---
license: other
multilinguality:
  - multilingual
viewer: true
configs:
  - config_name: af_za
    data_files:
      - split: test
        path: data/af_za/test-*.parquet
      - split: train
        path: data/af_za/train-*.parquet
  - config_name: am_et
    data_files:
      - split: test
        path: data/am_et/test-*.parquet
      - split: train
        path: data/am_et/train-*.parquet
  - config_name: ar_bh
    data_files:
      - split: test
        path: data/ar_bh/test-*.parquet
      - split: train
        path: data/ar_bh/train-*.parquet
  - config_name: ar_dz
    data_files:
      - split: test
        path: data/ar_dz/test-*.parquet
      - split: train
        path: data/ar_dz/train-*.parquet
  - config_name: ar_eg
    data_files:
      - split: test
        path: data/ar_eg/test-*.parquet
      - split: train
        path: data/ar_eg/train-*.parquet
  - config_name: ar_iq
    data_files:
      - split: test
        path: data/ar_iq/test-*.parquet
      - split: train
        path: data/ar_iq/train-*.parquet
  - config_name: ar_kw
    data_files:
      - split: test
        path: data/ar_kw/test-*.parquet
      - split: train
        path: data/ar_kw/train-*.parquet
  - config_name: ar_ma
    data_files:
      - split: test
        path: data/ar_ma/test-*.parquet
      - split: train
        path: data/ar_ma/train-*.parquet
  - config_name: ar_sa
    data_files:
      - split: test
        path: data/ar_sa/test-*.parquet
      - split: train
        path: data/ar_sa/train-*.parquet
  - config_name: ar_tn
    data_files:
      - split: test
        path: data/ar_tn/test-*.parquet
      - split: train
        path: data/ar_tn/train-*.parquet
  - config_name: ar_un
    data_files:
      - split: test
        path: data/ar_un/test-*.parquet
      - split: train
        path: data/ar_un/train-*.parquet
  - config_name: az_az
    data_files:
      - split: test
        path: data/az_az/test-*.parquet
      - split: train
        path: data/az_az/train-*.parquet
  - config_name: be_by
    data_files:
      - split: test
        path: data/be_by/test-*.parquet
      - split: train
        path: data/be_by/train-*.parquet
  - config_name: bn_bd
    data_files:
      - split: test
        path: data/bn_bd/test-*.parquet
      - split: train
        path: data/bn_bd/train-*.parquet
  - config_name: ckb_iq
    data_files:
      - split: test
        path: data/ckb_iq/test-*.parquet
      - split: train
        path: data/ckb_iq/train-*.parquet
  - config_name: cnr_me
    data_files:
      - split: test
        path: data/cnr_me/test-*.parquet
      - split: train
        path: data/cnr_me/train-*.parquet
  - config_name: crs_sc
    data_files:
      - split: test
        path: data/crs_sc/test-*.parquet
      - split: train
        path: data/crs_sc/train-*.parquet
  - config_name: cs_cz
    data_files:
      - split: test
        path: data/cs_cz/test-*.parquet
      - split: train
        path: data/cs_cz/train-*.parquet
  - config_name: de_at
    data_files:
      - split: test
        path: data/de_at/test-*.parquet
      - split: train
        path: data/de_at/train-*.parquet
  - config_name: dv_mv
    data_files:
      - split: test
        path: data/dv_mv/test-*.parquet
      - split: train
        path: data/dv_mv/train-*.parquet
  - config_name: el_cy
    data_files:
      - split: test
        path: data/el_cy/test-*.parquet
      - split: train
        path: data/el_cy/train-*.parquet
  - config_name: el_gr
    data_files:
      - split: test
        path: data/el_gr/test-*.parquet
