## On this page

  

 

 # sound:load sound power level ISO 3744 project

 Last update: 31.07.2026 

**Version: 0.0.0**

## Description

Load a sound power level project file (\*.spw), created with Sound SAS.

## Inputs

InputNameExpected type(s)Description**Pin 0**   
Requiredproject\_name[`string`](../../core-concepts/dpf-types.md#standard-types)Path to the sound power level project file.## Outputs

OutputNameExpected type(s)Description**Pin 0**surface\_shape[`string`](../../core-concepts/dpf-types.md#standard-types)Shape of the measurement surface ('Hemisphere', 'Half-hemisphere')'.**Pin 1**surface\_radius[`double`](../../core-concepts/dpf-types.md#standard-types)Radius in meters of the hemisphere or half-hemisphere measurement surface.**Pin 2**K1[`double`](../../core-concepts/dpf-types.md#standard-types)Background noise correction in dB (section 8.2.3 of ISO 3744).**Pin 3**K2[`double`](../../core-concepts/dpf-types.md#standard-types)Environmental correction K2 in dB (Annex A of ISO 3744).**Pin 4**C1[`double`](../../core-concepts/dpf-types.md#standard-types)Meteorological reference quantity correction C1 in dB (Annex G of ISO 3744).**Pin 5**C2[`double`](../../core-concepts/dpf-types.md#standard-types)Meteorological radiation impedance correction C2 in dB (Annex G of ISO 3744).**Pin 6**microphone\_signals[`fields_container`](../../core-concepts/dpf-types.md#fields-container)Signals recorded at various microphone positions on the measurement surface: each signal is stored as a field of microphone\_signals.## 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\_project\_sound\_power\_level\_iso3744

**License**: avrxp\_snd\_level1

## Changelog

- Version 0.0.0: Initial release.