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Chapter 4
Chapter 4 Creating a Patch
How a Patch Is Organized
The type of sound most commonly played on the XV-3080 is
called a Patch. Each Patch can contain up to four Tones.
fig.4-01.e
You can turn the Tones in a Patch on or off. Only Tones that
are turned on are heard when you play the Patch. (p. 84)
You can also specify how Tones 1 and 2 and Tones 3 and 4
will be combined (Structure). (p. 88)
How a Tone Is Organized
Tones are the smallest programmable unit of sound on the
XV-3080, and are the basic building blocks that make up a
Patch. You can’t play a Tone by itself – it can only be played
as part of a Patch or Rhythm Set. A Tone consists of the
following five components.
fig.4-02.e
WG (Wave Generator)
This selects the PCM waveform material that provides the
basis of the Tone. Two waveforms can be assigned to each
Tone.
The XV-3080 has 1083 different waveforms. (See Waveform
List p. 168.)
All Patches built into the XV-3080 consist of combinations of
Tones based on these waveforms.
TVF (Time Variant Filter)
This specifies how the frequency components of the Tone
will change.
TVA (Time Variant Amplifier)
This determines how the volume and panning of the Tone
will change.
Envelope
An envelope applies changes to the Tone over time. There
are separate envelopes for pitch, TVF (filter) and TVA
(volume). For example, you would use the TVA Envelope to
modify the way in which the Tone attacks and decays.
LFO (Low Frequency Oscillator)
Use the LFO to create cyclical changes – or cyclical
“modulation” – in a Tone. Each Tone has two LFOs. An LFO
can be applied to the Tone’s pitch settings, TVF (filter), and
TVA (volume). When an LFO is applied to pitch, a vibrato
effect is produced. When an LFO is applied to the TVF cutoff
frequency, a wah-wah effect is produced. When an LFO is
applied to the TVA volume, a tremolo effect is produced.
Example 1:A Patch consisting of only one Tone
(Tones 2–4 are turned off).
Example 2: A Patch consisting of four Tones.
Tone
1
Tone
2
Tone
1
Tone
4
Tone
3
Tone
4
Tone
2
Tone
3
WG
Pitch
Envelope
TVF
TVF
Envelope
TVA
Envelope
TVA
LFO 1
LFO 2
Tone
audio signal
control signal