      - split: train
        path: data/el_gr/train-*.parquet
  - config_name: en_au
    data_files:
      - split: test
        path: data/en_au/test-*.parquet
      - split: train
        path: data/en_au/train-*.parquet
  - config_name: en_jm
    data_files:
      - split: test
        path: data/en_jm/test-*.parquet
      - split: train
        path: data/en_jm/train-*.parquet
  - config_name: en_ke
    data_files:
      - split: test
        path: data/en_ke/test-*.parquet
      - split: train
        path: data/en_ke/train-*.parquet
  - config_name: en_nz
    data_files:
      - split: test
        path: data/en_nz/test-*.parquet
      - split: train
        path: data/en_nz/train-*.parquet
  - config_name: en_sl
    data_files:
      - split: test
        path: data/en_sl/test-*.parquet
      - split: train
        path: data/en_sl/train-*.parquet
  - config_name: en_zm
    data_files:
      - split: test
        path: data/en_zm/test-*.parquet
      - split: train
        path: data/en_zm/train-*.parquet
  - config_name: eo
    data_files:
      - split: test
        path: data/eo/test-*.parquet
      - split: train
        path: data/eo/train-*.parquet
  - config_name: es_ar
    data_files:
      - split: test
        path: data/es_ar/test-*.parquet
      - split: train
        path: data/es_ar/train-*.parquet
  - config_name: es_cl
    data_files:
      - split: test
        path: data/es_cl/test-*.parquet
      - split: train
        path: data/es_cl/train-*.parquet
  - config_name: es_co
    data_files:
      - split: test
        path: data/es_co/test-*.parquet
      - split: train
        path: data/es_co/train-*.parquet
  - config_name: es_es
    data_files:
      - split: train
        path: data/es_es/train-*.parquet
  - config_name: es_mx
    data_files:
      - split: test
        path: data/es_mx/test-*.parquet
      - split: train
        path: data/es_mx/train-*.parquet
  - config_name: es_pe
    data_files:
      - split: test
        path: data/es_pe/test-*.parquet
      - split: train
        path: data/es_pe/train-*.parquet
  - config_name: es_pr
    data_files:
      - split: test
        path: data/es_pr/test-*.parquet
      - split: train
        path: data/es_pr/train-*.parquet
  - config_name: es_py
    data_files:
      - split: test
        path: data/es_py/test-*.parquet
      - split: train
        path: data/es_py/train-*.parquet
  - config_name: es_uy
    data_files:
      - split: test
        path: data/es_uy/test-*.parquet
      - split: train
        path: data/es_uy/train-*.parquet
  - config_name: nl_nl
    data_files:
      - split: test
        path: data/nl_nl/test-*.parquet
      - split: train
        path: data/nl_nl/train-*.parquet
---

# WorldSpeech

**Highly multilingual, large-scale paired speech corpus assembled from primary public archives such as national parliaments, public broadcasters, and public-domain audiobooks across 107 language-country configs, with strong non-European and low-resource coverage.**

Every segment ships with a verified *human* transcript (not ASR pseudo-labels), an ASR transcript, the CER between them, a WADA-SNR estimate, and four DNSMOS-P.835 quality scores, so you can filter, rank, or stratify training data without rerunning a single signal-quality model.

Audio is OGG Opus 24 kHz mono ~64 kbps VBR. Splits are 95/5, full provenance (`source`, `source_url`, `session_date`, `source_start_s`/`source_end_s`, `segment_id`) is preserved on every row, so you can trace any clip back to its original parliamentary record or broadcast.

