GigaSpeech Dataset Overview

Dataset Version

• Version: 1.0.0
• Release Date: July 5, 2021

Dataset Download

• Download Steps:
  1. Fill out the Google Form to obtain access permission.
  2. Choose one of the following options:
     • Option A: Follow the instructions in the reply email to obtain the original release version.
     • Option B: Retrieve the pre‑processed version from HuggingFace.

Dataset Details

Audio Sources

• Language: English
• Total Duration: 33,005 hours (including 10,000 hours of high‑quality manual transcription)

Transcribed Training Subsets

Transcribed Evaluation Subsets

Data Preparation Guide

• Data preparation scripts: Provide scripts for various ASR toolkits, e.g., Kaldi scripts located in the toolkits/kaldi directory.

Metadata Files

• Filename: GigaSpeech.json
• Content: Includes audio file paths, segments, transcription texts, etc.

Audio Processing

• Sample Rate: 16 kHz
• Format: Opus compressed format

Text Pre‑processing

• Punctuation: Preserve four punctuation symbols (, , , )
• Noise tags: Mark non‑speech segments, recommended to discard during training.

Text Post‑processing

• Fillers: Suggested removal before WER calculation to ensure fair comparison across toolkits.

Citation

• Please cite the following paper:

  @inproceedings{GigaSpeech2021,
    title={GigaSpeech: An Evolving, Multi-domain ASR Corpus with 10,000 Hours of Transcribed Audio},
    booktitle={Proc. Interspeech 2021},
    year={2021},
    author={Guoguo Chen, Shuzhou Chai, Guanbo Wang, Jiayu Du, Wei‑Qiang Zhang, Chao Weng, Dan Su, Daniel Povey, Jan Trmal, Junbo Zhang, Mingjie Jin, Sanjeev Khudanpur, Shinji Watanabe, Shuaijiang Zhao, Wei Zou, Xiangang Li, Xuchen Yao, Yongqing Wang, Yujun Wang, Zhao You, Zhiyong Yan}
  }