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SPECTRALIS
now see oscillators 2-4 appear as well as the fifth sound-source ”Noise”. Working with
these oscillator envelopes alone provides you with an extensive playground, which you
will start to appreciate more and more the longer you work with your Spectralis.
TIP: If the attack-time or the release-time are set to ”0”, it is possible that an
annoying click-sound might pop up at the start or end of the sound. This may
be a result of the oscillators operating in free-oscillation mode – when you
are playing a key the oscillator signal is output directly. If the Waveform
being output currently happens to be in maximum-position, a steep curve is
being generated, which you might end up hearing as a click. This does apply
to all involved envelopes. You can however suppress these click-noises - which
tend to show up primarily with dull sounds and could be annoying -, rather
effectively by either setting the values for attack and release a little higher or
by switching the oscillators from free oscillation to a start with fixed phase-
position. The start phase-position of the oscillators can be set individually
for each oscillator on edit-pages 18-21. A set value of 0 plays the oscillators
in free oscillation mode and a value above 0 sets the position in the waveform,
from which the oscillator is being started, once a key is being played. Whichever
waveform you are chosing – they all will have a zero-pass position. If the
waveform is started in the zero position of course you won’t hear any click
even if the attack is hard. Depending on the selected waveform the zero-
position of the waveform can be found at a different value! The clicking noise
at the end of a sound cannot be avoided with the phase-position. In case of
doubt always set the release time to a value of 10, so the click at the end of the
sound is being eliminated with a soft fade.
3.3.4 Back to analog-technology – the multimode filter and filter-routing.
Now that we’ve eliminated the first potential stumbling block let’s look at another one.
You’ll see that the
[12dB HP]
-button on the frontpanel is lit. This indicates that the
highpass filter-output is active. Yet, when you are turning the cutoff-frequency of the
multimode filter
(Cutoff MM)
nothing happens . ”WHY”? Among other things in our
Spectralis each oscillator has its own level-control for each filter. Could it be that these
controls are turned down? It’s best to check – better safe than sorry! To do so, you’ll
have to push the
(OSC Wave)
-encoder-button in the oscillator-section. This will take
you straight to the oscillator menu.
From menu-Page 3 onwards (2x
[Page-Up]
) you will find all the oscillator level menus.
The first one controls the level for the filterbank for each oscillator. On page 4 you will
find the levels for the multimode-filter:
4/26:VCO MM Volume
Osc1:00 Osc2:00 Osc3:00 Osc4:00
"How to...?" - Multimode-filter and filter-routing
Summary of Contents for Spectralis
Page 1: ...1 SPECTRALIS Spectralis...