Yamaha SY-77, Operating Manual

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Traditional FM: The AFM tone generator can be used alone to produce any
sound that the DX series was capable of, and much more.
AWM sample playback: The AWM tone generator can be used along to
playback high quality digital samples from internal AWM memory or an
optional waveform card.
AWM sample playback mixed with FM: The sounds of the AWM and AFM
tone generators can be layered.
FM modulated by AWM: AWM digital samples can be used to modulate
one or more operators in an FM algorithm, for very complex FM sounds.
AWM sample pl FM modulated by AWM: In a variation of the
original sound of the AWM sample can be mixed with the complex AFM
sound.
For techniques which use both AWM and AFM ( ) there are two addi-
tional possibilities.
l
Both AFM and AWM can be used to create sustaining sounds.
l
The AFM and AWM tone generators can be used “LA” style, with short
transient AWM waveforms used to create an attack and the AFM tone
generator used to create the sustain component of the sound (or vice versa).
Since each voice can use one two or four AFM or AWM elements, these
synthesis strategies can be combined in complex ways.
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