## Loading

```python
from datasets import load_dataset, Audio

ds = load_dataset("AAdonis/WorldSpeech", "nl_nl", split="train")
ds = ds.cast_column("audio", Audio(sampling_rate=24000))  # decodes Opus -> {"array": np.ndarray, "sampling_rate": 24000}

row = ds[0]
wav = row["audio"]["array"]            # 1-D float numpy array, 24 kHz mono
sr  = row["audio"]["sampling_rate"]    # 24000
text   = row["human_transcript"]
snr    = row["snr"]
dnsmos = row["dnsmos_ovr"]
print(len(wav)/sr, "sec", text[:60], snr, dnsmos)

# Streaming (no full download):
ds = load_dataset("AAdonis/WorldSpeech", "nl_nl", split="train", streaming=True)
ds = ds.cast_column("audio", Audio(sampling_rate=24000))
for row in ds:
    wav = row["audio"]["array"]
    break
```

## Configs

| Config | Country | Language | Hours | Avg DNSMOS OVR |
|---|---|---|---|---|
| `af_za` | South Africa | Afrikaans | 20.2 | 2.79 |
| `am_et` | Ethiopia | Amharic | 39.6 | 3.11 |
| `ar_bh` | Bahrain | Arabic | 219.5 | 2.72 |
| `ar_dz` | Algeria | Arabic | 92.9 | 2.66 |
| `ar_eg` | Egypt | Arabic | 22.0 | 2.86 |
| `ar_iq` | Iraq | Arabic | 246.0 | 2.94 |
| `ar_kw` | Kuwait | Arabic | 175.5 | 2.82 |
| `ar_ma` | Morocco | Arabic | 78.3 | 2.68 |
| `ar_sa` | Saudi Arabia | Arabic | 6.1 | 2.01 |
| `ar_tn` | Tunisia | Arabic | 50.9 | 2.74 |
| `ar_un` | United Nations | Arabic | 11.1 | 3.03 |
| `az_az` | Azerbaijan | Azerbaijani | 305.4 | 2.76 |
| `be_by` | Belarus | Belarusian | 24.2 | 3.10 |
| `bn_bd` | Bangladesh | Bengali | 46.1 | 3.03 |
| `ckb_iq` | Iraq | Sorani Kurdish | 35.3 | 2.93 |
| `cnr_me` | Montenegro | Montenegrin | 47.9 | 2.98 |
| `crs_sc` | Seychelles | Kreol Seselwa | 1572.3 | 3.15 |
| `cs_cz` | Czech Republic | Czech | 931.6 | 2.87 |
| `de_at` | Austria | German | 1077.5 | 2.93 |
| `dv_mv` | Maldives | Dhivehi | 20.0 | 2.92 |
| `el_cy` | Cyprus | Greek | 394.5 | 2.90 |
| `el_gr` | Greece | Greek | 35.9 | 3.37 |
| `en_au` | Australia | English | 568.4 | 3.02 |
| `en_jm` | Jamaica | English | 9.6 | 2.52 |
| `en_ke` | Kenya | English | 170.0 | 2.97 |
| `en_nz` | New Zealand | English | 438.6 | 2.68 |
| `en_sl` | Sierra Leone | English | 102.4 | 2.70 |
| `en_zm` | Zambia | English | 291.6 | 2.70 |
| `eo` | (international) | Esperanto | 15.0 | 3.27 |
| `es_ar` | Argentina | Spanish | 251.7 | 2.78 |
| `es_cl` | Chile | Spanish | 774.1 | _TBD_ |
| `es_co` | Colombia | Spanish | 156.8 | 2.75 |
| `es_es` | Spain | Spanish | 510.5 | 2.52 |
| `es_mx` | Mexico | Spanish | 713.8 | 2.63 |
| `es_pe` | Peru | Spanish | 300.4 | 2.63 |
| `es_pr` | Puerto Rico | Spanish | 228.6 | 2.73 |
| `es_py` | Paraguay | Spanish | 133.2 | 3.14 |
| `es_uy` | Uruguay | Spanish | 894.4 | 2.94 |
| `fa_ir` | Iran | Persian | _TBD_ | _TBD_ |
| `fr_ca` | Canada | French | _TBD_ | _TBD_ |
| `fr_cd` | DR Congo | French | _TBD_ | _TBD_ |
| `fr_ci` | Cote d'Ivoire | French | _TBD_ | _TBD_ |
