Real thunder (Gitea #4): six CC0 recordings, close cracks and distant rolls, in place of the synthesised rumble; a storm's flash is followed by a roll seconds later or a crack sooner, quieter indoors, and a strike on a tree cracks from the tree

assets/audio/CREDITS.md

@@ -39,6 +39,21 @@ Breviceps (https://freesound.org/people/Breviceps/sounds/465697/, License:
 Creative Commons 0; the preview is in `tools/audio/sources/`), cut at 0.12 s
 and 2.65 s (leaving out the short sound between them), then levelled. Thank you.
 
+## Thunder (CC0)
+`sfx/thunder/` is cut from six Freesound recordings, all License: Creative
+Commons 0 (the previews are in `tools/audio/sources/thunder_*`), each round
+its loudest strike, faded out and levelled by
+`tools/audio/make_audio.py thunder`. Close cracks: "Thunder 08" by Emulius
+(https://freesound.org/people/Emulius/sounds/744723/), "thunder11" by
+saha213131 (https://freesound.org/people/saha213131/sounds/696550/) and
+"Thunder strike" by AyaDrevis
+(https://freesound.org/people/AyaDrevis/sounds/652690/). Distant rolls:
+"Short_Thunder_Mid" by SholeColtis
+(https://freesound.org/people/SholeColtis/sounds/683421/), "thunder7" by
+nednednerb (https://freesound.org/people/nednednerb/sounds/38250/) and
+"Thunder Clap OWB KY 441x16.wav" by Dave Welsh
+(https://freesound.org/people/Dave%20Welsh/sounds/194364/). Thank you.
+
 ## Old Tam's voice
 `voice/` is spoken by **Kokoro** (Kokoro-82M by hexgrad, Apache-2.0,
 https://huggingface.co/hexgrad/Kokoro-82M) with its British "George" voice,