README.md

---
dataset_info:
- config_name: bosnia-herzegovina
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: validation
    num_bytes: 919337453.444
    num_examples: 1909
  - name: train
    num_bytes: 77993681122.905
    num_examples: 162735
  - name: test
    num_bytes: 943174268.733
    num_examples: 1961
  download_size: 79113448032
  dataset_size: 79856192845.082
- config_name: bulgaria
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 248065429445.564
    num_examples: 513483
  - name: validation
    num_bytes: 3510710800.976
    num_examples: 7294
  - name: test
    num_bytes: 3344762135.408
    num_examples: 6892
  download_size: 252824889652
  dataset_size: 254920902381.948
- config_name: croatia
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 316453728263.914
    num_examples: 664881
  - name: test
    num_bytes: 2702349904.91
    num_examples: 5635
  - name: validation
    num_bytes: 2699814032.448
    num_examples: 5624
  download_size: 322990100208
  dataset_size: 321855892201.272
- config_name: denmark
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 185531841060.95
    num_examples: 398773
  - name: validation
    num_bytes: 2202312175.554
    num_examples: 4646
  - name: test
    num_bytes: 1879996365.696
    num_examples: 3981
  download_size: 190728692038
  dataset_size: 189614149602.2
- config_name: estonia
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 101842775306.9
    num_examples: 208412
  - name: test
    num_bytes: 1714742404.466
    num_examples: 3554
  - name: validation
    num_bytes: 1528909434.7
    num_examples: 3175
  download_size: 103906641961
  dataset_size: 105086427146.066
- config_name: finland
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 32594336911.892
    num_examples: 68639
  download_size: 32855230508
  dataset_size: 32594336911.892
- config_name: france
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 9226444028.936
    num_examples: 19296
  - name: test
    num_bytes: 352151108
    num_examples: 744
  download_size: 9491754427
  dataset_size: 9578595136.936
- config_name: germany
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 241755081139.9
    num_examples: 502515
  - name: test
    num_bytes: 2355739115.28
    num_examples: 4872
  - name: validation
    num_bytes: 2981301054.543
    num_examples: 6193
  download_size: 494097337342
  dataset_size: 247092121309.723
- config_name: greece
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 263056171312.21
    num_examples: 562010
  - name: validation
    num_bytes: 4448185444.424
    num_examples: 9262
  - name: test
    num_bytes: 3218188587.73
    num_examples: 6730
  download_size: 275818910894
  dataset_size: 270722545344.364
- config_name: iceland
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 71472785790.548
    num_examples: 149533
  - name: validation
    num_bytes: 1310102178.86
    num_examples: 2732
  - name: test
    num_bytes: 1507775016.649
    num_examples: 3159
  download_size: 77288074579
  dataset_size: 74290662986.057
- config_name: italy
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 313435161177.292
    num_examples: 658661
  - name: validation
    num_bytes: 3574721188.877
    num_examples: 7429
  download_size: 317422730589
  dataset_size: 317009882366.169
- config_name: latvia
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 137776566199.313
    num_examples: 285083
  - name: validation
    num_bytes: 1509002378.768
    num_examples: 3188
  - name: test
    num_bytes: 1593198912.841
    num_examples: 3343
  download_size: 276643104304
  dataset_size: 140878767490.922
- config_name: lithuania
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 301683769737.85
    num_examples: 631550
  - name: validation
    num_bytes: 3084006164.348
    num_examples: 6434
  - name: test
    num_bytes: 3502221089.863
    num_examples: 7319
  download_size: 305733976991
  dataset_size: 308269996992.061
- config_name: malta
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 69838452620.337
    num_examples: 147337
  - name: validation
    num_bytes: 588717209.4
    num_examples: 1240
  - name: test
    num_bytes: 1065731467.56
    num_examples: 2260
  download_size: 70377616780
  dataset_size: 71492901297.297
- config_name: norway
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 440250112431.455
    num_examples: 906667
  - name: validation
    num_bytes: 4856964807.244
    num_examples: 10038
  - name: test
    num_bytes: 4861683338.004
    num_examples: 10042
  download_size: 441901533208
  dataset_size: 449968760576.70306
- config_name: portugal
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 368098713713.143
    num_examples: 780469
  - name: validation
    num_bytes: 3744583303.471
    num_examples: 7951
  - name: test
    num_bytes: 3548102274.206
    num_examples: 7501
  download_size: 379580153099
  dataset_size: 375391399290.82
- config_name: serbia
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 207935148745.124
    num_examples: 432659
  - name: validation
    num_bytes: 2366199111.852
    num_examples: 4853
  - name: test
    num_bytes: 2370938230.09
    num_examples: 4961
  download_size: 213167192459
  dataset_size: 212672286087.06598
- config_name: slovakia
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: validation
    num_bytes: 3176657949.876
    num_examples: 6607
  - name: test
    num_bytes: 2469280736.248
    num_examples: 5104
  download_size: 5573778559
  dataset_size: 5645938686.124001
