Fairlight CMI II
In 1982, the CMI II, a slightly improved version of the CMI, was created.
The sampling rate turned from 24 to 32Khz, still in 8 bits.
The channel cards have been improved.
A MIDI card is available as an option.
But the main innovation was the inclusion of the “R page”, the first sequencer with a graphic representation of the 8 tracks and notes. It was based on a system of patterns (sets of bars) that you could repeat, copy, paste… You could also quantify the notes. The R page was a revolution in the use of sequencers. Some musicians bought a CMI only for this graphic sequencers.
- Dual 8-bit 1 Mhz Motorola 6800 processors
- 8 channel cards with 16kb waveform RAM = 8 voices of polyphony
- 64Kb system RAM (QDOS)
- Two 8″ floppy disks: double sides, simple density (512Kb)
- Non-weighted 6 octave keyboard, featuring key velocity sensitivity, with 3 sliders and 2 switch buttons that can be alloted to various parameters (vibrato, volume, sustain… ).
A second keyboard is proposed as an option (without the control buttons)
- Monochrome monitor which was used to visualise waveforms and to edit parameters: resolution was 512 x 256 pixels
- Alphanumeric keyboard
- Additive synthesis with FFT (Fast Fourier Transform)
- 32Khz 8-bit sampling
- Sequencer (page C) and graphic sequencer (page R)
- MCL: Musical Composition Language
The cards are arranged on the CMI-25 motherboard as follows:
|CMI-02||Master card: control of 8 channel cards, ADC sampling, timerfunctions for sequencer and MCL||1|
|CMI-01-A||Channel card with 16Kb waveform RAM|
CEM3320 (Rev 1 & 2) or SSM2045 (Rev 3 & 4) Filter
|3 to 10|
|CMI-07||Analog interface card (optional): 16 inputs/outputs to control analog synthesizers||11|
|Q096||64Kb system RAM card||13 to 15|
|Q032||Processor control card||16|
|Q026||Dual 6800 processors||17|
|QFC2||Floppy disk controller||18|
|Q025||16Kb video graphics RAM||20|