ALESIS ANDROMEDA A6 User Manual

Page 188

Chapter 8: Pre Filter, Post Filter and Voice Mixes

186

NDROMEDA

A6 R

EFERENCE

ANUAL

AUDIO EXT IN
You can process external audio sources through the A6.

Examples of audio sources you can use include an electric
guitar, a high-impedance microphone, a digital sampler,
an audio CD player or cassette player, just to name a few.

You may want to process your external audio by the A6’s
Filters. And since the Filters can be modulated, you can

also shape the external source by an envelope and add a
host of other mod sources if needed.

EXT FILTER INPUTS/ V 1-16

Jack

V 1-16

Button

The

V 1-16

jack on the Andromeda’s back panel is a high-impedance input that

routes a mono or single-channel external audio source to all 16 of the A6’s Voices.
This means that you can process a mono signal polyphonically through the A6’s

filters, complete with all of the modulation normally available to the Filters:
envelope shaping, LFOs and the rest of the A6’s

mod sources.

To activate this function, press the

V 1-16

button on the

EXTERNAL INPUTS

module.

When you do this, a number of parameters will be automatically set to enable the
audio path. The

AUDIO EXT IN

input will be selected, the

AUD IN

switch will be

turned on, and the

NOISE

level will be set to 100 in

PRE FILTER MIX

(since this is the

path that the External Input uses). Use the

NOISE/EXTERNAL

knob to adjust the

level of this signal.

EXT FILTER INPUTS/VOICE 15

and

VOICE 16

Jacks

VOICE 15

and

VOICE 16

Buttons

The

VOICE 15

and

VOICE 16

jacks are high-impedance inputs that route a stereo or

two single-channel external audio sources to Voice 15 and Voice 16. These inputs
differ from the

V 1–16

jack in that, when activated, the Voice 15 and Voice 16

circuitry inside the A6 are reserved for external audio processing and are not
affected by the keyboard, received MIDI Notes or any other trigger sources.

To activate this function press the

VOICE 15

and/or the

VOICE 16

buttons on the

EXTERNAL INPUTS

module. When you do this a number of parameters will be

automatically adjusted so you can immediately hear the audio path. The

KBD

MODE

will be set to

MONO

, (voice 15 or 16), and

UNISON X

will be turned off.

FILTER FEEDBACK
A little trick that was used in the days of modular synthesizers to achieve a gritty,
nasty sound was to connect the output of the filter module back into the mix module.
Since the mix module is normally routed to the filters to begin with, a feedback loop
was created. (MiniMoog users might remember this capability by connecting the

Mini’s headphone output to the auxiliary audio input).

The A6 pre-wires this circuit for you internally: no patch cords required. Press the

FILTER FEEDBACK

button to enable this function and use the

NOISE EXT

knob to control

the feedback level. Please note that the level settings of the Filters –

FILT1 LP

FILT1 HP

FILT1 BP

and

FILT2 LP

– also affect the feedback. Use these five knobs in conjunction to

obtain the feedback you want.