- config_name: slovenia
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 129438945198.308
    num_examples: 270428
  - name: validation
    num_bytes: 1788987694.534
    num_examples: 3721
  - name: test
    num_bytes: 1710926793.385
    num_examples: 3585
  download_size: 132999734304
  dataset_size: 132938859686.22699
- config_name: sweden
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 260176383382.708
    num_examples: 543459
  - name: validation
    num_bytes: 3015372605.905
    num_examples: 6305
  - name: test
    num_bytes: 2966220472.494
    num_examples: 6138
  download_size: 271304713141
  dataset_size: 266157976461.107
- config_name: uk
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 19587393098.801
    num_examples: 40791
  download_size: 19497150061
  dataset_size: 19587393098.801
- config_name: ukraine
  features:
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: key
    dtype: string
  - name: country
    dtype: string
  - name: language
    dtype: string
  - name: video_id
    dtype: string
  - name: transcript_id
    dtype: string
  - name: start_seconds
    dtype: float32
  - name: end_seconds
    dtype: float32
  - name: duration_seconds
    dtype: float32
  - name: asr_transcript
    dtype: string
  - name: human_transcript
    dtype: string
  - name: cer
    dtype: float32
  - name: wer
    dtype: float32
  - name: original_transcript_start_idx
    dtype: int32
  - name: original_transcript_end_idx
    dtype: int32
  splits:
  - name: train
    num_bytes: 269118203613.392
    num_examples: 277032
  - name: test
    num_bytes: 3148902172.179
    num_examples: 3239
  - name: validation
    num_bytes: 2977516808.2
    num_examples: 3064
  download_size: 248392546680
  dataset_size: 275244622593.771
configs:
- config_name: bosnia-herzegovina
  data_files:
  - split: validation
    path: bosnia-herzegovina/validation-*
  - split: train
    path: bosnia-herzegovina/train-*
  - split: test
    path: bosnia-herzegovina/test-*
- config_name: bulgaria
  data_files:
  - split: train
    path: bulgaria/train-*
  - split: validation
    path: bulgaria/validation-*
  - split: test
    path: bulgaria/test-*
- config_name: croatia
  data_files:
  - split: test
    path: croatia/test-*
  - split: validation
    path: croatia/validation-*
  - split: train
    path: croatia/train-*
- config_name: denmark
  data_files:
  - split: train
    path: denmark/train-*
  - split: validation
    path: denmark/validation-*
  - split: test
    path: denmark/test-*
- config_name: estonia
  data_files:
  - split: train
    path: estonia/train-*
  - split: test
    path: estonia/test-*
  - split: validation
    path: estonia/validation-*
- config_name: finland
  data_files:
  - split: train
    path: finland/train-*
- config_name: france
  data_files:
  - split: train
    path: france/train-*
  - split: test
    path: france/test-*
- config_name: germany
  data_files:
  - split: train
    path: germany/train-*
  - split: test
    path: germany/test-*
  - split: validation
    path: germany/validation-*
- config_name: greece
  data_files:
  - split: train
    path: greece/train-*
  - split: validation
    path: greece/validation-*
  - split: test
    path: greece/test-*
- config_name: iceland
  data_files:
  - split: validation
    path: iceland/validation-*
  - split: test
    path: iceland/test-*
  - split: train
    path: iceland/train-*
- config_name: italy
  data_files:
  - split: train
    path: italy/train-*
  - split: validation
    path: italy/validation-*
- config_name: latvia
  data_files:
  - split: train
    path: latvia/train-*
  - split: validation
    path: latvia/validation-*
  - split: test
    path: latvia/test-*
- config_name: lithuania
  data_files:
  - split: train
    path: lithuania/train-*
  - split: validation
    path: lithuania/validation-*
  - split: test
    path: lithuania/test-*
- config_name: malta
  data_files:
  - split: train
    path: malta/train-*
  - split: validation
    path: malta/validation-*
  - split: test
    path: malta/test-*
- config_name: norway
  data_files:
  - split: train
    path: norway/train-*
  - split: validation
    path: norway/validation-*
  - split: test
    path: norway/test-*
- config_name: portugal
  data_files:
  - split: train
    path: portugal/train-*
  - split: validation
    path: portugal/validation-*
  - split: test
    path: portugal/test-*
- config_name: serbia
  data_files:
  - split: train
    path: serbia/train-*
  - split: validation
    path: serbia/validation-*
  - split: test
    path: serbia/test-*
- config_name: slovakia
  data_files:
  - split: validation
    path: slovakia/validation-*
  - split: test
    path: slovakia/test-*
- config_name: slovenia
  data_files:
  - split: train
    path: slovenia/train-*
  - split: validation
    path: slovenia/validation-*
  - split: test
    path: slovenia/test-*
- config_name: sweden
  data_files:
  - split: validation
    path: sweden/validation-*
  - split: test
    path: sweden/test-*
  - split: train
    path: sweden/train-*
- config_name: uk
  data_files:
  - split: train
    path: uk/train-*
- config_name: ukraine
  data_files:
  - split: train
    path: ukraine/train-*
  - split: test
    path: ukraine/test-*
  - split: validation
    path: ukraine/validation-*
task_categories:
- automatic-speech-recognition
- text-to-speech
language:
- de
- en
- mt
- sl
- sk
- da
- sv
- 'no'
- bs
- fr
- hr
- pt
- it
- lt
- el
- bg
- lv
- uk
- fi
- et
- is
- sr
license: other
---
# EuroSpeech Dataset

