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5. SOUND GENERATION 5. SOUND GENERATION

5. SOUND GENERATION

MAGMAsportsafully-edgedmonophonicsynthesiserwithfullyanaloguesignalpath–bestsuitedfor

powerful synthesiser hook-lines, melodies, and bass. The best way for MAGMA to unfold its sonic potential

lies in conjunction with its on-board sequencer. Playing MAGMA via an external MIDI device will also yield

great results, though.

Now that you have successfully managed MAGMA´s menu-based functions, you will easily get your teeth

into the synthesiser section.

5.1. Sound Generation Overview

ThefollowingtwogureswillbrieydisplayallsectionsandfunctionsofMAGMA´ssoundgeneration.More

detailed explanations will follow, please be patient. Please do not forget to carry on reading since the panel

has some interesting secrets to hide.

Most–butnotall–ofthepots(there,wesaiditagain!)havedirectaccesstojustonesingleparameter,

labelledonMAGMA´scontrolpanel.Thebuttonshaveseveralsettings,displayedbyspecicLEDcombina-

tions.

This is what‘s to be found under the hood of MAGMA´s sound generation. All sections are labelled in a spe-

ciccolour,correspondingtoMAGMA´sfront-panellayout.

The sound sources comprise the voltage-controlled oscillator (VCO) and a sub-oscillator (SUB), phase-syn-

ced to the VCO. They both send their waveforms into the mixer and further on into the voltage-controlled

lter(VCF)aswellasthevoltage-controlledamplier(VCA).Thereisalsoanexternalinputfedintothe

lter/ampliersection(forprocessingexternalsignals,moreaboutthislater).

Have a closer look at the two envelopes and the way they are connected to their modulation destinations:

ENV2 controls the VCA, ENV1 can be inverted and controls VCF and VCO pitch. LFO 2 controls the mixer,

LFO 1 has a go at VCO pitch as well as pulse-width of the square-wave. It can be inverted as well.

Finally,wendMIDIdata(thatis,theon-boardsequencer)controllingpitchandtriggeringENV2to

generate notes.

ANALOGUE BASSLINE SYNTHESIZER

VCA

• VOLUME: Output

Modulation from

ENV1 / Velocity

LFOs 1 + 2

• LFO 1: to VCO, VCF, PWM

• LFO 2: to waveform mixer

8 waveforms at 3 stages each

ENVELOPES 1 - 3

• ENV 1: VCA (ADSR)

• ENV 2: VCF (ADSR)

• ENV 3: Pitch (AD)

Inverse-function for ENV 2, 3

VCO (with Suboscillator)

• TUNE: Global / detune SUB

• OCTAVE: 8 settings for VCO / SUB

• PULSWIDTH: Manual

• SYNC: VCO to SUB

• SYNC L/M/E: 6 settings for PWM

• GLIDE: Time

• LFO: Mod-Amt for LFO 1 (Pitch)

Waveform Mixer

• SAW

• SQUARE

• SUB

• NOISE

individual LFO2 mod-amounts

for all waveforms

VCF (24dB Lowpass)

• CUTOFF

• RESO

• LFO: Mod-Amt LFO 1

• ENV: Mod-Amt ENV 2

• KEYB: Mod-Amt KB-Track

External input gain setting

on backside

VCO

VCF

VCA

SUB

OUT

EXT. IN

Sync

Saw

Square

Noise

ENV 3

(AD)

ENV 2

(ADSR)

ENV 1

(ADSR)

Inv Inv

LFO 2

LFO 1

MIDI

Velocity

MIDI

Note

Pitch PWM

Audiosignal

Modulation / Control

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