What Is An Afm Element - Yamaha SY77 Operating Manual

An AFM element consists of four main blocks. The FM block uses six operators to create a complex
sound and determines the pitch and basic tone, the Filter block modifies the tone, the Amplifier block
modifies the volume, and the Pan block moves the sound between left and right outputs. Each block can be
controlled in a variety of ways.
Many different ways to
control sound
The FM block determines
pitch, tone, and volume
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What is an AFM element

The following diagram shows how the various blocks in an AFM element are
related, and how they can be controlled.
As explained in the previous section "What is an AWM element", an AFM
element can be controlled in various ways using EG, note number, key velocity,
LFO, and controllers.
The basic sound of each AFM element is produced by six FM operators
arranged in an algorithm. The FM block can be controlled in various ways to
modify the pitch, tone, and volume of the sound.
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EGs of the six operators determine how the volume and tone will change
over time. Each operator EG can also be affected by the note number or
key velocity.