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🇪🇷 Tigre Speech Corpus (Broadcast Audio)

A large-scale, open-source speech dataset for the Tigre language (ISO 639-3: tig), developed to support Automatic Speech Recognition (ASR), speech technology research, and language documentation for one of the least-resourced languages in the Afro-Asiatic family.

This corpus provides hundreds of hours of real-world spoken Tigre, sourced from long-form public radio programming, making it one of the most substantial publicly available speech resources for any low-resource East African language.


Dataset Summary

The dataset is derived from public radio broadcasts, covering a wide range of non-fiction spoken genres:

  • News bulletins
  • Long-form reports
  • Radio interviews
  • Documentaries
  • Public-interest programming These recordings provide natural speech, varied speaking styles, and realistic acoustic conditions—ideal for training robust ASR systems.

Key Statistics

Feature Detail
Language Tigre (tig)
Source Public Radio Broadcasts (News, Interviews, Documentaries)
File Format MP3
Total Files 2,227
Total Duration ~582 hours

This scale makes the corpus valuable for both supervised ASR and self-supervised speech representation learning.


Duration & Distribution

The dataset contains 2,227 MP3 audio files with a combined duration of approximately 582 hours.
The files naturally fall into three nearly equal length categories:

  • Short: 1–11 minutes
  • Medium: 11–14 minutes
  • Long: 14–61 minutes

This balanced distribution is especially beneficial for models that require varied utterance lengths and diverse acoustic environments.


Intended Use

This dataset is ideal for:

Speech Technology

  1. Training and finetuning ASR models (e.g., Wav2Vec2.0, HuBERT, Whisper, MMS).
  2. Pretraining self-supervised speech encoders for low-resource African languages.
  3. Developing acoustic models, segmentation systems, and forced aligners.

Research & Linguistics

  1. Studying Tigre phonetics, prosody, and dialectal variation.
  2. Supporting linguistic documentation and preservation efforts.
  3. Building evaluation benchmarks for East African low-resource speech processing.

Societal Impact

  1. Creating digital tools for accessibility, education, and public information.
  2. Expanding language technology inclusion for Eritrean languages.
  3. Supporting nonprofit and humanitarian applications requiring speech resources.

Ethical & Licensing Notes

  • All recordings originate from publicly available radio broadcasts.
  • The dataset is provided under CC BY-SA 4.0, allowing research and derivative works with attribution.
  • Users must ensure responsible and culturally respectful use.
  • The corpus must not be used for surveillance, profiling, or any harmful activity.

Acknowledgments

This dataset is made possible through the efforts of:

  • Tigre-speaking contributors and archivists preserving audio material
  • The broader Eritrean community supporting language resource creation
  • Researchers working to expand technology access for low-resource languages
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