273 lines
11 KiB
Markdown
273 lines
11 KiB
Markdown
---
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license: apache-2.0
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language:
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- nl
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base_model: openai/whisper-large-v3
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tags:
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- automatic-speech-recognition
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- whisper
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- dutch
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- speech
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- audio
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- synthetic-data
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- asr
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- hf-asr-leaderboard
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datasets:
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- mozilla-foundation/common_voice_17_0
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- yuriyvnv/synthetic_transcript_nl
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model-index:
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- name: whisper-large-v3-high-mixed-nl
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results:
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- task:
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type: automatic-speech-recognition
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name: Automatic Speech Recognition
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dataset:
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name: Common Voice 17.0 (Dutch)
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type: mozilla-foundation/common_voice_17_0
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config: nl
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split: test
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metrics:
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- type: wer
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value: 4.43
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name: Test WER
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- task:
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type: automatic-speech-recognition
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name: Automatic Speech Recognition
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dataset:
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name: Multilingual LibriSpeech (Dutch)
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type: facebook/multilingual_librispeech
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config: dutch
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split: test
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metrics:
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- type: wer
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value: 20.29
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name: Test WER (MLS)
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pipeline_tag: automatic-speech-recognition
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library_name: transformers
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---
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# Whisper-Large-v3 Dutch - High-Quality Filtered Synthetic Data
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This model is a fine-tuned version of [openai/whisper-large-v3](https://huggingface.co/openai/whisper-large-v3) for Dutch automatic speech recognition (ASR). It was trained on Common Voice 17.0 Dutch combined with **WAVe-filtered high-quality synthetic speech data only** using a strict threshold (q ≥ 0.8).
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## Introduction
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### How the Data Was Created
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The training data combines real speech from Common Voice 17.0 with synthetic speech generated through a two-stage pipeline:
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1. **Transcript Generation**: We used GPT-4o-mini to generate Dutch transcripts that match the word count distribution observed in Common Voice, ensuring realistic utterance lengths and diverse linguistic content.
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2. **Speech Synthesis**: Each transcript was converted to audio using OpenAI's TTS-1 model with 9 different voice variants (alloy, ash, coral, echo, fable, nova, onyx, sage, shimmer), producing 34,898 synthetic samples.
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3. **Quality Filtering with WAVe**: Raw synthetic speech often contains defects such as mispronunciations, omitted words, or prosodic anomalies. To address this, we applied **WAVe (Word-Aligned Verification)**, a model that assesses audio-text alignment at the word level rather than the sentence level. WAVe uses multi-head attention to align each word to its corresponding audio frames and assigns per-word confidence scores via a GLU-based scorer. For this model, only samples scoring above the strict threshold (q ≥ 0.8) were retained, resulting in 10,555 high-quality synthetic samples.
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### How the Model Was Created
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The model was fine-tuned from `openai/whisper-large-v3` using the Hugging Face Transformers library with the following approach:
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1. **Mixed Training**: Combined 34,952 real speech samples from Common Voice 17.0 Dutch with 10,555 strictly WAVe-filtered high-quality synthetic samples (45,507 total).
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2. **Optimization**: Trained for 5 epochs with a learning rate of 5e-6, global batch size of 256, and BF16 precision on an NVIDIA H200 GPU.
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3. **Checkpoint Selection**: The best checkpoint was selected based on validation loss, occurring at step 350 with a validation loss of 0.0552.
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This high-quality filtering approach achieves **35% reduction in training steps** compared to using all synthetic data, while maintaining excellent ASR performance.
