Yamaha Music Production Synthesizer Manual Do Utilizador

Página de 300
34
MOTIF  Basic Structure
System Overview
Basic Str
ucture
Tone Generator block
The tone generator block is what actually produces sound in response to the MIDI messages received from the 
sequencer block, the controller block, and from the MIDI IN connector or the USB connector. 
The following example illustrates the signal flow within a Voice. 
n For details on the Voice structure, see page 40.
Internal AWM2 Tone Generator and optional Plug-in board
The tone generator block in the MOTIF consists of the built-in AWM2 and optional Plug-in units.
● AWM2(Advanced Wave Memory2)
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. 
You can create your own waves via microphone or from external audio equipment by using the Sampling function. 
These are then stored in internal RAM and can be used just like the preseet waves.
One voice can use up to four waves (elements) in AWM2 tone generator. 
n AWM2 is not just limited to general musical instruments (Normal Voices). It can also be used for setting up percussive 
instruments (Drum Voices). For details on Normal and Drum Voices, see page 45.
● Plug-in board
Plug-in Boards give you an enormous amount of additional sonic flexibility and power. When installed, they work 
seamlessly and transparently within the system of the MOTIF — meaning that you can use their sounds and 
functions just as if they were built right into the MOTIF at the factory. 
The boards that are available for and can be installed to the MOTIF are described below. 
Up to three Plug-in boards can be installed to the MOTIF. These boards are not simply a source of more Voices; they 
are also tone generators in their own right and extend the system-level specifications such as maximum polyphony. 
In addition, they allow you to use synthesis systems besides AWM2. You can play Plug-in Voices just like ordinary 
internal Voices and use them as Parts in a Performance (page 42). 
The MOTIF is compatible with the Modular Synthesis Plug-in System (see next page). There are three types of 
Modular Synthesis Plug-in System-compatible Plug-in Boards: Single Part, Multi-Part and Effect Plug-in Board. Using 
these, you can build your own system based on the sounds you require. 
Voice
Osillator
See page 46
See page 47
See page 47
See page 45
Pitch
Pitch Envelope
Generator
Filter Envelope
Generator
Low Frequency
Oscillator
Amplitude Envelope
Generator
Filter
Amplitude
Element 1
Element 2
Element 3
Element 4
PEG
FEG
LFO
AEG
Internal AWM2
Tone Generator
Plug-in board (optional)