Purpose

Mix4 Audio sums up to four audio sources into one stereo output, with independent gain on each input and a master level. It is the basic summing node for combining instruments, effect returns, and live sources into a single bus.

Use

Wire your sources into the inputs, set each input gain to balance them, and use Master for the overall bus level. Wire out toward an effect chain, a recorder, or Device Out. The first two inputs are the main signals; the second two are there when you need to fold in extra sources.

Inputs and outputs

• Input 0: in1 audio. Required.
• Input 1: in2 audio. Required.
• Input 2: in3 audio. Optional.
• Input 3: in4 audio. Optional.
• Output 0: out emits the summed mix. The output shape follows in1.

All inputs accept mono or stereo PCM. Mono sources are spread across the output channels.

Controls

• Gain1 to Gain4: per-input level. An input with no connection is skipped.
• Master: overall output level applied after summing.
• Normalize: how the summed signal is contained.
  • none: straight sum, no limiting.
  • softclip: clamps peaks so the mix cannot exceed full scale.
  • average: divides the master level by the number of connected inputs, keeping loudness steadier as you add sources.

Notes

• Gains and master move smoothly when changed, so level edits do not click.
• Use softclip when summing hot sources that would otherwise overshoot. Use average when you want adding sources to keep a consistent overall level.
• The output channel layout matches in1, so wire your reference source there.

Ports

Inputs

• in0..3 row required
  audio_pcm_f32_mono_v1audio_pcm_f32_stereo_v1 4 slots

Outputs

• out row
  mirror_input

Parameters

Gain1 (Gain1) Float op('mix4_audio').par.Gain1

Default:

1

Range:

0 to 4

Gain2 (Gain2) Float op('mix4_audio').par.Gain2

Default:

1

Range:

0 to 4

Gain3 (Gain3) Float op('mix4_audio').par.Gain3

Default:

1

Range:

0 to 4

Gain4 (Gain4) Float op('mix4_audio').par.Gain4

Default:

1

Range:

0 to 4

Master (Master) Float op('mix4_audio').par.Master

Default:

0.8

Range:

0 to 4

Normalize (Normalize) Menu op('mix4_audio').par.Normalize

Default:

none

Options:

none, softclip, average