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## Model Details
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| Property | Value |
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|----------|-------|
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| **Base Model** | openai/whisper-large-v3 |
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| **Language** | Dutch (nl) |
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| **Task** | Automatic Speech Recognition (transcribe) |
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| **Parameters** | 1550M |
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| **Training Data** | Common Voice 17.0 + High-Quality Synthetic (q ≥ 0.8) |
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| **Total Training Samples** | 45,507 |
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| **Sampling Rate** | 16kHz |
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## Evaluation Results
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### This Model (whisper-large-v3-high-mixed-nl)
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| Metric | Value |
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|--------|-------|
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| **Validation Loss** | 0.0520 |
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| **Validation WER** | 3.57% |
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| **Test WER (Common Voice)** | 4.43% |
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| **Test WER (MLS)** | 20.29% |
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| **Best Checkpoint** | Step 350 |
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| **Max Training Steps** | 890 |
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### Comparison with Other Training Configurations (Whisper-Large-v3 Dutch)
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| Training Data | Max Steps | Val Loss | Val WER | Test WER (CV) | Test WER (MLS) |
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|---------------|-----------|----------|---------|---------------|----------------|
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| Common Voice Only | 680 | 0.0549 | 3.56% | 4.39% | 22.43% |
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| **High-Quality Filtered + CV** | **890** | **0.0520** | **3.57%** | **4.43%** | **20.29%** |
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| Mid-High Quality Filtered + CV | 1,270 | 0.0570 | 3.63% | 4.48% | 17.25% |
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| All Synthetic + CV (Unfiltered) | 1,365 | 0.0560 | 3.61% | 4.44% | 17.02% |
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### Key Performance Highlights
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- **Most efficient training**: Only 890 max steps (35% fewer than unfiltered)
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- **Best validation loss** (0.0520) among all Whisper-Large-v3 Dutch configurations
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- **Competitive in-domain performance**: 4.43% Test WER on Common Voice
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- **9.5% relative improvement** on MLS benchmark vs baseline (20.29% vs 22.43%)
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- **Best quality-to-compute ratio**: Strong results with only top-tier synthetic data (30.2%)
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## Training Data
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### Dataset Composition
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| Source | Samples | Description |
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|--------|---------|-------------|
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| [Common Voice 17.0 Dutch](https://huggingface.co/datasets/mozilla-foundation/common_voice_17_0) | 34,952 | Real speech from Mozilla's crowdsourced dataset |
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| [Synthetic Transcript NL](https://huggingface.co/datasets/yuriyvnv/synthetic_transcript_nl) (q ≥ 0.8) | 10,555 | Strictly WAVe-filtered TTS audio (high quality only) |
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| **Total** | **45,507** | |
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### Synthetic Data Generation Pipeline
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The synthetic dataset ([yuriyvnv/synthetic_transcript_nl](https://huggingface.co/datasets/yuriyvnv/synthetic_transcript_nl)) was generated using:
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1. **Transcript Generation**: GPT-4o-mini, matching Common Voice word count distribution
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2. **Speech Synthesis**: OpenAI TTS-1 model with 9 voice variants (alloy, ash, coral, echo, fable, nova, onyx, sage, shimmer)
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3. **Quality Filtering**: WAVe model with strict threshold q ≥ 0.8 (high quality only)
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### WAVe Quality Distribution (Dutch Synthetic Data)
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| Quality Level | Samples | Percentage | Used in This Model |
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|--------------|---------|------------|-------------------|
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| High (q ≥ 0.8) | 10,555 | 30.2% | ✓ |
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| Medium (0.5 ≤ q < 0.8) | 19,627 | 56.2% | ✗ |
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| Low (q < 0.5) | 4,716 | 13.5% | ✗ |
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This strict threshold retains only the top 30.2% of synthetic samples, prioritizing quality over quantity for maximum training efficiency.