| `ga_ie` | Ireland | Irish | _TBD_ | _TBD_ |
| `grc_gr` | Greece | Ancient Greek | _TBD_ | _TBD_ |
| `ha_ng` | Nigeria | Hausa | _TBD_ | _TBD_ |
| `he_il` | Israel | Hebrew | _TBD_ | _TBD_ |
| `hi_in` | India | Hindi | _TBD_ | _TBD_ |
| `hu_hu` | Hungary | Hungarian | _TBD_ | _TBD_ |
| `hy_am` | Armenia | Armenian | _TBD_ | _TBD_ |
| `id_id` | Indonesia | Indonesian | _TBD_ | _TBD_ |
| `ig_ng` | Nigeria | Igbo | _TBD_ | _TBD_ |
| `iu_ca` | Canada | Inuktitut | _TBD_ | _TBD_ |
| `ja_jp` | Japan | Japanese | _TBD_ | _TBD_ |
| `ka_ge` | Georgia | Georgian | _TBD_ | _TBD_ |
| `kk_kz` | Kazakhstan | Kazakh | _TBD_ | _TBD_ |
| `km_kh` | Cambodia | Khmer | _TBD_ | _TBD_ |
| `ko_kr` | South Korea | Korean | _TBD_ | _TBD_ |
| `la_va` | Vatican | Latin | _TBD_ | _TBD_ |
| `lb_lu` | Luxembourg | Luxembourgish | _TBD_ | _TBD_ |
| `lo_la` | Laos | Lao | _TBD_ | _TBD_ |
| `mfe_mu` | Mauritius | Mauritian Creole | _TBD_ | _TBD_ |
| `mi_nz` | New Zealand | Maori | _TBD_ | _TBD_ |
| `ml_in` | India | Malayalam | _TBD_ | _TBD_ |
| `mn_mn` | Mongolia | Mongolian | _TBD_ | _TBD_ |
| `mr_in` | India | Marathi | _TBD_ | _TBD_ |
| `ms_my` | Malaysia | Malay | _TBD_ | _TBD_ |
| `my_mm` | Myanmar | Burmese | _TBD_ | _TBD_ |
| `ne_np` | Nepal | Nepali | _TBD_ | _TBD_ |
| `nl_be` | Belgium | Dutch | _TBD_ | _TBD_ |
| `nl_nl` | Netherlands | Dutch | 997.1 | 3.07 |
| `nr_za` | South Africa | Southern Ndebele | _TBD_ | _TBD_ |
| `nso_za` | South Africa | Northern Sotho | _TBD_ | _TBD_ |
| `om_et` | Ethiopia | Oromo | _TBD_ | _TBD_ |
| `pa_in` | India | Punjabi | _TBD_ | _TBD_ |
| `pl_pl` | Poland | Polish | _TBD_ | _TBD_ |
| `pt_br` | Brazil | Portuguese | _TBD_ | _TBD_ |
| `rm_ch` | Switzerland | Romansh | _TBD_ | _TBD_ |
| `ro_md` | Moldova | Romanian | _TBD_ | _TBD_ |
| `ro_ro` | Romania | Romanian | _TBD_ | _TBD_ |
| `ru_by` | Belarus | Russian | _TBD_ | _TBD_ |
| `ru_ru` | Russia | Russian | _TBD_ | _TBD_ |
| `rw_rw` | Rwanda | Kinyarwanda | _TBD_ | _TBD_ |
| `si_lk` | Sri Lanka | Sinhala | _TBD_ | _TBD_ |
| `sm_ws` | Samoa | Samoan | _TBD_ | _TBD_ |
| `sn_zw` | Zimbabwe | Shona | _TBD_ | _TBD_ |
| `sq_al` | Albania | Albanian | _TBD_ | _TBD_ |
| `sq_xk` | Kosovo | Albanian | _TBD_ | _TBD_ |
| `ss_za` | South Africa | Swati | _TBD_ | _TBD_ |
| `st_za` | South Africa | Sesotho | _TBD_ | _TBD_ |
| `sv_ax` | Aland Islands | Swedish | _TBD_ | _TBD_ |
| `sw_tz` | Tanzania | Swahili | _TBD_ | _TBD_ |
| `ta_lk` | Sri Lanka | Tamil | _TBD_ | _TBD_ |
| `th_th` | Thailand | Thai | _TBD_ | _TBD_ |
| `ti_et` | Ethiopia | Tigrinya | _TBD_ | _TBD_ |
| `tl_ph` | Philippines | Tagalog | _TBD_ | _TBD_ |
| `tn_bw` | Botswana | Tswana | _TBD_ | _TBD_ |
| `tn_za` | South Africa | Tswana | _TBD_ | _TBD_ |
| `tr_tr` | Turkey | Turkish | _TBD_ | _TBD_ |
| `ts_za` | South Africa | Tsonga | _TBD_ | _TBD_ |
