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Mixer basics, Signal flow of the mixer, Model lm16 [mixer basics – Fostex LM16 User Manual

Page 27

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Model LM16 [Mixer basics]

Signal flow of the mixer

Mixer basics

A mixer accepts audio signals and modifies them, then mixes them.

The following diagram shows how the input signals flow through the mixer section of the LM16.
As the diagram indicates, an analog signal from the [INPUT] connector is level-adjusted by the
[TRIM] control and converted to digital, then sent to the channel fader via the EQ.
After the channel fader, the pan control adjusts the left and right (or odd and even) balance of
signal sent to stereo left and right busses (or odd and even group busses).
Then the stereo signal is finally level-adjusted by the [STEREO] fader and output from the [STE-
REO OUT (L, R)] connectors.

A buss sums signals and mixes them. In the diagram below, busses are shown as pipes.
The LM16 provides the following eleven busses: stereo busses (L, R), group busses (1, 2, 3, 4), AUX
busses (1, 2, 3), effect buss and solo buss. Each buss sums signals. The mixed signal may be D/A
converted and fed to an external device, or directly fed to the internal effects.

Internal

Effector

A/D

ST

1-2

3-4

TRIM

INPUT

EFF

AUX1 AUX2 AUX3

LO

HIGH

MID

PRE/POST

AUX1

AUX2

AUX3

EFF

PAN

SOLO

L

R

1

2

3

4

STEREO

GROUP

AUX SEND 1

AUX SEND 2

AUX SEND 3

MONITOR

PHONES

PHONES

MONITOR

L

R

AUX SEND 1

AUX SEND 2

AUX SEND 3

1

2

3

4

STEREO OUT

L

R

GROUP OUT

D/A

D/A

D/A

D/A

D/A

D/A

D/A

D/A

L

R

STEREO MIX OUT

D/A

D/A

D/A

D/A

EFFECT TO AUX (1, 2, 3)

EFFECT TO GROUP (1, 2, 3)

EFFECT

TO STEREO

SOLO

EQ

STEREO FADER

GROUP FADER (1, 2, 3, 4)

TO MONITOR OUT

PHONES

L

R

TO STEREO BUS

TO MONITOR OUT

PHONES

EFF SEND

EFF SEND

D/A

LOW CUT

LIMITER

OUTPUT

LIMITER

OUTPUT

LIMITER

OUTPUT

LIMITER

OUTPUT LIMITER