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Roland D-05  Boutique

Price:300€ / manual / schematics (2018)

Roland D05

Overview and synthesis

OVERVIEW The After the V-synth emulation, after 30 years Roland decided for a modern remake of iconic synthesizer based on linear synthesis, the D50 (rackmount is the D550). The d05 is a very small module (keyboard can be add with K25m boutique mini keys) and can be operated on battery. Of course after 3 decades some technical enhancement including USB and more memory banks, but the sound is pretty the same, and factory come with fully loaded famous sounds e.g Digital Native Dance, Soundtrack, Glass Voices, Nightmare, OK Chorale, 

SYNTHESIS digital L.A synthesis engine is still considered today as one of the most interesting ever made! it is not like a wavetable synthesizer, as no harmonic spectrograms are involved in, instead, it is based on short attack PCM transients for limiting memory usage. Psychoacoustic facts demonstrate that "attack" segment is the most important part for the sound identification by human ear. 
 LA synthesis WG Wave Generator is a mix of 2 syntheses: 
- 2 Digitally generated basic waveforms sawtooth & square wave, a kind of primitive VA
- PCM wavetable


About L.A Synthesis

L.A STRUCTURE HIERARCHY L.A minimal part is the PARTIAL composed by 2 UPPER tones + 2 LOWER tones then 4 combined tones make a PATCH; TONE has value for relation between both partials and each partial is like an oscillator with various synthesis chain elements.
synth WG (voice) + TVF (filter) + TVA (amplitude)
WAVE GENERATOR  PCM wavetable + a digital waveform generator. In total there are 101 sound waves available: 
-  47 Transient PCM acoustic
- 29 Transient PCM spectral loops
- 23 Transient PCM normal loops
- 2 digitally generated sawtooth and square wave

ALGORITHMS the WG combines partial synthesis elements with a digital ring modulator in 7 possible pathways or algorithms

Roland d05

Filter, Lfo and envelope

FILTER  structure is based on the TVF -time variant filter- which is a digital 4-poles resonant lowpass filter.

LFO3 delayed modulators (shapes: saw, triangle, random and square) and 3 destinations:
- LFO to amplitude 
- LFO to pulse width 
- LFO to filter cutoff

ENVELOPE 2 main EGs, all partials have their own EG for both amplitude + filter, for a total of 4 TVF EGs and 4 TVA EGs:
- EG1 amplitude : 5 segments + 5 times
- EG2 filter : 5 segments + 5 times


Roland D-05 Technical Data

Roland D-05 Specs

Polyphony 16 voices
Patch Memory Preset Patch: 6 x 64
User Patch: 8 x 64
Pattern: 64
Controllers VOLUME knob
Ribbon controllers C1, C2

Left cursor/F1/F2/right cursor button and indicator
CHASE button and indicator
PORTAMENTO button and indicator
EDIT button
EXIT button
SEQUENCER button and indicator
WRITE button
Numerical keys (0-9, SHIFT, ENTER)
PATCH BANK buttons and indicators (1-8)
PATCH NUMBER buttons and indicators (1-8)

Power switch
Step Sequencer 64 steps
Arpeggio Type: 1 oct (Up, U+D, Down), 2 oct (Down, U+D, Up)
Step: 1/4, 1/8, 1/16, 1/4T, 1/8T, 1/16T
Display 16 characters 2-line LCD
Connectors Phones: Stereo 1/8" / 3.5 mm
Output: Stereo 1/8" / 3.5 mm
Mix Input: Stereo 1/8" / 3.5 mm
MIDI: In, out connectors
USB Port: Micro-B type (audio, MIDI)
Power Supply 4 x rechargeable NiMH batteries (AA, HR6)
4 x alkaline batteries (AA, LR6)
USB bus power
Current Draw 500 mA (USB bus power)
Expected Battery Life Rechargeable NiMH Batteries: Approximately 5 hours
This can vary depending on the specifications of the batteries, capacity of the batteries, and the conditions of use
Options Keyboard Unit: K-25m
Boutique Dock: DK-01
Dimensions 11.8 x 5.0 x 1.8" / 300.0 x 128.0 x 46.0 mm
Weight 2.0 lb / 0.9 kg (with batteries)

Roland D05 and d50

Do you use this machine ? do you like it? You do not agree with our review?  Let us know in the comment field just below 



Audio demo and video 

Roland D05 Roland D05
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