Tone Generator Block - Yamaha S90 ES Owner's Manual

Tone Generator block

The tone generator block is what actually produces sound in response to the MIDI messages received from the controller
block, and from an external sequencer.
Internal AWM2 Tone Generator and optional Plug-in board
The tone generator block in the S90 ES consists of the built-in AWM2 and optional Plug-in boards.
AWM2 (Advanced Wave Memory 2)
AWM2 (Advanced Wave Memory 2) is a synthesis system based on sampled waves (sound material), and is used in many
Yamaha synthesizers. For extra realism, each AWM2 Voice uses multiple samples of a real instrument's waveform.
Furthermore, a wide variety of envelope generator, filter, modulation, and other parameters can be applied to the basic
waveform.
Plug-in board
For details, see page 99.
Voice, Performance, and Multi
This instrument features three different types of programs that form the basis for creating and playing sounds.
Voice
A Voice is a program that contains the sonic Elements for generating a specific musical instrument sound. Each Voice
consists of up to four Elements (Normal Voice) or up to 73 Keys (Drum Voice). Each Voice is created by editing parameters
unique to each Element/Key and parameters common to all the Elements/Keys in the Voice mode (page 44) or in the Multi
Voice Edit mode (page 73).
Performance
A Performance is a program in which multiple Voices (Parts) are combined in a layer, or in other configurations. Each
Performance can contain up to four different Parts (Voices). Each Performance can be created by editing parameters
unique to each Part and parameters common to all the Parts in the Performance mode (page 53).
Multi
A Multi is a program in which multiple Voices are assigned to Parts for multi-timbral play in the Multi mode. Each Multi can
contain up to 34 Parts. Each Multi can be created by editing parameters unique to each Part and parameters common to all
the Parts in the Multi mode (page 72).
Internal AWM2
Tone Generator
Internal Structure (System Overview)
Plug-in boards (optional)
Up to three boards can be installed.
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Owner's Manual