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voicedata/pidginData

Naija-ASR-Corpus v2.0 (NAC-v2.0) A Foundational Automatic Speech Recognition Corpus for Nigerian Pidgin (Naija, PCM) 📌 Dataset Summary Naija-ASR-Corpus (NAC-v2.0) is a speech dataset derived from the Universal Dependencies Naija Spoken Corpus (UD_Naija-NSC). The NAC Team processed the original long-form recordings by: Segmenting the audio into sentence-level clips. Aligning each clip to its transcript (text_ortho) from the CoNLL-U source. Tagging each sample… See the full description on the dataset page: https://huggingface.co/datasets/voicedata/pidginData.

sourceHugging Facecc-by-sa-4.0updated 23d agoView on Hugging Face

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Dataset Card

Naija-ASR-Corpus v2.0 (NAC-v2.0)

A Foundational Automatic Speech Recognition Corpus for Nigerian Pidgin (Naija, PCM)

📌 Dataset Summary

Naija-ASR-Corpus (NAC-v2.0) is a speech dataset derived from the Universal Dependencies Naija Spoken Corpus (UD_Naija-NSC).

The NAC Team processed the original long-form recordings by:

1.Segmenting the audio into sentence-level clips.
2.Aligning each clip to its transcript (text_ortho) from the CoNLL-U source.
3.Tagging each sample with a unique id and the original speaker code.

🧩 Schema

Column	Type	Description
`id`	string	Unique identifier for this sample (UUID4)
`speaker`	string	Speaker code from the source corpus (`speaker_id` in UD_Naija-NSC)
`transcription`	string	ASR transcript text
`audio`	audio	The audio clip, 16kHz mono
`clip_start_ms`	int64	Clip start offset (ms) in the original long-form recording
`clip_end_ms`	int64	Clip end offset (ms) in the original long-form recording
`source_sent_id`	string	Sentence id from the UD_Naija-NSC source
`source_url`	string	URL of the original long-form recording

Rows: 5883

🛠️ Data Source & Attribution

This dataset is derived from the Universal Dependencies Naija Spoken Corpus (UD_Naija-NSC). The original continuous recordings were split into sentence-level clips and matched with their transcripts to build ASR-ready audio/text pairs.

This dataset contains content derived from UD_Naija-NSC (Universal Dependencies Naija Spoken Corpus), licensed under CC-BY-SA 4.0. - Original Authors: UD_Naija-NSC contributors. - Original License: https://creativecommons.org/licenses/by-sa/4.0/

📜 Licensing

Since this dataset is a derivative work of UD_Naija-NSC (CC-BY-SA 4.0), it is released under the Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license.

You are free to:

—Share — copy and redistribute the material in any medium or format.
—Adapt — remix, transform, and build upon the material for any purpose, even commercially.

Under the following terms:

—Attribution — give appropriate credit to UD_Naija-NSC and the NAC Team.
—ShareAlike — distribute your contributions under the same license as the original.

👥 Contributors

NAC Team (Dataset Curation & Processing)

—Team Lead: Augustine, Silver, Timmy
—Contributors: Bryan, Ekene, Emmanuella, Shamsa

Original Data Creators

—UD_Naija-NSC Team (Universal Dependencies)

🙏 Acknowledgements

This dataset builds on the same UDNaija-NSC segmentation-and-alignment pipeline used to produce [`timniel/PidginASRDatasetCombined`](https://huggingface.co/datasets/timniel/PidginASRDataset_Combined). Credit and thanks go to timniel and the NAC Team for that earlier combined dataset and the processing approach it established — this release extends it with per-sample unique IDs, speaker attribution, clip timing, and source provenance fields.

Pushed to: voicedata/pidginData