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 # sound:compute octave levels from signal

 Last update: 31.07.2026 

**Version: 0.0.0**

## Description

Compute octave-band levels from a time-domain signal input.

## Inputs

InputNameExpected type(s)Description**Pin 0**   
Requiredinput\_signal[`field`](../../core-concepts/dpf-types.md#field)Input signal for the levels' computation.## Outputs

OutputNameExpected type(s)Description**Pin 0**levels[`field`](../../core-concepts/dpf-types.md#field)Octave-band levels. The returned level unit is the square of the input signal's unit (for example, if the signal is in Pa, the levels will be returned in Pa^2).The field support contains the octave-band center frequencies.## Configurations

NameExpected type(s)Default valueDescription**mutex**[`bool`](../../core-concepts/dpf-types.md#standard-types)falseIf this option is set to true, the shared memory is prevented from being simultaneously accessed by multiple threads.## Scripting

**Category**: sound

**Plugin**: sound

**Scripting name**: None

**Full name**: None

**Internal name**: compute\_octave\_levels\_from\_signal

**License**: avrxp\_snd\_level1

## Changelog

- Version 0.0.0: Initial release.