Fostex LM16 manual Mixer basics, Signal flow of the mixer

Model LM16 [Mixer basics]

Mixer basics

Signal flow of the mixer

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.

INPUT

LOW CUT

LIMITER

TRIM

A/D

HIGH

MID EQ

EFF	AUX1 AUX2 AUX3 SOLO	OUTPUT LIMITER
		D/A
		MONITOR	PHONES
		OUTPUT
		LIMITER
			D/A
		AUX SEND 1
			D/A
		AUX SEND 2
			D/A
		AUX SEND 3

PHONES

L

MONITOR

R

AUX SEND 1

AUX SEND 2

AUX SEND 3

LO
SOLO
AUX2
PRE/POST AUX1
AUX3
EFF	ST
	1-2
PAN	3-4

Internal

Effector

EFFECT

TO STEREO

STEREO

L R

EFFECT TO AUX (1, 2, 3)

EFFECT TO GROUP (1, 2, 3)

	GROUP
1	2	3	4

EFF SEND

TO MONITOR OUT

PHONES

OUTPUT

LIMITER

D/A EFF SEND

L

TO STEREO BUS

R

D/A	1
D/A	2

GROUP OUT

D/A	3
D/A	4

GROUP FADER (1, 2, 3, 4)

OUTPUT

LIMITER

STEREO FADER

TO MONITOR OUT

PHONES

D/A L

STEREO OUT

D/A	R
D/A	L

STEREO MIX OUT

D/A R

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