| Speech Data Explorer |
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| [Dash](https://plotly.com/dash/)-based tool for interactive exploration of ASR/TTS datasets. |
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| Features: |
| - dataset's statistics (alphabet, vocabulary, duration-based histograms) |
| - navigation across dataset (sorting, filtering) |
| - inspection of individual utterances (waveform, spectrogram, audio player) |
| - errors' analysis (Word Error Rate, Character Error Rate, Word Match Rate, Mean Word Accuracy, diff) |
| - comparison of two ASR models using interactive word-level accuracy plot |
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| Please make sure that requirements are installed. Then run: |
| ``` |
| python data_explorer.py path_to_manifest.json |
| ``` |
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| To compare word-level accuracy of two ASR models: |
| ``` |
| python data_explorer.py path_to_manifest.json -nc pred_text_{model_1_name} pred_text_{model_2_name} |
| ``` |
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| JSON manifest file should contain the following fields: |
| - "audio_filepath" (path to audio file) |
| - "duration" (duration of the audio file in seconds) |
| - "text" (reference transcript) |
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| Errors' analysis requires "pred_text" (ASR transcript) for all utterances. |
| "Visual comparison requires two or more "pred_text_{model_name}" fields." |
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| Any additional field will be parsed and displayed in 'Samples' tab. |
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