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  license: apache-2.0
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  ---
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+ language:
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+ - cy
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+ - en
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+ datasets:
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+ - common_voice
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+ metrics:
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+ - wer
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+ tags:
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+ - automatic-speech-recognition
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+ - speech
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  license: apache-2.0
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+ model-index:
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+ - name: wav2vec2-xlsr-ft-en-cy
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+ results:
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+ - task:
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+ name: Speech Recognition
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+ type: automatic-speech-recognition
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+ dataset:
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+ name: Common Voice cy
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+ type: common_voice
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+ args: cy
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+ metrics:
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+ - name: Test WER
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+ type: wer
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+ value: 17.70%
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  ---
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+
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+ # wav2vec2-xlsr-ft-en-cy
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+
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+ A speech recognition acoustic model for Welsh and English, fine-tuned from [facebook/wav2vec2-large-xlsr-53](https://huggingface.co/facebook/wav2vec2-large-xlsr-53) using English/Welsh balanced data derived from version 11 of their respective Common Voice datasets (https://commonvoice.mozilla.org/cy/datasets). Custom bilingual Common Voice train/dev and test splits were built using the scripts at https://github.com/techiaith/docker-commonvoice-custom-splits-builder#introduction
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+
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+ Source code and scripts for training wav2vec2-xlsr-ft-en-cy can be found at [https://github.com/techiaith/docker-wav2vec2-cy](https://github.com/techiaith/docker-wav2vec2-cy/blob/main/train/fine-tune/python/run_en_cy.sh).
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+
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+
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+
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+ ## Usage
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+
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+ The wav2vec2-xlsr-ft-en-cy model can be used directly as follows:
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+
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+ ```python
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+ import torch
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+ import torchaudio
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+ import librosa
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+
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+ from transformers import Wav2Vec2ForCTC, Wav2Vec2Processor
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+
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+ processor = Wav2Vec2Processor.from_pretrained("techiaith/wav2vec2-xlsr-ft-en-cy")
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+ model = Wav2Vec2ForCTC.from_pretrained("techiaith/wav2vec2-xlsr-ft-en-cy")
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+
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+ audio, rate = librosa.load(audio_file, sr=16000)
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+
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+ inputs = processor(audio, sampling_rate=16_000, return_tensors="pt", padding=True)
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+
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+ with torch.no_grad():
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+ tlogits = model(inputs.input_values, attention_mask=inputs.attention_mask).logits
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+
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+ # greedy decoding
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+ predicted_ids = torch.argmax(logits, dim=-1)
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+
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+ print("Prediction:", processor.batch_decode(predicted_ids))
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+
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+ ```
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+
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+ ## Evaluation
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+
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+
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+ According to a balanced English+Welsh test set derived from Common Voice version 11, the WER of techiaith/wav2vec2-xlsr-ft-en-cy is **17.7%**
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+
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+ However, when evaluated with language specific test sets, the model exhibits a bias to perform better with Welsh.
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+
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+ | Common Voice Test Set Language | WER | CER |
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+ | -------- | --- | --- |
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+ | EN+CY | 17.07| 7.32 |
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+ | EN | 27.54 | 11.6 |
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+ | CY | 7.13 | 2.2 |