Roland D-50 - Tvf; Tva

OUTLINE OF TONE PARAMETERS
a. WG (Wave Generator)
In the WG (Wave Generator), the pitch and waveform are controlled.
@Pitch
The basic pitch of a Partial (sound generator) can be set here,
The pitch is a Common parameter, and is therefore controlled b
@ P-ENV and @ LFO-1. :
@ Waveform (PCM Wave Number)
This selects the waveform of the sound source. When a synthesizer
sound generator is selected, the waveform can be controlled by the
® Pulse Width controls.
@Pulse Width
This changes the waveform of the sound source. The pulse width
is controlled by any LFO (=Common parameter).
b. TVF (Time Variant Filter)
This filter passes lower frequency harmonics and cuts off the higher
ones. By changing the cutoff point and the resonance, the waveform
changes.
@Cutoff Frequency
This sets the cutoff point. The cutoff point can be controlled by
@®TVF ENV and any LFO (=Common parameter),
@ Resonance
This emphasizes the cutoff point, making more unusual or electronic
sounds.
c. TVA (Time Variant Amplifier)
This controls the volume of the Partial.
®@ Level
This determines the volume of the sound. When a synthesizer
sound generator is used, the level can be controlled with the @
TVA ENV and any LFO (Common parameter). When a PCM sound
generator is used, the @TVA ENV controls the level.