Sounds in this folder come from Wikimedia Commons and were converted to
PCM mono 22050 Hz 16-bit for GoldSrc. Trimmed and peak-normalised.

trombone.wav  Sad Trombone            CC BY 4.0  (attribution required)
wilhelm.wav   Wilhelm Scream          CC0
laugh.wav     Cartoon Laugh           CC0
boom.wav      Explosion-LS100155      Public domain
drumroll.wav  Drum Roll Intro         CC0
applause.wav  Clapping hurray         Public domain

Source pages: https://commons.wikimedia.org/wiki/File:<Original_Name>
Added 2026-08-20.