Oscillator Parameters - Yamaha PLG150-DX Owner's Manual

Oscillator Parameters

The Oscillator parameters give you detailed control over the pitch or frequency of
the individual operators of a voice.
OSCILLATOR MODE/SYNC in the Edit Panel window:
To select the Oscillator Mode and Sync parameters in the Edit Panel window, click
Voice Select button [17] repeatedly. The editor toggles between Mode and Sync each
time you click this button.
• Oscillator Mode
Settings: Ratio, Fixed
This determines whether each operator changes pitch according to the notes playes.
When set to "Ratio" (Frequency Ratio Mode), the corresponding operator tracks the key-
board pitch normally. In other words, playing higher notes on the keyboard results in cor-
respondingly higher frequencies on the operator. When set to "Fixed" (Fixed Pitch
Mode), the keyboard does not affect the operator's frequency; the operator plays at the
same pitch no matter what key is played.
• The term "oscillator" refers to the frequency or waveform generating element of the operator.
• Oscillator Sync (Key Synchronization)
Settings: ON, OFF
This determines whether Oscillator Key Synchronization is on or off — whether or not the
waveforms of all operators start at the beginning of the wave cycle when a key is
pressed. Note that this affects all operators together.
When Sync is ON, the oscillators are automatically reset to the beginning of their wave-
forms each time you play a note. When sync is OFF, the waveforms continues in a "free
running" condition; when you play a note, the result will vary depending on where the
waveform is in the cycle. This creates subtle differences in the sound, even when you
play the same note repeatedly. Keep in mind that for certain voices, there may be little or
no audible effect.
Parameters /
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Parameter Descriptions