## Dataset Description

EuroSpeech is a large-scale multilingual speech corpus containing high-quality aligned parliamentary speech across 22 European languages. The dataset was constructed by processing parliamentary proceedings using a robust alignment pipeline that handles diverse audio formats and non-verbatim transcripts.

### Dataset Summary

- **Languages**: 22 European languages (see detailed breakdown below)
- **Total aligned hours**: ~78,100 hours of initially aligned speech-text data
- **Quality-filtered subsets**:
  - CER < 30%: approximately 61,000 hours
  - CER < 20%: approximately 50,500 hours (this is the primary subset provided directly through the Hugging Face Datasets interface for all languages)
  - CER < 10%: approximately 32,200 hours
- **Domain**: Parliamentary proceedings (formal speaking style)
- **Audio segment length**: Typically 3-20 seconds
- **Format**: Audio segments with paired transcriptions

### Languages

EuroSpeech provides substantial data for previously under-resourced languages:
- 19 languages exceed 1,000 hours of data (CER < 20%)
- 22 languages exceed 500 hours of data (CER < 20%)

| Language         | Code | Total Aligned (h) | CER < 30\% (h) | CER < 20\% (h) | CER < 10\% (h) |
|------------------|------|-------------------|----------------|----------------|----------------|
| Croatia          | hr   | 7484.9            | 5899.7         | 5615.8         | 4592.0         |
| Denmark          | da   | 7014.2            | 6435.0         | 5559.8         | 3443.7         |
| Norway           | no   | 5326.2            | 4578.8         | 3866.7         | 2252.2         |
| Portugal         | pt   | 5096.3            | 4036.7         | 3293.5         | 2105.9         |
| Italy            | it   | 4812.8            | 3539.6         | 2813.7         | 1767.3         |
| Lithuania        | lt   | 5537.9            | 3971.0         | 2681.2         | 956.6          |
| United Kingdom   | en   | 5212.2            | 3790.7         | 2609.3         | 1175.0         |
| Slovakia         | sk   | 2863.4            | 2722.4         | 2553.6         | 2070.8         |
| Greece           | el   | 3096.7            | 2717.6         | 2395.4         | 1620.9         |
| Sweden           | sv   | 3819.4            | 2862.6         | 2312.8         | 1360.1         |
| France           | fr   | 5476.8            | 2972.1         | 2249.8         | 1347.6         |
| Bulgaria         | bg   | 3419.6            | 2570.4         | 2200.1         | 1472.8         |
| Germany          | de   | 2472.2            | 2354.2         | 2184.4         | 1698.4         |
| Serbia           | sr   | 2263.1            | 1985.1         | 1855.7         | 1374.1         |
| Finland          | fi   | 2130.6            | 1991.4         | 1848.2         | 1442.2         |
| Latvia           | lv   | 2047.4            | 1627.9         | 1218.8         | 499.9          |
| Ukraine          | uk   | 1287.8            | 1238.3         | 1191.1         | 1029.8         |
| Slovenia         | sl   | 1338.2            | 1241.7         | 1156.4         | 900.5          |
| Estonia          | et   | 1701.1            | 1430.9         | 1014.9         | 382.5          |
| Bosnia \& Herz.  | bs   | 860.2             | 781.9          | 691.3          | 447.8          |
| Iceland          | is   | 1586.1            | 974.1          | 647.4          | 171.4          |
| Malta            | mt   | 3281.6            | 1284.3         | 613.0          | 143.9          |
| **Total**        |      | **78128.6**       | **61006.4**    | **50572.9**    | **32255.5**    |

