Quasimidi Sirius
Encyclopedia
The Sirius is a synthesizer
Synthesizer
A synthesizer is an electronic instrument capable of producing sounds by generating electrical signals of different frequencies. These electrical signals are played through a loudspeaker or set of headphones...

 with hybrid tone generator referred to as DTE ('Difficult To Explain') synthesis http://www.soundonsound.com/sos/oct98/articles/quasisirus.html introduced in 1997 by Quasimidi
Quasimidi
Quasimidi Musikelektronik GmbH was a German synthesizer manufacturer. It was founded in 1987 by Friedhelm Haas and Jörg Reichstein. It was originally based in Kirchhain, but moved to Rauschenberg in 1998...

. It also features a vocoder
Vocoder
A vocoder is an analysis/synthesis system, mostly used for speech. In the encoder, the input is passed through a multiband filter, each band is passed through an envelope follower, and the control signals from the envelope followers are communicated to the decoder...

, both conventional and step sequencers
Music sequencer
The music sequencer is a device or computer software to record, edit, play back the music, by handling note and performance information in several forms, typically :...

 and a built-in drum machine
Drum machine
A drum machine is an electronic musical instrument designed to imitate the sound of drums or other percussion instruments. They are used in a variety of musical genres, not just purely electronic music...

. It is 7x multitimbral
Multitimbral
Monotimbral is usually used in reference to electronic synthesisers which can produce a single timbre at a given pitch upon pressing a single or multiple keys .An electronic musical instrument may be...

 (3 drum sounds, 1 multisampled drumkit and 3 synthesizer parts), and has 28-note polyphony
Polyphony
In music, polyphony is a texture consisting of two or more independent melodic voices, as opposed to music with just one voice or music with one dominant melodic voice accompanied by chords ....

.

The DTE synthesis method combines a basic sample playback tone generator with virtual analog-like controls. While some of the waveforms are sampled instruments, most of them are merely single-cycle samples of periodic waveforms
Periodic function
In mathematics, a periodic function is a function that repeats its values in regular intervals or periods. The most important examples are the trigonometric functions, which repeat over intervals of length 2π radians. Periodic functions are used throughout science to describe oscillations,...

 common in analog modelling synthesizers. Though technically a rompler
Rompler
A rompler is an electronic musical instrument that plays back samples stored in ROM chips to generate sound. Romplers lack the ability to record such samples and have limited or no capability for generating original waveforms...

, the Sirius has features and limitations not commonly found on such synthesizers such as oscillator detune control on the front panel and the requirement to use the same waveform on both oscillators, and thus while not entirely accurate, it is most often referred to as a virtual analog synthesizer.

See also

  • Access Virus
    Access Virus
    The Access Virus is a virtual analog synthesizer made by the German company Access Music GmbH. It was first produced in 1997 and has since been upgraded frequently, with the company releasing new models about every two years. Early models include the Virus A, Virus B, and Virus C series, each...

    , a well-known synthesizer-vocoder.
  • MicroKorg
    MicroKORG
    The microKORG is a MIDI-capable virtual analog synthesizer/vocoder from Korg featuring high-quality DSP analog modelling. The synth/keyboard is built in such a way that it is essentially a Korg MS-2000 with programmable step arpeggiator , a less advanced vocoder , lack of motion sequencing The...

    , another well-known popular synthesizer-vocoder.

Manual

http://z-universe.dyndns.org/php/download.php?file_name=/manuals/sirius_manual_english.pdf
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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