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README.md
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---
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license: mit
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datasets:
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- jacktol/atc-dataset
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language:
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- en
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metrics:
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- wer
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base_model:
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- openai/whisper-medium.en
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pipeline_tag: automatic-speech-recognition
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tags:
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- aviation
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- atc
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- aircraft
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- communication
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model-index:
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- name: Whisper Medium EN Fine-Tuned for ATC (Faster-Whisper)
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results:
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- task:
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type: automatic-speech-recognition
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dataset:
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name: ATC Dataset
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type: jacktol/atc-dataset
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metrics:
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- name: Word Error Rate (WER)
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type: wer
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value: 15.08
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source:
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name: ATC Transcription Evaluation
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url: https://huggingface.co/jacktol/whisper-medium.en-fine-tuned-for-ATC-faster-whisper
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---
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# Whisper Medium EN Fine-Tuned for Air Traffic Control (ATC) - Faster-Whisper Optimized
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## Model Overview
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This model is a fine-tuned version of OpenAI's Whisper Medium EN model, specifically trained on **Air Traffic Control (ATC)** communication datasets. The fine-tuning process significantly improves transcription accuracy on domain-specific aviation communications, reducing the **Word Error Rate (WER) by 84%**, compared to the original pretrained model. The model is particularly effective at handling accent variations and ambiguous phrasing often encountered in ATC communications.
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This model has been **converted to an optimized `.bin` format**, making it compatible with **Faster-Whisper** for faster and more efficient inference.
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- **Base Model**: OpenAI Whisper Medium EN
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- **Fine-tuned Model WER**: 15.08%
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- **Pretrained Model WER**: 94.59%
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- **Relative Improvement**: 84.06%
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- **Optimized Format**: Compatible with Faster-Whisper
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You can access the fine-tuned model on Hugging Face:
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- [Whisper Medium EN Fine-Tuned for ATC](https://huggingface.co/jacktol/whisper-medium.en-fine-tuned-for-ATC)
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- [Whisper Medium EN Fine-Tuned for ATC (Faster Whisper)](https://huggingface.co/jacktol/whisper-medium.en-fine-tuned-for-ATC-faster-whisper)
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## Model Description
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Whisper Medium EN fine-tuned for ATC is optimized to handle short, distinct transmissions between pilots and air traffic controllers. It is fine-tuned using data from the **[ATC Dataset](https://huggingface.co/datasets/jacktol/atc-dataset)**, a combined and cleaned dataset sourced from the following:
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- **[ATCO2 corpus](https://huggingface.co/datasets/Jzuluaga/atco2_corpus_1h)** (1-hour test subset)
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- **[UWB-ATCC corpus](https://huggingface.co/datasets/Jzuluaga/uwb_atcc)**
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The **ATC Dataset** merges these two original sources, filtering and refining the data to enhance transcription accuracy for domain-specific ATC communications. The model has been further **optimized to a `.bin` format for compatibility with Faster-Whisper**, ensuring faster and more efficient processing.
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## Intended Use
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The fine-tuned Whisper model is designed for:
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- **Transcribing aviation communication**: Providing accurate transcriptions for ATC communications, including accents and variations in English phrasing.
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- **Air Traffic Control Systems**: Assisting in real-time transcription of pilot-ATC conversations, helping improve situational awareness.
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- **Research and training**: Useful for researchers, developers, or aviation professionals studying ATC communication or developing new tools for aviation safety.
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You can test the model online using the [ATC Transcription Assistant](https://huggingface.co/spaces/jacktol/ATC-Transcription-Assistant), which lets you upload audio files and generate transcriptions.
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## Training Procedure
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- **Hardware**: Fine-tuning was conducted on two A100 GPUs with 80GB memory.
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- **Epochs**: 10
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- **Learning Rate**: 1e-5
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- **Batch Size**: 32 (effective batch size with gradient accumulation)
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- **Augmentation**: Dynamic data augmentation techniques (Gaussian noise, pitch shifting, etc.) were applied during training.
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- **Evaluation Metric**: Word Error Rate (WER)
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## Limitations
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While the fine-tuned model performs well in ATC-specific communications, it may not generalize as effectively to other domains of speech. Additionally, like most speech-to-text models, transcription accuracy can be affected by extremely poor-quality audio or heavily accented speech not encountered during training.
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## References
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- **Blog Post**: [Fine-Tuning Whisper for ATC: 84% Improvement in Transcription Accuracy](https://jacktol.net/posts/fine-tuning_whisper_for_atc/)
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- **GitHub Repository**: [Fine-Tuning Whisper on ATC Data](https://github.com/jack-tol/fine-tuning-whisper-on-atc-data/tree/main)
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