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README.md
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# OpenAI Whisper-Base Fine-Tuned Model for Speech-to-Text
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This repository hosts a fine-tuned version of the OpenAI Whisper-Base model optimized for speech-to-text tasks using the [Mozilla Common Voice 13.0](https://commonvoice.mozilla.org/) dataset. The model is designed to efficiently transcribe speech into text while maintaining high accuracy.
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## Model Details
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- **Model Architecture**: OpenAI Whisper-Base
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- **Task**: Speech-to-Text
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- **Dataset**: [Mozilla Common Voice 13.0](https://commonvoice.mozilla.org/)
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- **Quantization**: FP16
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- **Fine-tuning Framework**: Hugging Face Transformers
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## π Usage
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### Installation
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```bash
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pip install transformers torch
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```
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### Loading the Model
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```python
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from transformers import WhisperProcessor, WhisperForConditionalGeneration
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import torch
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device = "cuda" if torch.cuda.is_available() else "cpu"
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model_name = "AventIQ-AI/whisper-speech-text"
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model = WhisperForConditionalGeneration.from_pretrained(model_name).to(device)
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processor = WhisperProcessor.from_pretrained(model_name)
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```
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### Speech-to-Text Inference
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```python
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import torchaudio
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# Load and process audio file
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def transcribe(audio_path):
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waveform, sample_rate = torchaudio.load(audio_path)
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inputs = processor(waveform, sampling_rate=sample_rate, return_tensors="pt").input_features.to(device)
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# Generate transcription
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with torch.no_grad():
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predicted_ids = model.generate(inputs)
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transcription = processor.batch_decode(predicted_ids, skip_special_tokens=True)[0]
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return transcription
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# Example usage
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audio_file = "sample_audio.wav"
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print(transcribe(audio_file))
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```
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## π Evaluation Results
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After fine-tuning the Whisper-Base model for speech-to-text, we evaluated the model's performance on the validation set from the Common Voice 13.0 dataset. The following results were obtained:
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| Metric | Score | Meaning |
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|------------|--------|------------------------------------------------|
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| **WER** | 8.2% | Word Error Rate: Measures transcription accuracy |
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| **CER** | 4.5% | Character Error Rate: Measures character-level accuracy |
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## Fine-Tuning Details
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### Dataset
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The Mozilla Common Voice 13.0 dataset, containing diverse multilingual speech samples, was used for fine-tuning the model.
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### Training
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- **Number of epochs**: 3
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- **Batch size**: 8
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- **Evaluation strategy**: epochs
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### Quantization
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Post-training quantization was applied using PyTorch's built-in quantization framework to reduce the model size and improve inference efficiency.
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## π Repository Structure
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```bash
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.
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βββ model/ # Contains the quantized model files
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βββ tokenizer_config/ # Tokenizer configuration and vocabulary files
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βββ model.safetensors/ # Quantized Model
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βββ README.md # Model documentation
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```
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## β οΈ Limitations
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- The model may struggle with highly noisy or overlapping speech.
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- Quantization may lead to slight degradation in accuracy compared to full-precision models.
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- Performance may vary across different accents and dialects.
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## π€ Contributing
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Contributions are welcome! Feel free to open an issue or submit a pull request if you have suggestions or improvements.
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