Commercial instruments

 

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.

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Instruments classification according to sound synthesis


Synthesizer types:

Analog (Moog Modulars, Minimoog):
- synthetizers with analog circuits networks

- voltage controlled filters and oscillators
- warm and pleasant sounding

Digital (Roland SY-22, Yamaha ANx1):
- using digital technology in sound generation
- playing sound samples or generating simple signals, which are transformed in various processes

Modular (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


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Musical Instruments

Review of synthesizers:

Alesis

E-mu Systems

Kawai

Korg

Kurzweil

Novation

Roland

Yamaha

 

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Sound Cards

 

 

 

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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

 

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Sound and Vision Department ,Technical University - Gdansk.