Quasimidi SIRIUS Manuel D'utilisation page 160

INDEX
Filter - The filter is a part in the Synthesizer, which creates the largest sound changes. The Sirius has
three types of filters, a 24db/oct - low pass, a 12 db/oct - low pass and a 12 db/oct - high pass. Low pass
filters depress the frequency area above the - > Cutoff- frequency. High pass filters are exactly the
opposite. The terms "12db/oct" and "24db/oct" describe the rolloff characteristics of the filter. A filter
with 12db is softer than a filter with 24db. You can try it out on the Sirius. An important parameter of the
filters is the - > Resonance or the Q-factor.
Filter-overdrive - With the filter overdrive in connection with - >Cutoff frequency and ->
Resonance you can create a distortion effect. You can compress the sound or make it more
aggressive.
Filter sweep - Filter sweep is a filter modulation. This can be accomplished by turning the Cutoffknob
on the Sirius or by modulating the filter with the - >LFO or the ->Envelope.
Flanger - Extra type of - >Delay, where the delay time is modulated. Depending on the delay time and
the feedback adjustment the flanger creates a spacious and suspended sound.
Formant-Modulation - Every sound exists as partial tones, which determines its character. The
Formant- Modulation creates a movement of the partial tones. This can be used for a suspension or a
drastic change to the sounds.
Foot-pedal - The Sirius has a connection for a foot pedal. It has two functions. If the - >Arpeggiator is
active you can hold the Arpeggio and transpose it by using the keys. The foot pedal should be hooked up
before turning on the Sirius.
FX-1/FX-2 - The - > Effect processors provide the Sirius with - >Reverbs, - >Delays and modulations
like ->Chorus/Flanger.
FX-Send - This Parameter defines to which extent the sound is sent to the effect processors (- >FX-1,
FX-2).
Gain-Control - This control is used to adjust the input sensitivity of the Analyze input (microphone
input). On a mixer desk it is used to adjust the incoming signals. If the control is adjusted to high,
distortion will occur.
Gater- A Gater effect causes rhythmic chopping of a sound, for example a pad sound. The gater is
triggered by another track. Glide ->Portamento
Groove - With the groove function you can shift the beats of a running sequence to different extents.
Through this the rhythm starts to swing.
Hall - >Reverb
ID-Number - When transferring -> System Exclusive data, IDs are needed to distinguish between the
several connected instruments. There is an ID for the manufacturer and the model number and
additionally a special Sirius-ID (which is the same as the system-channel), so you can connect more than
one Sirius.
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