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SLR83

SLR83#

This config can be used to prepare UK and Ireland English Dialect (SLR83) datasets in the NeMo format. The original data does not contain any splits, so we provide a custom way to split the data. See https://arxiv.org/abs/2210.03255 for details on the data splits.

Note that SLR83 consists of 11 different accents and dialects and we do not combine them together. You will need to run this config 11 times with different command-line parameters to get all the datasets and if you want to combine them all together, this currently needs to be done manually.

This config performs the following data processing.

  1. Downloads and extracts the data from the official website.

  2. Lower-cases all text and removes - characters (that’s the only punctuation available in the transcription).

  3. Drops all utterances with non-alphabet symbols.

  4. Splits the data into train, dev or test, depending on the config parameters.

Required arguments.

  • workspace_dir: specify the workspace folder where all audio files will be stored.

  • data_split: should be “train”, “dev” or “test”.

  • dialect: should be on of the

    • irish_english_male

    • midlands_english_female

    • midlands_english_male

    • northern_english_female

    • northern_english_male

    • scottish_english_female

    • scottish_english_male

    • southern_english_female

    • southern_english_male

    • welsh_english_female

    • welsh_english_male

Note that you can customize any part of this config either directly or from command-line.

Output format.

This config dumps the final manifest at ${workspace_dir}/${dialect}/${data_split}_manifest.json. The output manifest contains the following fields:

  • audio_filepath (str): relative path to the audio files.

  • text (str): transcription (lower-case without punctuation).

  • duration (float): audio duration in seconds.

Config link: dataset_configs/english/slr83/config.yaml