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 # sound:filter - load FRF from txt file

 Last update: 31.07.2026 

**Version: 0.0.0**

## Description

Loads a Frequency Response Function (FRF) from a text file. The supported files are text files with the header AnsysSound\_FRF X, as in Ansys Sound SAS.

## Inputs

InputNameExpected type(s)Description**Pin 0**   
Requiredfile\_path[`string`](../../core-concepts/dpf-types.md#standard-types)Path to the text file.## Outputs

OutputNameExpected type(s)Description**Pin 0**frequency\_response\_function[`field`](../../core-concepts/dpf-types.md#field)The frequency response function (FRF), which contains frequencies in Hz and associated gains in dB, as a field.## 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**: load\_FRF\_from\_txt

**License**: avrxp\_snd\_level1

## Changelog

- Version 0.0.0: Initial release.