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# Factorio Prototype Docs Version 2.0.77

# VariableAmbientSoundVariableSound - Prototype Docs

## VariableAmbientSoundVariableSound :: struct

## Properties

- default
- sorted

layers | :: array[VariableAmbientSoundLayer] | Cannot be empty.
Cannot be empty.
intermezzo optional | :: Sound |
states | :: array[VariableAmbientSoundState] | The first state is used as the starting state and cannot be an intermezzo state. [...]
The first state is used as the starting state and cannot be an intermezzo state. [...]
length_seconds | :: uint32 | Cannot be zero.
Cannot be zero.
alignment_samples optional | :: uint32 | Number of audio signal samples (default sampling frequency is 44.1kHz) defining a time grid. [...]
Number of audio signal samples (default sampling frequency is 44.1kHz) defining a time grid. [...]

layers | :: array[VariableAmbientSoundLayer] | Cannot be empty.
Cannot be empty.
length_seconds | :: uint32 | Cannot be zero.
Cannot be zero.
states | :: array[VariableAmbientSoundState] | The first state is used as the starting state and cannot be an intermezzo state. [...]
The first state is used as the starting state and cannot be an intermezzo state. [...]
alignment_samples optional | :: uint32 | Number of audio signal samples (default sampling frequency is 44.1kHz) defining a time grid. [...]
Number of audio signal samples (default sampling frequency is 44.1kHz) defining a time grid. [...]
intermezzo optional | :: Sound |

## Properties

### layers :: array[VariableAmbientSoundLayer]

Cannot be empty.

### intermezzo :: Sound optional

### states :: array[VariableAmbientSoundState]

The first state is used as the starting state and cannot be an intermezzo state.

Cannot be empty.

### length_seconds :: uint32

Cannot be zero.

### alignment_samples :: uint32 optional

Default: `12600`

Number of audio signal samples (default sampling frequency is 44.1kHz) defining a time grid. Music samples are aligned with this grid when queued.

Type used in

- AmbientSound::variable_sound