korg DSS-1 - KLM-781 CPU2 Board; KLM-782 Tone Generator

Discontinuity in a short loop will result in noise.
Therefore, it is usually a good idea to take advantage
of the “auto zero cross search” function which
assures a smooth loop by automatically finding the
optimum start point and loop length.
The long loop is ususally used to produce continuous
sound from samples of massed instruments such as
an orchestra or string or brass ensemble. Here the
loop length is set on the order of from several thou
sand to tens of thousands of cells.
In such a long loop there may be a problem of
volume, pitch and timbrat transitions between the end
and the beginning of the loop. Such problems are
solved by using the “cross-fade” and “back-and-
forth” functions offered by the D SS-1. These let you
process the sound to assure high continuity when us*
ing long loops.
if the loop on/off parameter is set to “on,” then all
sounds within the multisound will be looped accor
ding to their particular and individual start point and
loop length values.
This suggests a way of making a looped sound ap
pear as if it is not looped. Simply set the start point at
the very end of the sample and set the length to 1.
After reproducing the entire sound, the DSS-1 wilt
start to loop this single piece of data, but since there
is no change in the level, there is no alternation in the
waveform and so no audible sound.
• Example:
sounds.
Making a multisound which includes drums and bass
Drum sounds
r ----- A ----- >
Bass sounds
a
"\
v _ y _ ---- — ^
For each of these
drum sounds, set
the loop length to 1
and set the start
point to the final ad
dress in memory.
__________ _ ___________________ )
y -
Loop these bass
sounds in the nor
mal manner.
Loop start point is at the
end of the sound. Loop
length is 1.
The looped portion of the
waveform has no change in
amplitude and is not audi
ble as a sound. (The whole
sound appears the same as
if it were not looped.)
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