Doepfer A-114v Bruksanvisning

Doepfer Inte kategoriserad A-114v

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doepfer System A - 100 Dual Ring Modulator A-114

1. Introduction

Module A-114 (Dual Ring Modulator) contains two

separate ring modulators.

A ring modulator outputs the product (Multiplication X •

Y) of the signals at inputs X and Y. It’s similar to a

VCA, but whereas a VCA only responds to positive

voltages at the inputs (2-quadrant multiplication), the

ring modulator responds to both positive and negative

voltages (4-quadrant multiplication).

The ring modulator thus provides a refinement of

amplitude modulation (AM). Ordinary amplitude modu-

lation will output the original carrier frequency fC as

well as the two side bands (fC - fM, fC + fM) for each of

the spectral components of the carrier and modulation

signals - but ring modulation cancels out the carrier

frequencies, and just lets the side-bands pass to the

output (see Fig. 1).

A ring modulator is used for the production of bell-like

sounds, alien voices, or just to produce new timbres.

X IN

A-114

Y IN

X • Y OUT

X IN

Y IN

X • Y OUT

RING MOD.

A-114 Dual Ring Modulator System A - 100 doepfer

2. Dual Ring Modulator - Overview

In / Outputs:

! X In : Signal input

" Y In : Signal input

§ X*Y Out : Output

➊

➋

➌

X IN

X • Y

OUT

A-114

RING MOD.

Y IN

X IN

X • Y

OUT

Y IN

RING MOD.

doepfer System A - 100 Dual Ring Modulator A-114

3. In / Outputs

! X In • " Y In

Sockets ! and " are the signal inputs for the A-114.

Patch the signals you would like to ring modulate into

these sockets.

The inputs need to have AC signals - so you should

use audio signals, not control voltages. For control

voltages, use a VCA.

§ X*Y Out

Socket § is the ring modulator Output.

4. User examples

Basic ring modulation

Fig. 1 shows a basic form of ring modulation using two

sine waves. This patch can provide bell- and vibes -

like sounds.

Fig. 1: Ring modulation with two sine waves

X IN

A-114

Y IN

X • Y OUT

RING MO D.

f = 440 Hz

f = 77.7 Hz f + f = 517.7 Hz

f + f = 362 .3 Hz

MCM

fC - fM = 362.3 Hz

Produktspecifikationer

Varumärke:	Doepfer
Kategori:	Inte kategoriserad
Modell:	A-114v
Typ av operation:	Touch
Färg på produkten:	Zwart
Inbyggd display:	Ja
Timer:	Ja
Vikt:	26100 g
Bredd:	890 mm
Djup:	447 mm
Sladdlängd:	1.3 m
Ljudnivå:	51 dB
Energie-efficiëntieklasse:	A+
Årlig-energiförbrukning:	39.1 kWu
Snäll:	Muurmontage
Avgasanslutningsdiameter:	900 mm
Belysningsstyrka:	422 Lux
Husmaterial:	Glas
Maximal utsugskapacitet:	441 m³/uur
Extraktionsmetod:	Recirculerend
Antal lampor:	2 gloeilamp(en)
Maximal återcirkulationskapacitet:	437 m³/uur
Antal hastigheter:	5
Intensivt läge:	Ja
Ljudnivå (intensiv hastighet):	70 dB
Strömförbrukning (i standby):	0.3 W
Boost position utgående recirkulationseffekt:	944 m³/uur
Boost position luftutblåsningseffekt:	1.007 m³/uur