sound:compute loudness ISO 532-1 (one-third-octave input)
Last update: 31.07.2026Version: 0.0.0
Description
Compute loudness according to the ISO532-1 standard for stationary sounds, using one-third-octave-band levels as input.
Inputs
| Input | Name | Expected type(s) | Description |
|---|---|---|---|
| Pin 0 Required |
input_levels | field |
Input one-third-octave-band levels in dB SPL on which to compute loudness. Exactly 28 band levels must be provided. Considered one-third-octave bands have the following central frequencies: |
| Pin 1 | field_type | string |
Field type associated with the recording conditions. Supported values: * Free * Diffuse Default: Free |
Outputs
| Output | Name | Expected type(s) | Description |
|---|---|---|---|
| Pin 0 | output_loudness_sone | double |
Loudness in sone. |
| Pin 1 | output_loudness_phon | double |
Loudness level in phon. |
| Pin 2 | output_specific_loudness | field |
Specific loudness in sone/Bark, that is, the loudness values over Bark band indexes. |
Configurations
| Name | Expected type(s) | Default value | Description |
|---|---|---|---|
| mutex | bool |
false | If 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_loudness_iso532_1_frequency_input
License: avrxp_snd_level1
Changelog
- Version 0.0.0: Initial release.
