Commercial electronic instruments & sound cards - sound synthesis methods
Introduction
Instrument classification according to sound synthesis
Musical Instruments
Sound Cards
Dictionary
Introduction Today, comercial musical instruments, use all known sound synthesis methods. The application of a given method depends mainly on the type of instrument and it's price. Most modern instruments are digital. Recently synthesizers called "virtual analog" have become very popular. They use digital modeling of analog algorithms (mostly subtractive method). Composers, using modern instruments in addition with MIDI technology and computer squencers are able to record music that would have been out of their reach a few years ago.
Instruments classification according to sound synthesis Analog (Moog Modulars, Minimoog):
- synthetizers with analog circuits networks
- voltage controlled filters and oscillators
- warm and pleasant soundingDigital (Roland SY-22, Yamaha ANx1):
- using digital technology in sound generation
- playing sound samples or generating simple signals, which are transformed in various processesModular (Buchla, Moog):
- the oldest analog synthesizers
- each modul generates (VCO, noise osc.) or transforms signal (VCF, VCA, itp.).
- connections between moduls - cables 1/4"
Hybrid:
Drum Machine (Roland TR-808, AkaiMPC2000):
- playing only drum sounds
- internal sequencer which allows to programing of drum tracks
Software (Rebirth 338, Adsyn32):
- software called virtual synthesizers
- simulation of real instruments
Musical Instruments Review of synthesizers:
Sound Cards
Dictionary ADD - aditive method of synthesis
Ai2 - Advanced Itegrated Synthessis - a kind of wavetable synthesis designed by Korg
AMS - Analog Modelling System - virtual analog synthesis designed by Roland (JV-800)
AN - Analog Physical Modeling, virtual analog synthesis designed by YAMAHA (AN1x)
AWM - Advanced Wave Memory, wavetable synthesis (YAMAHA)
AWM2 - Advanced Wave Memory 2, wavetable synthesis designed by YAMAHA, samples are compressed by 40%
EG - Envelope Generator
FDSP - Formulated Digital Sound Processing, virtual technology aiding AWM synthesis (Yamaha EX5)
LA - Linear Arithmetic, wavetable synthesis designed by ROLAND
LFO - Low Frequency Oscillator
RCM - Realtime Convolution & Modulation, sample transforming by FM modulation
RS-PCM - wavetable synthesis designed by ROLAND, samples are compressed by 50%
VA - Virtual Acoustic, physical modeling (Yamaha VL-1)
VAST - Variable Architecture Synthesis Technology, wavetable synthesis designed by KURZWEIL
VCA - Voltage Controlled Amplifier
VCF - Voltage Controlled Filter
Virtual Analog - virtual analog synthesis design by CLAVIA
Sound and Vision Department ,Technical University - Gdansk.