| Proteus | |
|---|---|
| Manufacturer | E-mu |
| Technical specifications | |
| Polyphony | up to 128 voices |
| Timbrality | up to 128 notes |
| Oscillator | Digital |
| Synthesis type | Sample-based synthesis |
| Input/output | |
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TheE-mu Proteus was a range of digitalsound modules and keyboards manufactured byE-mu Systems from 1989 to 2002.
E-mu Systems came to prominence in the early 1980s with its relatively affordableEmulatorsampler, and subsequently pioneered sample-based synthesis technology with the Proteus range. Unlike earlier types of synthesisers, sample-based equipment does not derive its raw sounds from electronicoscillators or algorithmically generated waveforms, but from recorded sounds held inread-only memory (ROM) chips. These sounds may then be layered,filtered, modulated bylow frequency oscillation and shaped by ADSR envelopes. However, unlike a true sampler, such devices do not allow the user to record sounds but instead offer a range of factory sounds suitable for any given use. This type of sound production dominated electronic music production for several years in the late 20th century. The exclusive license for re-formatting and managing historical E-MU Proteus sound content has been acquired byDigital Sound Factory.
The original Proteus series are basicROMplers which contains 3 base models with 192 patches each, of which 64 are editable by the user. The patches have an assigned sample and allow basic ADSR editing, and it's possible to link more than one patch together for a richer sound. The units have 32 voice polyphony.
The Proteus 1 contains general sounds from theEmulator library useful for music production, the Proteus 2 specializes in orchestral sounds, and the third model in sounds forworld music. Additional versions include the following:
 | Proteus 1 Pop/Rock (1989) |
 | Proteus 1 XR (1990) |
 | Proteus 1 Plus Orchestral (1990) |
 | Proteus 2 Orchestral (1990) |
 | Proteus 2 XR (1990) |
 | Proteus 3 World (1991) |
 | Proteus 3 XR (1991) |
 | PROcussion (1991) |
The second generation of E-MUROMplers added a filter.
 | Vintage Keys (1993)[1] |
 | Morpheus (1993)[2] |
 | Vintage Keys Plus (1993) |
 | Proteus FX (1994)[3] |
 | Classic Keys (1994)[4] |
 | UltraProteus (1994)[5] |
 | Orbit [Techno/Electronica] (1996)[6] |
 | Planet Phatt [Hip-Hop] (1997)[7] Orbit V2 [Techno/Electronica] (1997)[8] |
 | Carnaval [Latin] (1997)[9] |
TheProteus 2000 released in 1999 was a 1U rack sound module based on Audity 2000 released in 1998. It contained many "bread and butter" sounds,[10] among just over a thousand waves utilising 32 megabytes of ROM. It featured up to 128 voice polyphony and 32-part multi-timbrality.[11] It could be expanded with slots for three additional sound ROM cards. A cheaperProteus 1000 model was also introduced with the same soundest and ROM but only 64 voice polyphony and fewer individual sound outputs. The Proteus 2000 also has Protozoa ROM expansions that contain patches from the original Proteus trilogy, where the first 128 patches towards each of the three modules respectively were faithfully re-mastered digitally from scratch that could be purchased to add onto the module, consisting a total of 384 patches of up to 16 MB of memory.
The Proteus 2000 range also consisted of several specialized models, some differing from each other only by the sound banks they contained. However, most allowed four ROM chips to be mounted, and these chips were available separately, so real differences might be simply cosmetic. The available ROM chips included the Composer, a work-horse set of sounds useful for popular music production, three orchestral ROMs, the Vintage Keys collection of electric organs, pianos and classic synthesisers, a chip dedicated to the Hammond organ and a drum ROM as well as the Orbit and Mo-Phatt collections, aimed at dance and urban genres and the Xtreme Lead, optimised for monophonic synthesiser soloing. Most of these were also sold as specialized modules, even though the hardware inside most of there is virtually identical to the Proteus 2000.
 | Audity 2000 [General] (1998) |
 | Proteus 2000 [General] (1999) |
 | Virtuoso 2000 [Orchestral] (2000) |
 | Proteus Orchestra [Orchestral] (2000) |
 | Xtreme Lead-1 [Techno/Electronica] (2000) |
 | Mo'Phatt [Hip-Hop] (2000) |
 | B-3 [Pipe organ] (2000) |
 | Planet Earth [World music] (2000) |
 | Orbit 3 [Techno/Dance/Electronica] (2001) |
 | Proteus Custom [Custom sounds] (2002) |
 | XL-1 Turbo [Techno] (2002) |
 | Turbo Phatt [Hip-Hop] (2002) |
 | Proteus 1000 [General] (2002) |
 | Vintage Pro [Classic synthesizers] (2002) |
This 4U rack model was designed to function as a rack-mounted, front-panel-programmable sound source. It was equipped with sixteen multi-function pads and the same number of programmable knobs and had an onboardsequencer.
In 2001 the Proteus line of modules was repackaged in the form of a line of tabletop units, the XL7 and MP7 Command Stations, broadly similar to the rack-mounted 2500 in features but featuring touch-sensitive pads suitable for recording drum patterns.
In 2001–2002, E-mu/Ensoniq released a trio of entry-level keyboards, essentially the keyboard versions of the Proteus 2500 module. The E-mu MK-6, XK-6, PK-6 and Ensoniq Halo featured the same 61-key keyboard and controls layout, but slightly different soundset.
Prodatum[12] is a cross-platform software editor for the Proteus 1000/2000, Command Stations and keyboard versions. prodatum is free software.
Proteum[13] is a free Windows software editor for Proteus and Command Stations.
Since Creative withdrew their provision of historical OS updates and manuals for most of the older E-Mu gear sometime around August 2011,[14] many of these files have been made available elsewhere, such asSynth Gear Docs Archive andthe E-Mu Legacy Archive.