Yamaha AN1x Owner's Manual page 31

Sync Algorithm
Pressing the [SYNC/FM] KNOB PARAMETER GROUP
switch lets you use the CONTROL knobs to access the
parameters which affect the "master" and "slave"
oscillators which are part of the VCO1, as well as
configure how the FM (Frequency Modulation) signal is
applied to the master and/or slave oscillators. When
the "sync" is enabled VCO1 literally becomes two
oscillators in one, with the slave synced to the master.
By turning CONTROL knob 1 you can configure the
sync Algorithm, which either turns off the sync and
makes only the FM signal available, or lets you apply
the FM signal to either master or slave or both
oscillators. CONTROL knob 2 lets you access the Sync
Pitch parameter to create a difference in pitch between
the master and slave oscillators and control the
resulting harmonic interval. Other parameters available
let you apply modulation to the VCO1 oscillators with
the LFO1 and other waves.
VCO
VCO1
SYNC
MASTER
FM
VCO2
For details about the [SYNC/FM] parameters, see page 58.
PEG
Pressing the [PEG/LFO] KNOB PARAMETER GROUP
switch let you use the CONTROL knobs to access
parameters which control the Pitch Envelope Generator
(PEG), which determines how the pitch of a voice
changes over time—from when a key is pressed, held,
then release, and how long it takes for the sound to
terminate. CONTROL knob 2 lets you set the PEG
Depth, or pitch in semitones. CONTROL knob 1 lets
you adjust the PEG Decay, or time required for the
sound to reach its basic pitch from the PEG Depth
setting. CONTROL knob 3 lets you set the PEG Switch
to determine which VCO the PEG is applied to.
For more information about PEG Depth, PEG Decay, and PEG Switch parameters,
see page 55.
SLAVE
31
2. VCF Edit
Pressing the [VCF] KNOB PARAMETER GROUP switch
gives you access to the voltage controlled filter
parameters, which let you determine the characteristics
of the tone, or timbre of the voice, and configure the
Filter Envelope Generator (FEG).
VCF Cutoff And Resonance
By turning CONTROL knob 5 you can set the cutoff
frequency of the VCF Type (as designated in the
MIX/VCF group), which determines the point at which
specified frequencies are passed or cut off—i.e.,
filtered out. CONTROL knob 6 lets you boost the
harmonics near the cutoff frequency to apply
resonance. These two parameters are critical in
determining the timbre of the voice.
Range passed
Cutoff frequency
VCF Type = Low Pass Filter
FEG
CONTROL knobs 1-4 let you determine the Attack,
Decay, Sustain and Release values, respectively, to give
you precision control over how the timbre of the voice
changes over time—from when a key is pressed, held,
then released, and subsequently how long it takes for
the sound to terminate. CONTROL knob 7 lets you set
the FEG Depth, or range of movement of the cutoff
frequency.
Cutoff frequency
Sustain
Attack Decay
Key on
For more information about [VCF] parameters, see page 64.
Cutoff range
Frequency
Time
Release
Key off