User Manual

SPECTRALIS 2

All you have to do is push the [Page-Up]-button repeatedly. One after another

you will 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:

Hybrid engine - Multimode-filter and filter-routing