## Dataset Structure

### Data Instances

Each instance in the dataset consists of:
- Audio segment (3-20 seconds)
- Corresponding transcript text
- Metadata including language, source session, alignment quality metrics

### Data Splits

The dataset provides predefined train, development, and test splits for each language. To ensure data integrity and prevent leakage between sets, these splits are constructed by assigning entire parliamentary sessions (i.e., all segments derived from a single original long audio recording) exclusively to one of the train, development, or test sets. The exact proportions follow common practices (e.g., 80/10/10).

## Dataset Creation

### Source Data

The data was collected from parliamentary proceedings across 22 European nations. Parliamentary sessions offer high-quality speech in a formal register, typically featuring clear speech with good audio quality and professional transcripts.

### Data Collection and Processing

The dataset was constructed using a multi-stage pipeline:

1. **Data Sourcing and Metadata Collection**: Manual and scripted gathering of media/transcript links from parliamentary websites.

2. **Download Pipeline**: Automated retrieval of audio, video, and transcript files using specialized handlers for diverse source formats.

3. **Alignment Pipeline**: 
   - Segmentation of long recordings into 3-20 second utterances using voice activity detection (VAD)
   - Transcription of segments using an ASR model to produce pseudo-labels
   - Alignment of segments to transcripts using a novel two-stage dynamic algorithm
   - Selection of best-aligned transcript formats and quality filtering

4. **Filtering**: CER-based filtering to create quality tiers (CER < 30%, < 20%, < 10%)

### Alignment Algorithm

The core of the alignment process is a novel two-stage dynamic algorithm specifically engineered for extreme robustness when matching ASR pseudo-labels to noisy, non-verbatim parliamentary transcripts:

1. **Coarse stage**: Uses a sliding window to rapidly scan the transcript, efficiently bypassing large irrelevant sections to identify a set of top-k candidate text spans via Character Error Rate (CER).

2. **Fine-tuning stage**: Performs a local search around promising candidates, optimizing start position and window size for the best CER.

A fallback mechanism restarts the search if no initial match meets a predefined quality threshold.

## Dataset Use

### Intended Uses

The EuroSpeech dataset is intended for:
- Training and evaluating automatic speech recognition (ASR) systems
- Training and evaluating text-to-speech (TTS) systems
- Multilingual speech research
- Low-resource language speech technology development
- Cross-lingual transfer learning in speech models

### Citation Information

If you use this dataset, please cite:
```
[Citation details to be added upon publication]
```

## Considerations

### Data Quality

The dataset provides multiple quality tiers based on Character Error Rate (CER):
- CER < 30%: More data, but potentially lower quality alignments
- CER < 20%: Balanced quality-quantity trade-off (recommended for most applications)
- CER < 10%: Highest quality alignments, but reduced quantity

### Licensing Information

The licensing terms vary by country as each parliament has its own policies. The table below provides relevant sources for each parliament in our dataset.
 
Please note that we do not guarantee the accuracy of this information and take no responsibility for any use that conflicts with applicable licenses or laws. Users are responsible for ensuring compliance with relevant terms.

