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 # sound:get frequency weighting (A, B, C)

 Last update: 31.07.2026 

**Version: 0.0.0**

## Description

Retrieve the A-, B-, or C-weighting values, in dB, at the specified frequencies.

## Inputs

InputNameExpected type(s)Description**Pin 0**   
Requiredfrequencies[`vector<double>`](../../core-concepts/dpf-types.md#standard-types)Array of frequencies where weightings shall be returned.**Pin 1**   
Requiredfrequency\_weighting[`string`](../../core-concepts/dpf-types.md#standard-types)Frequency weighting.  
  
Supported values are:  
  
\* **"A"**: A-weighting,  
\* **"B"**: B-weighting,  
\* **"C"**: C-weighting.## Outputs

OutputNameExpected type(s)Description**Pin 0**weights[`vector<double>`](../../core-concepts/dpf-types.md#standard-types)Values of the required weighting in dB, at the specified 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**: get\_frequency\_weighting

**License**: avrxp\_snd\_level1

## Changelog

- Version 0.0.0: Initial release.