Heartbeat — PASCAL Classifying Heart Sounds Challenge 2011 (CHSC2011)

Heart sound recordings collected for the PASCAL Classifying Heart Sounds Challenge 2011, organized by Peter Bentley (UCL), Glenn Nordehn, Miguel Coimbra and Shie Mannor.

Source: http://peterjbentley.com/heartchallenge/index.html

Contents

Dataset A — 176 files (WAV), classes: normal / murmur / extra heart sound / artifact

File	Size	Files	Description
Atraining_normal.zip	~14 MB	31	Normal, healthy heart sounds ("lub dub" pattern)
Atraining_murmur.zip	~17.3 MB	34	Heart murmurs (whooshing/turbulent noise between lub–dub or dub–lub)
Atraining_extrahs.zip	~6.9 MB	19	Extra heart sounds ("lub-lub dub" / "lub dub-dub")
Atraining_artifact.zip	~22.5 MB	40	Artifacts: feedback, speech, music, noise — no discernible heart sounds
Aunlabelledtest.zip	~24.6 MB	52	Unlabelled test set
Atraining_normal_seg.csv	—	—	Segmentation data: locations of S1 and S2 sounds in Atraining_normal (updated 23 March 2012)

Dataset B — 656 files (WAV), classes: normal / murmur / extrasystole (+ noisy variants)

File	Size	Files	Description
Btraining_normal.zip	~13.8 MB	320	Normal heart sounds; includes Btraining_noisynormal/ subdirectory (noisy normal)
Btraining_murmur.zip	~5.3 MB	95	Heart murmurs; includes Btraining_noisymurmur/ subdirectory (noisy murmur)
Btraining_extrasystole.zip	~1.9 MB	46	Extrasystole: occasional out-of-rhythm extra/skipped beats
Bunlabelledtest.zip	~9.2 MB	195	Unlabelled test set
Btraining_normal_seg.csv	—	—	Segmentation data: locations of S1 and S2 sounds in Btraining_normal

Evaluation

• Evaluation.zip — evaluation scripts plus full details of the metrics and test procedure for measuring method effectiveness.

Recordings are 1–30 seconds long. Most heart-sound information is in low frequencies; the challenge authors recommend a 195 Hz low-pass filter as common preprocessing.

The same data is also available from the source page in AIF format; only the WAV versions are mirrored here.

The challenges

• Challenge 1: segment the audio files in Atraining_normal.zip and Btraining_normal.zip using the provided training segmentations.
• Challenge 2: correctly label the sounds in Aunlabelledtest.zip and Bunlabelledtest.zip.

Citation

If you use this data, please cite:

@misc{pascal-chsc-2011,
  author = "Bentley, P. and Nordehn, G. and Coimbra, M. and Mannor, S.",
  title = "The {PASCAL} {C}lassifying {H}eart {S}ounds {C}hallenge 2011 {(CHSC2011)} {R}esults",
  howpublished = "http://www.peterjbentley.com/heartchallenge/index.html"
}

License / provenance

Files are mirrored from the public challenge page above. Please respect the original terms of the challenge and cite the work as requested.