Roland M-OC1
Orchestra module (1995)

The sound expansion series were standalone version of SR-JV expansion cards for modules like JV-1080 or 2080 and workstations like Xp-50.

The MOC1 is the equivalent of the SRJV-02 orchestral expansion.

RACKMOUNT 1 unit module with 11 buttons and a 7-segments display.

Rear panel terminal connectors:
- Midi interface
- main output
- signal line input (signal not processed)


Front panel terminal connectors:
- headphones.

 

VOICE core 16 bits microcontroller HF6415108F (part of HD6415 / h8 family) manages 28 voices polyphony.
Synthesis based on subtractive synthesis: each patch is composed by 1, 2, 3 or 4 PCM samples layers. The module is more like a preset machine since all sounds are ready to go and it not possible to edit from direct panel - most parameters can be changes only using an external Midi SYSEX strings generator.

 

WAVETABLE 188 samples mainly focused on orchestral instruments including strings, harps, oboes, horns, trumpets, violas, cellos, trombones and more.
Also many instruments like violins have been recorded in various modes including:
- spiccato
- fast
- legato
- ensemble.

 

PERFORMANCE MOC1 handles up to 7 parts + 1 drum.
Each part can be set with a single patch with variable multitimbral parameters:
- reverb and chorus level
- volume / panning
- pitch detune
- Midi channel.

FILTER section is based on digital TVF Time-Variant-Filter and 3 modes:
- lowpass
- bandpass
- highpass.

LFO 2 modulators features 7 shapes: triangle, sinewave, sawtooth, trapezoidal, random, sample & hold and a variation called chaos random.
Destinations are:
- LFO 1: amplitude
- LFO 2: filter.

ENVELOPE each layer features 3 EGs:
- EG1 amplitude: 4 stages ADSR
- EG2 filter: 4 stages ADSR
- EG3 pitch: 4 stages ADSR
Special legato articulation control from M-SE1 has not been implemented.

EFFECTS section manages:
- 6 reverbs + 2 delays
- 3 choruses.
This section also cannot be edited or applied to a specific multitimbral part as it is only master.

MEMORY:
- 18 performances
- 226 patches
- 2 rhythm sets
- 1 global setup
There is no patch RAM slots for save andperformance can bulk dumps data to Midi for recall.

 

 

MODIFICATION some experimental bending on this machine but I did not have some great results! there's a short demo in the relative section below check it out.

 

RELATED FAMILY:

M-bd1 BASS DRUM - Drum kits M-dc1 DANCE - loops and sample M-se1 STRINGS - orchestral strings M-vs1 VINTAGE - analog synth M-gs64 CANVAS - Gs midi module

 

VST PLUGIN / SAMPLED VERSION there are some free and commercial samples set:

	name	price	link	demo
	polynominal.com	FREE MOC1- sampled strings kit for free!! A MOC1 sample pack FROM US!!		n/a

 

AUDIO DEMO

factory demo 1 factory demo 2 factory demo 3 factory demo 4 circuit bent unit (experimental noises)

 

YOUTUBE VIDEO CLIP SELECTION     demo