#### Copyright and Licensing Information for each Parliament

| Country | Source |
|---------|--------|
| Croatia | [Legal Notice](https://www.sabor.hr/index.php/en/legal-notice) |
| Denmark | [Legal Notice](https://www.ft.dk/da/aktuelt/tv-fra-folketinget/deling-og-rettigheder#A5FB53FDE08B4CFBA457A63E7B364584) |
| Norway | [NLOD License](https://data.norge.no/nlod/en/2.0) |
| Portugal | [Portuguese Copyright Code](https://www.pgdlisboa.pt/leis/lei_mostra_articulado.php?artigo_id=484A0075&nid=484&tabela=leis&pagina=1&ficha=1&so_miolo=&nversao=#artigo) Article 75 |
| Italy | [Italian Parliament Website](https://www.senato.it/) references [CC By 4.0 License](https://creativecommons.org/licenses/by/4.0/legalcode.it) |
| Lithuania | [Republic of Lithuania Law on Copyright and Related Rights](https://www.wipo.int/edocs/lexdocs/laws/en/lt/lt081en.pdf) Article 22 |
| United Kingdom | [Terms and Conditions](https://www.parliament.uk/site-information/copyright-parliament/pru-licence-agreements/downloading--sharing-terms--conditions/) for audio, [Open Government Licence](https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/) for transcripts |
| Slovakia | [Slovak Copyright Act](https://wipolex-res.wipo.int/edocs/lexdocs/laws/en/sk/sk096en.pdf) Chapter One Section 5e) |
| Greece | [Greek Copyright Law](https://eratospe.org/2121_1993_en..pdf) Article 2(5) and Article 25(1)(b) |
| Sweden | [Law (2022:818)](https://www.riksdagen.se/sv/dokument-och-lagar/dokument/svensk-forfattningssamling/lag-2022818-om-den-offentliga-sektorns_sfs-2022-818/#K2) |
| France | [License Ouverte](https://www.etalab.gouv.fr/licence-ouverte-open-licence/) |
| Bulgaria | [Copyright Policy](https://www.president.bg/static104/Copyright-and-Legal-Policy/?lang=en&skipMobile=1) references [CC BY 2.5 BG](https://creativecommons.org/licenses/by/2.5/bg/) |
| Germany | [Terms of Use](https://www.bundestag.de/resource/blob/296018/45ce89d3a71fea6b068511a93da129bb/nutzungsbedingungen_en.pdf) |
| Serbia | [Serbian Law on Copyright and Related Rights](https://wipolex-res.wipo.int/edocs/lexdocs/laws/en/rs/rs061en.html) Article 6(2) |
| Finland | [Copyright Act](https://wipolex-res.wipo.int/edocs/lexdocs/laws/en/fi/fi001en.pdf) Article 9, 22, and 25 |
| Latvia | [Latvian Copyright Law](https://likumi.lv/ta/en/en/id/5138) Section 21 |
| Ukraine | [Law of Ukraine on Copyright and Related Rights](https://wipolex-resources-eu-central-1-358922420655.s3.amazonaws.com/edocs/lexdocs/laws/en/ua/ua210en_1.pdf) Article 8(1)(3) |
| Slovenia | [Copyright and Related Rights Act](https://wipolex-res.wipo.int/edocs/lexdocs/laws/en/si/si082en.html) Article 46-51 |
| Estonia | [Copyright Act](https://www.riigiteataja.ee/en/eli/525112013002/consolide), [Estonian Youtube](https://www.youtube.com/riigikogu) references [CC BY SA](https://creativecommons.org/licenses/by-sa/4.0/) |
| Bosnia & Herzegovina | [Copyright Law](https://original.co.ba/file/bih-copyright-law/36) Article 44 and 47 |
| Iceland | [Copyright Act](https://www.wipo.int/wipolex/en/text/128153) Article 22 |
| Malta | [Re-Use of Public Sector Information Act](https://legislation.mt/eli/cap/546/20250311/eng) Chapter 546 |

### Limitations

- The dataset primarily represents formal parliamentary speech and may not generalize well to casual, spontaneous, or noisy speech environments.
- The dataset reflects the demographics and speaking styles of European parliamentarians, which may not be representative of the general population.
- Some languages have significantly more data than others, which could lead to performance disparities in multilingual models.

## Additional Information

### Dataset Curators

- Samuel Pfisterer ([@SamuelPfisterer1](https://huggingface.co/SamuelPfisterer1))
- Florian Grötschla ([@FloGr](https://huggingface.co/FloGr))
- Luca Lanzendörfer ([@lucala](https://huggingface.co/lucala))
- Florian Yan ([@floyan](https://huggingface.co/floyan))
- Roger Wattenhofer

### Maintenance Status

[Information about maintenance and update plans]

### Links

- [EuroSpeech on Hugging Face Datasets](https://huggingface.co/datasets/disco-eth/EuroSpeech)
- [EuroSpeech GitHub Repository](https://github.com/SamuelPfisterer/EuroSpeech)