Datasets:

SpeechCollector
/

ChuvashRaw

license: cc-by-nc-4.0
dataset_info:
  - config_name: bib
    features:
      - name: audio
        dtype:
          audio:
            decode: false
      - name: file_name
        dtype: string
      - name: duration
        dtype: float32
      - name: book_id
        dtype: string
      - name: segment_id
        dtype: int32
      - name: text
        dtype: string
      - name: segments
        list:
          - name: start
            dtype: float64
          - name: end
            dtype: float64
          - name: text
            dtype: string
    splits:
      - name: train
        num_bytes: 31500547473
        num_examples: 323820
    download_size: 29305671741
    dataset_size: 31500547473
  - config_name: bible
    features:
      - name: audio
        dtype:
          audio:
            decode: false
      - name: file_name
        dtype: string
      - name: duration
        dtype: float32
      - name: book_id
        dtype: string
      - name: segment_id
        dtype: int32
      - name: text
        dtype: string
      - name: segments
        list:
          - name: start
            dtype: float64
          - name: end
            dtype: float64
          - name: text
            dtype: string
    splits:
      - name: train
        num_bytes: 2414630269
        num_examples: 24437
    download_size: 2252132861
    dataset_size: 2414630269
  - config_name: books_part_1
    features:
      - name: audio
        dtype:
          audio:
            decode: false
      - name: file_name
        dtype: string
      - name: duration
        dtype: float32
      - name: book_id
        dtype: string
      - name: segment_id
        dtype: int32
      - name: text
        dtype: string
      - name: segments
        list:
          - name: start
            dtype: float64
          - name: end
            dtype: float64
          - name: text
            dtype: string
    splits:
      - name: train
        num_bytes: 2184795067
        num_examples: 9481
    download_size: 2122857794
    dataset_size: 2184795067
  - config_name: books_part_2
    features:
      - name: audio
        dtype:
          audio:
            decode: false
      - name: file_name
        dtype: string
      - name: duration
        dtype: float32
      - name: book_id
        dtype: string
      - name: segment_id
        dtype: int32
      - name: text
        dtype: string
      - name: segments
        list:
          - name: start
            dtype: float64
          - name: end
            dtype: float64
          - name: text
            dtype: string
    splits:
      - name: train
        num_bytes: 2895978992
        num_examples: 9043
    download_size: 2836918123
    dataset_size: 2895978992
  - config_name: default
    features:
      - name: audio
        dtype:
          audio:
            decode: false
      - name: file_name
        dtype: string
      - name: duration
        dtype: float32
      - name: book_id
        dtype: string
      - name: segment_id
        dtype: int32
      - name: text
        dtype: string
      - name: segments
        list:
          - name: start
            dtype: float64
          - name: end
            dtype: float64
          - name: text
            dtype: string
    splits:
      - name: train
        num_bytes: 874432307
        num_examples: 4195
    download_size: 831997435
    dataset_size: 874432307
  - config_name: lirics
    features:
      - name: audio
        dtype:
          audio:
            decode: false
      - name: file_name
        dtype: string
      - name: duration
        dtype: float32
      - name: book_id
        dtype: string
      - name: segment_id
        dtype: int32
      - name: text
        dtype: string
      - name: segments
        list:
          - name: start
            dtype: float64
          - name: end
            dtype: float64
          - name: text
            dtype: string
    splits:
      - name: train
        num_bytes: 874432307
        num_examples: 4195
    download_size: 831997435
    dataset_size: 874432307
configs:
  - config_name: bib
    data_files:
      - split: train
        path: bib/train-*
  - config_name: bible
    data_files:
      - split: train
        path: bible/train-*
  - config_name: books_part_1
    data_files:
      - split: train
        path: books_part_1/train-*
  - config_name: books_part_2
    data_files:
      - split: train
        path: books_part_2/train-*
  - config_name: default
    data_files:
      - split: train
        path: data/train-*
  - config_name: lirics
    data_files:
      - split: train
        path: lirics/train-*
task_categories:
  - automatic-speech-recognition
language:
  - cv
tags:
  - audio
  - speech
  - tts
size_categories:
  - 100K<n<1M

Chuvash Audio Dataset (Unlabeled)

This dataset consists of raw, unlabeled audio recordings primarily in the Chuvash language. It is aggregated from various sources including audiobooks, religious texts, and lyrical content. It is intended for self-supervised learning, pre-training automatic speech recognition (ASR) models, or audio analysis tasks.

Note: While the primary language is Chuvash, some recordings may contain segments of Russian speech or code-switching, reflecting the bilingual nature of the region.

Dataset Structure & Statistics

The dataset is divided into several subsets. Below is the summary of the data distribution:

Subset Name	Description	Files	Hours	Seconds
lirics	Songs / Lyrical content	4,195	3.17	11,421.79
books_part_1	Audiobooks (Part 1)	9,481	7.28	26,193.70
books_part_2	Audiobooks (Part 2)	9,043	8.63	31,067.10
bible	Religious texts	24,437	13.88	49,980.20
bib	General Audiobooks Collection	323,820	186.08	669,870.52
TOTAL	All Subsets Combined	370,976	219.04	788,533.31

Audio Specifications

Format: Flac

Length Distributions by Subset

Below are the duration distributions for each subset of the data.

1. Subset: Lirics

2. Subset: Books (Parts 1 & 2)

3. Subset: Bible

4. Subset: Bib (Large Collection of audiobooks)

(Diverse audiobooks)

Usage

This dataset does not contain transcriptions. It is suitable for:

Self-supervised pre-training (e.g., Wav2Vec 2.0, HuBERT, XLSR)
Language identification (Chuvash vs. Russian)
Voice Activity Detection (VAD) analysis
Prosody and speech synthesis research

License

Creative Commons Attribution Non Commercial 4.0

License and acceptable use

License: CC BY-NC 4.0 — free for research and other non-commercial use.
Commercial use: possible under a separate agreement with the SpeechCollector community — reach out on Telegram: @Michaelya.
Surveillance: please do not use this dataset to build systems for surveillance, covert monitoring, or tracking of individuals.

Project website (ru / en / cv): https://chuvash-asr.vercel.app