Roland VC-1 D-50 - Manual (Page 38)

38
Overview of the VC-1
Throughout the process of programming the D-50, the operation remains simple and logical.
You can think of the D-50 having powerful synthesizers built in. Each of these hypothetical synthesizers
could behave like a convention analog synthesizer, or a PCM sampled synthesizer. Any combination of
two synthesizers can achieve some remarkable cross-modulation effects.
fig.07-02e(Tone)
Partial
The VC-1 (D-50) appears to have four powerful synthesizers built in. Each of these hypothetical
synthesizer could behave like a conventional
analog synthesizer , or a PCM sampled synthesizer .
Consequently, They are referred to as Partials , since they are far more than just a pure synthesizer. These
Partials are combined in pairs to form a TONE , A Tone could either be a mix of the two Partials, or they
could take advantage of the LA version of cross modulation.
Synthesizer sound generator
A Synthesizer sound generator works like a conventional analog type synthesizer with an oscillator, a
filter, an amplifier and two ENV’s.
fig.07-03(BlockDiagramSynth)
The Basic Concept of a Tone
Chorus
Tone Name
Partial 1
Partial 2
Equalizer
Structure
ENV for pitch control
3 LFO's
Common
Tone
1
2
3
1
Pitch
Processor
Envelope
Generator
TVA
Sawtooth
Square
DSP
Filter
Envelope
Generator
TVF TVA WG
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