Roland D-10

Multi Timbral Linear synthesizer (1988)

The D-10 cut-down version and simplified synth engine of the D-50’s LA sound generator, but with multitimbral capability and rhythm machine functions. 


OVERVIEW 61 key (velocity sensitive) with LCD display, a card slot for RAM (no waveforms expansion).
Simple pitch bender modulation on the left. 

- Roland D110 is the rackmount version
- Roland D20 same but with sequencer and floppy disk storage
- Roland D5 simpler version
- Roland MT32 famous gaming consumer version, with same sound generation
- Roland PG-10 Programmer for quick edit

Terminal connectors:
- Midi Interface (no Thru port)
- main signal out
- headphones out
- power switch
- memory card slot
- pedal switch control for start stop and sustain


OSCILLATORS  intel 16 bits CPU 8097BH manages 32 voices (DAC PCM54 BB) polyphony or partial (a patch is composed by up to 4 partial); each partial being either a synth waveform (saw tooth or square with variable width) or any one of the internal 256 PCM samples. Finally Each pair of partials (1&2 and 3&4) an be assigned a Structure (13 models, see below).

PCM The sample PCM are divided into two banks, each with 128 samples.
PCM A: transient attacks (The attack samples concentrate on providing the attack envelope segments of behavior of instruments. )
PCM B:  same as A but in looped form. 
NOTE: 63 samples are dedicated to drums and percussion

SOUND HIERARCHY very confusing... typical of 90 roland. 
"The D-10 can produce a maximum of 32 voices using 32 Partials at the same time, A partial is the smallest unit of sound within the. D-10. A Tone consists of one to four Partials. A Tone made of only  one Partial can be played 32 voice polyphonically, but a Tone Of two  
Partials has 16 voices, and a Tone of four Partials is 8 voice polyphonic. Finally Multi Timbrals".... allll righhhttt


The partial combines partial synthesis elements with a digital ring modulator in 7 possible pathways or algorithms: (p= pcm sample / s= digitally generated wave).
Compared to D50, the D10 adds 6 more structures, 5 with ringmods + 2 with linear partials (sample / awve)

LFO single triangle-shapped modulator , very simple compared to bigger D50.

ENVELOPE 3 main groups for pitch, amplitude and filter with very similar specs: 5 times+ 4 times.

FILTER: digital resonant lowpass for SYNTH part (not pcm) like D50 

Effect , drum machine and memory

EFFECTS eight onboard digital effects: small and medium rooms, medium and large halls, plate, and three delays. Additionally you can set reverb/delay time and effect level with some minal edit.

DRUMS The built—in rhythm machine stores 32 different preset rhythm patterns + another 32 user programmable patterns.
 You can make  a song (or tune) in a rhythm track by using those rhythm patterns. Also an internal metronome  

MEMORY  Preset Patches: 128  +  User Patches: 64. 
Sounds can be saved to Midi sysex dump or to memory card (models: M256 , M512e, M128)

Roland D10 Specifications

Year Released: 1988
Model: d10
Country: Japan
Original price: $1395
Keyboard: 61 keys with velocity 
Screen: 16x2 character backlit LCD
Polyphony: 32 notes
Multitimbral: 9 parts 
Preset Patches: 128
User Patches: 64 
Preset Drum Kits: 1 
ROM: 128 timbres, 128 tones, 63 drum sounds 
Effects: 8 Effects

Power Consumption: 20 watts 
Dimensions: 974 mm x 301 mm x 98 mm 
Weight: 19 lbs. 7 oz.

D10 needs often overhaul for key and contact switch.

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