Audio credits

The original mixture and all nine processed versions use the same four recordings from Freesound, via FSD50K.

• Beagle_Bark_Howl_Exterior 09.wav by n_audioman · CC BY 3.0
• Door Knock - with urgency.wav by FreqMan · CC0 1.0
• gpws.flac by kwahmah_02 · CC BY 3.0
• 20060727.kitchen.jet.wav by dobroide · CC BY 3.0

What changed

Converted to mono 16 kHz, cropped or padded, adjusted in level and mixed. Processed variants use the trained model and stated target/remainder gains. One shared playback scale is applied to the original mixture and all nine outputs. Original recordings retain their listed licenses.

Adaptation and model processing: Eduardo Cepeda Torres, 2026. This audio adaptation is offered under CC BY 3.0; the CC0 source retains its dedication. Attribution does not imply endorsement by the original creators.

About this example

A synthetic aircraft warning, a dog bark, a door knock, and running water. The aircraft warning is the source labeled as the siren class in the study. These are precomputed estimates; other sounds and artifacts can remain.

A single playback factor of 1.00000000 is shared by every file. There is no independent normalization between modes.

Audio provenance, transformations and file hashes · Study-wide results · Research report