2026-07-12: Fixed crash_clips source for the Car Crash class — 399/400 rows were
empty-audio placeholders (44-byte header-only WAVs, likely from an upstream clip-extraction
bug). Re-built from the original source, Titung/car-crash-audio-clips, decoding and
re-embedding real audio. Car Crash usable training examples increased from 258 to 657
(train split). Previous version tagged pre-crash-clips-fix for reference.
crash_manual (111/194 still empty) is a known separate… See the full description on the dataset page:
https://huggingface.co/datasets/Titung/urban-surveillance-audio-raw.
