Yamaha Electone EL-900 Owner's Manual page 35

About the Virtual Acoustic Synthesis ﾑ VA voices of the Lead
Voice 2 Section
Unlike previous tone generation systems which use oscillators, function
generators, preset waveforms or samples to produce sound, Yamaha
Virtual Acoustic (VA) Synthesis applies sophisticated computer-based
ﾒphysical modelingﾓ technology to musical sound synthesis. In the same
way that computer ﾒmodelsﾓ are used to simulate weather systems or the
flight characteristics of aircraft in the design stage, the Virtual Acoustic
Synthesis simulates the very complex vibrations, resonances, reflections
and other acoustic phenomena that occur in a real wind or string
instrument.
VA Advantages
The VA voices offer many advantages in terms of musical performance. Not just
in terms of sound, but also in terms of the ﾒbehaviorﾓ that makes acoustic
instruments so ﾉ well, musical! Yamaha Virtual Acoustic Synthesis is simply the
most musical tone generation system ever created.
･ The VA voices sound better, have more depth, and are more realistic in
the musical sense than any other tone generation system.
･ Simply playing a note in the same way does not always produce precisely
the same sound. The instrument is responsive and ﾒalive.ﾓ
･ Note-to-note transitions have the same continuity exhibited by acoustic
instruments. What goes on in between the notes is just as important
musically as the notes themselves.
Driver — generates physical energy
Mouthpiece
Embouchure
Bow
Pipe/strings — simulates resonation
Calculates the
speed of the
resonated air
NOTE:
Single-ended
See page 119 for the information on the
pipe (saxophone)
AWM/FM.
Double-ended
pipe (flute)
Strings
2
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