Procussion

Maximum Percussion Module

Overview The Procussion is a 32 voice multi-timbral sample based synthesizer module that plays percussion instruments. It contains hundreds of different drum and percussion samples, which can be played from a keyboard or MIDI drum pad. The Procussion has 4 MB of 16-bit percussion samples, selected from the Emulator III sound library and stored in ROM.

The Procussion can manipulate these basic samples into an almost limitless number of entirely new percussion sounds, combining parts of one instrument with another or with any of a selection of digital waveforms stored in ROM. The 16 bit samples are arranged into 128 kit locations, 64 of which are user-programmable.

Expansion The Procussion can not be expanded.

Presets The Procussion has 128 presets (64 of which are user programmable). E-mu Systems created a preset library on PC floppy diskettes. The diskettes contained a SysEx file and two DOS programs for sending and transmitting the files to the synthesizer module. There are 2 volumes for the Procussion module and 64 presets in each volume.

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LCD The Procussion uses a standard green 16 x 2 LCD display, augmented by a MIDI activity LED, and LED's for Master, Edit Menu, Preset, and Home.

Configuration A number of sampled percussion instruments are mapped across the keyboard or set of drum pads. Each instrument has many individual attributes such as tuning, volume, pan, etc.

The Kit is a complete set of all program parameters for a set of up to 24 Procussion drum Stacks. Stacks can be made of up to 4 percussion Instruments,which are assigned to MIDI key ranges called Zones.

Up to 24 Zones may be assigned in one kit. The instruments in a stack can be modulated in many ways or switched on and off depending on various parameters such as velocity (how hard a drum is played) or perhaps the position of the high hat pedal.

Inside The Procussion uses the standard early Protues hardware and Revision A motherboard, with a Motorola 68000 processor, eight ROM chips for the samples, and six Burr Brown 16-bit DAC's (PCM56P). There are also a couple of custom surface mount ASIC chips (a Toshiba Gate Array, and a special E-mu chip).

Diagnostics To reset the module hold down "master" and "edit" while you switch it on. This puts you in diagnostics mode, so select "initialize". It will wipe out your user-definable patches and reset the module back to its factory state.