| `ug_cn` | China | Uyghur | _TBD_ | _TBD_ |
| `uz_uz` | Uzbekistan | Uzbek | _TBD_ | _TBD_ |
| `ve_za` | South Africa | Venda | _TBD_ | _TBD_ |
| `vi_vn` | Vietnam | Vietnamese | _TBD_ | _TBD_ |
| `xh_za` | South Africa | Xhosa | _TBD_ | _TBD_ |
| `yue_hk` | Hong Kong | Cantonese | _TBD_ | _TBD_ |
| `zh_tw` | Taiwan | Chinese (Mandarin) | _TBD_ | _TBD_ |
| `zu_za` | South Africa | Zulu | _TBD_ | _TBD_ |
| **Total** | - | - | **12009.0** | **2.85** |

## Licenses

| Config | Country / Language | License |
|---|---|---|
| `af_za` | South Africa / Afrikaans | [License](#) |
| `am_et` | Ethiopia / Amharic | [License](#) |
| `ar_bh` | Bahrain / Arabic | [License](#) |
| `ar_dz` | Algeria / Arabic | [License](#) |
| `ar_eg` | Egypt / Arabic | [License](#) |
| `ar_iq` | Iraq / Arabic | [License](#) |
| `ar_kw` | Kuwait / Arabic | [License](#) |
| `ar_ma` | Morocco / Arabic | [License](#) |
| `ar_sa` | Saudi Arabia / Arabic | [License](#) |
| `ar_tn` | Tunisia / Arabic | [License](#) |
| `ar_un` | United Nations / Arabic | [License](#) |
| `az_az` | Azerbaijan / Azerbaijani | [License](#) |
| `be_by` | Belarus / Belarusian | [License](#) |
| `bn_bd` | Bangladesh / Bengali | [License](#) |
| `ckb_iq` | Iraq / Sorani Kurdish | [License](#) |
| `cnr_me` | Montenegro / Montenegrin | [License](#) |
| `crs_sc` | Seychelles / Kreol Seselwa | [License](#) |
| `cs_cz` | Czech Republic / Czech | [License](#) |
| `de_at` | Austria / German | [License](#) |
| `dv_mv` | Maldives / Dhivehi | [License](#) |
| `el_cy` | Cyprus / Greek | [License](#) |
| `el_gr` | Greece / Greek | [License](#) |
| `en_au` | Australia / English | [License](#) |
| `en_jm` | Jamaica / English | [License](#) |
| `en_ke` | Kenya / English | [License](#) |
| `en_nz` | New Zealand / English | [License](#) |
| `en_sl` | Sierra Leone / English | [License](#) |
| `en_zm` | Zambia / English | [License](#) |
| `eo` | (international) / Esperanto | [License](#) |
| `es_ar` | Argentina / Spanish | [License](#) |
| `es_cl` | Chile / Spanish | [License](#) |
| `es_co` | Colombia / Spanish | [License](#) |
| `es_es` | Spain / Spanish | [License](#) |
| `es_mx` | Mexico / Spanish | [License](#) |
| `es_pe` | Peru / Spanish | [License](#) |
| `es_pr` | Puerto Rico / Spanish | [License](#) |
| `es_py` | Paraguay / Spanish | [License](#) |
| `es_uy` | Uruguay / Spanish | [License](#) |
| `fa_ir` | Iran / Persian | [License](#) |
| `fr_ca` | Canada / French | [License](#) |
| `fr_cd` | DR Congo / French | [License](#) |
| `fr_ci` | Cote d'Ivoire / French | [License](#) |
| `ga_ie` | Ireland / Irish | [License](#) |
| `grc_gr` | Greece / Ancient Greek | [License](#) |
| `ha_ng` | Nigeria / Hausa | [License](#) |
| `he_il` | Israel / Hebrew | [License](#) |
| `hi_in` | India / Hindi | [License](#) |
| `hu_hu` | Hungary / Hungarian | [License](#) |
| `hy_am` | Armenia / Armenian | [License](#) |
