speech-to-text-finetune

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speech-to-text-finetune

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Blueprint by Mozilla.ai for finetuning a Speech-To-Text model in your own language

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[![Hugging Face](https://img.shields.io/badge/Hugging%20Face-%F0%9F%A4%97-yellow)](https://huggingface.co/)
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[Blueprints Hub](https://developer-hub.mozilla.ai/)
| [Documentation](https://mozilla-ai.github.io/speech-to-text-finetune/)
| [Getting Started](https://mozilla-ai.github.io/speech-to-text-finetune/getting-started)
| [Contributing](CONTRIBUTING.md)

</div>

# Finetuning Speech-to-Text models: a Blueprint by Mozilla.ai for building your own STT/ASR dataset & model

This blueprint enables you to create your own [Speech-to-Text](https://en.wikipedia.org/wiki/Speech_recognition) dataset and model, optimizing performance for your specific language and use case. Everything runs locally—even on your laptop, ensuring your data stays private. You can finetune a model using your own data or leverage the Common Voice dataset, which supports a wide range of languages. To see the full list of supported languages, visit the [CommonVoice website](https://commonvoice.mozilla.org/en/languages).

## Example result on Galician

Input Speech audio:

https://github.com/user-attachments/assets/960f1b4f-04b9-4b8d-b988-d51504401e9a

Text output:

| Ground Truth | [openai/whisper-small](https://huggingface.co/openai/whisper-small) | [mozilla-ai/whisper-small-gl](https://huggingface.co/mozilla-ai/whisper-small-gl) *|
| -------------| -------------| ------------------- |
| O Comité Económico e Social Europeo deu luz verde esta terza feira ao uso de galego, euskera e catalán nas súas sesións plenarias, segundo informou o Ministerio de Asuntos Exteriores nun comunicado no que se felicitou da decisión. | O Comité Económico Social Europeo de Uluz Verde está terza feira a Ousse de Gallego e Uskera e Catalan a súas asesións planarias, segundo informou o Ministerio de Asuntos Exteriores nun comunicado no que se felicitou da decisión. | O Comité Económico Social Europeo deu luz verde esta terza feira ao uso de galego e usquera e catalán nas súas sesións planarias, segundo informou o Ministerio de Asuntos Exteriores nun comunicado no que se felicitou da decisión. |

\* Finetuned on the Galician set Common Voice 17.0

👀 You can find a list of finetuned models, created by this Blueprint, on our HuggingFace [collection](https://huggingface.co/collections/mozilla-ai/common-voice-whisper-67b847a74ad7561781aa10fd).

## Quick-start

| Finetune a STT model on Google Colab | Transcribe using a HuggingFace model | Explore all the functionality on GitHub Codespaces|
|----------------------------------------|---------------------------------------------|---------------------------------------------------|
| [![Try Finetuning on Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/mozilla-ai/speech-to-text-finetune/blob/main/demo/notebook.ipynb) | [![Try on Spaces](https://img.shields.io/badge/%F0%9F%A4%97%20Try%20on-Spaces-blue)](https://huggingface.co/spaces/mozilla-ai/transcribe) | [![Try on Codespaces](https://github.com/codespaces/badge.svg)](https://github.com/codespaces/new?hide_repo_select=true&ref=main&repo=mozilla-ai/speech-to-text-finetune&skip_quickstart=true&machine=standardLinux32gb) |

</div>

## Try it locally

The same instructions apply for the GitHub Codespaces option.

### Setup

1. Use a virtual environment and install dependencies: `pip install -e .` & [ffmpeg](https://ffmpeg.org) e.g. for Ubuntu: `sudo apt install ffmpeg`, for Mac: `brew install ffmpeg`

### Evaluate existing STT models from the HuggingFace repository.

1. Simply execute: `python demo/transcribe_app.py`
2. Add the HF model id of your choice
3. Record a sample of your voice and get the transcribe text back

### Making your own STT model using Custom Data

1. Create your own, local, custom dataset by running this command and following the instructions: `python src/speech_to_text_finetune/make_custom_dataset_app.py`
2. Configure `config.yaml` with the model, custom data directory and hyperparameters of your choice. Note that if you select `push_to_hub: True` you need to have an HF account and log in locally.
3. Finetune a model by running: `python src/speech_to_text_finetune/finetune_whisper.py`
4. Test the finetuned model in the transcription app: `python demo/transcribe_app.py`

### Making your own STT model using Common Voice

There are two ways to download the Common Voice dataset:

#### From Common Voice's website (Recommended)

1. Go to https://commonvoice.mozilla.org/en/datasets, pick your language and dataset version and download the dataset
2. Move the zipped file under a directory of your choice and extract it

#### From HuggingFace

**_Note_**: A Hugging Face account is required.

**_Note 2_**: The Common Voice dataset is not properly maintained on HuggingFace and the latest release there is a much older version.

1. Go to the Common Voice dataset [repo](https://huggingface.co/datasets/mozilla-foundation/common_voice_17_0) and ask for explicit access request (should be approved instantly).
2. On Hugging Face create an [Access Token](https://huggingface.co/docs/hub/en/security-tokens) and in your terminal, run the command `huggingface-cli login` and follow the instructions to log in to your account.

#### _After you have completed the steps above_

3. Configure `config.yaml` with the model, the extracted Common Voice dir **_OR_** the dataset repo id of HF and hyperparameters of your choice.
4. Finetune a model by running: `python src/speech_to_text_finetune/finetune_whisper.py`
5. Test the finetuned model in the transcription app: `python demo/transcribe_app.py`

> [!TIP]
> Run `python demo/model_comparison_app.py` to easily compare the performance of two models side by side ([example](images/model_comparison_example.png)).

## Troubleshooting

If you are having issues / bugs, check our [Troubleshooting](https://mozilla-ai.github.io/speech-to-text-finetune/getting-started/#troubleshooting) section, before opening a new issue.

## License

This project is licensed under the Apache 2.0 License. See the [LICENSE](LICENSE) file for details.

## Contributing

Contributions are welcome! To get started, you can check out the [CONTRIBUTING.md](CONTRIBUTING.md) file.

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