| `id_id` | Indonesia / Indonesian | [License](#) |
| `ig_ng` | Nigeria / Igbo | [License](#) |
| `iu_ca` | Canada / Inuktitut | [License](#) |
| `ja_jp` | Japan / Japanese | [License](#) |
| `ka_ge` | Georgia / Georgian | [License](#) |
| `kk_kz` | Kazakhstan / Kazakh | [License](#) |
| `km_kh` | Cambodia / Khmer | [License](#) |
| `ko_kr` | South Korea / Korean | [License](#) |
| `la_va` | Vatican / Latin | [License](#) |
| `lb_lu` | Luxembourg / Luxembourgish | [License](#) |
| `lo_la` | Laos / Lao | [License](#) |
| `mfe_mu` | Mauritius / Mauritian Creole | [License](#) |
| `mi_nz` | New Zealand / Maori | [License](#) |
| `ml_in` | India / Malayalam | [License](#) |
| `mn_mn` | Mongolia / Mongolian | [License](#) |
| `mr_in` | India / Marathi | [License](#) |
| `ms_my` | Malaysia / Malay | [License](#) |
| `my_mm` | Myanmar / Burmese | [License](#) |
| `ne_np` | Nepal / Nepali | [License](#) |
| `nl_be` | Belgium / Dutch | [License](#) |
| `nl_nl` | Netherlands / Dutch | [License](#) |
| `nr_za` | South Africa / Southern Ndebele | [License](#) |
| `nso_za` | South Africa / Northern Sotho | [License](#) |
| `om_et` | Ethiopia / Oromo | [License](#) |
| `pa_in` | India / Punjabi | [License](#) |
| `pl_pl` | Poland / Polish | [License](#) |
| `pt_br` | Brazil / Portuguese | [License](#) |
| `rm_ch` | Switzerland / Romansh | [License](#) |
| `ro_md` | Moldova / Romanian | [License](#) |
| `ro_ro` | Romania / Romanian | [License](#) |
| `ru_by` | Belarus / Russian | [License](#) |
| `ru_ru` | Russia / Russian | [License](#) |
| `rw_rw` | Rwanda / Kinyarwanda | [License](#) |
| `si_lk` | Sri Lanka / Sinhala | [License](#) |
| `sm_ws` | Samoa / Samoan | [License](#) |
| `sn_zw` | Zimbabwe / Shona | [License](#) |
| `sq_al` | Albania / Albanian | [License](#) |
| `sq_xk` | Kosovo / Albanian | [License](#) |
| `ss_za` | South Africa / Swati | [License](#) |
| `st_za` | South Africa / Sesotho | [License](#) |
| `sv_ax` | Aland Islands / Swedish | [License](#) |
| `sw_tz` | Tanzania / Swahili | [License](#) |
| `ta_lk` | Sri Lanka / Tamil | [License](#) |
| `th_th` | Thailand / Thai | [License](#) |
| `ti_et` | Ethiopia / Tigrinya | [License](#) |
| `tl_ph` | Philippines / Tagalog | [License](#) |
| `tn_bw` | Botswana / Tswana | [License](#) |
| `tn_za` | South Africa / Tswana | [License](#) |
| `tr_tr` | Turkey / Turkish | [License](#) |
| `ts_za` | South Africa / Tsonga | [License](#) |
| `ug_cn` | China / Uyghur | [License](#) |
| `uz_uz` | Uzbekistan / Uzbek | [License](#) |
| `ve_za` | South Africa / Venda | [License](#) |
| `vi_vn` | Vietnam / Vietnamese | [License](#) |
| `xh_za` | South Africa / Xhosa | [License](#) |
| `yue_hk` | Hong Kong / Cantonese | [License](#) |
| `zh_tw` | Taiwan / Chinese (Mandarin) | [License](#) |
| `zu_za` | South Africa / Zulu | [License](#) |