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## Training Procedure
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### Hyperparameters
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| Parameter | Value |
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|-----------|-------|
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| Learning Rate | 5e-6 |
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| Batch Size (Global) | 256 |
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| Warmup Steps | 200 |
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| Max Epochs | 5 |
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| Precision | BF16 |
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| Optimizer | AdamW (fused) |
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| Eval Steps | 50 |
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| Metric for Best Model | eval_loss |
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### Training Infrastructure
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- **GPU**: NVIDIA H200 (140GB VRAM)
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- **Operating System**: Ubuntu 22.04
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- **Framework**: Hugging Face Transformers
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### Training Curve
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```
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Step 100: val_loss = 0.0588
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Step 200: val_loss = 0.0562
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Step 250: val_loss = 0.0561
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Step 350: val_loss = 0.0552 ← Best checkpoint
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Step 500: val_loss = 0.0601
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Step 650: val_loss = 0.0627
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Step 850: val_loss = 0.0680
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```
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## Usage
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### Transcription Pipeline
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```python
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from transformers import pipeline
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transcriber = pipeline(
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"automatic-speech-recognition",
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model="yuriyvnv/whisper-large-v3-high-mixed-nl",
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device="cuda"
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)
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result = transcriber("path/to/dutch_audio.wav")
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print(result["text"])
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```
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### Direct Model Usage
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```python
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from transformers import WhisperProcessor, WhisperForConditionalGeneration
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import librosa
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processor = WhisperProcessor.from_pretrained("yuriyvnv/whisper-large-v3-high-mixed-nl")
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model = WhisperForConditionalGeneration.from_pretrained("yuriyvnv/whisper-large-v3-high-mixed-nl")
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model.to("cuda")
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audio, sr = librosa.load("path/to/dutch_audio.wav", sr=16000)
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input_features = processor(audio, sampling_rate=16000, return_tensors="pt").input_features.to("cuda")
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predicted_ids = model.generate(input_features)
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transcription = processor.batch_decode(predicted_ids, skip_special_tokens=True)[0]
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print(transcription)
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```
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### Specifying Language
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```python
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model.generation_config.language = "nl"
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model.generation_config.task = "transcribe"
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```
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## Methodology
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This model leverages **WAVe (Word-Aligned Verification)**, a word-level quality assessment method for filtering synthetic speech data. Unlike sentence-level filtering approaches, WAVe:
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- Aligns each word to its corresponding audio frames using multi-head attention
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- Assigns per-word confidence scores via a GLU-based scorer
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- Detects localized synthesis errors (mispronunciations, omitted words, prosodic anomalies)
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- Achieves **6.5% improvement** over sentence-level filtering methods
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The strict threshold (q ≥ 0.8) retains only the top 30.2% of synthetic samples, prioritizing quality over quantity for maximum training efficiency.
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## When to Use This Model
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This model is ideal when:
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- **Compute resources are limited**: 35% fewer training steps than unfiltered approaches
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- **Quick fine-tuning is needed**: Smaller dataset (45,507 samples) enables faster iteration
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- **Best validation performance required**: Achieves lowest validation loss (0.0520)
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- **Quality over quantity**: Only top-tier synthetic data (30.2%) for clean training signal
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Consider other variants based on your needs:
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- [whisper-large-v3-mixed-cv-nl](https://huggingface.co/yuriyvnv/whisper-large-v3-mixed-cv-nl): Better cross-domain performance with more data
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- [whisper-large-v3-cv-fully-synthetic-nl](https://huggingface.co/yuriyvnv/whisper-large-v3-cv-fully-synthetic-nl): Best cross-domain generalization (17.02% MLS)
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## Limitations
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- **Domain specificity**: Optimized for general Dutch; may underperform on technical domains
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- **Acoustic conditions**: Trained on clean speech; noise robustness not guaranteed
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- **Dialect coverage**: Performance may vary across Dutch regional variants
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## Citation
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```bibtex
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@article{perezhohin2024enhancing,
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title={Enhancing Automatic Speech Recognition: Effects of Semantic Audio Filtering on Models Performance},
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author={Perezhohin, Yuriy and Santos, Tiago and Costa, Victor and Peres, Fernando and Castelli, Mauro},
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journal={IEEE Access},
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year={2024},
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publisher={IEEE}
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}
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```
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## References
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- **Base Model**: [openai/whisper-large-v3](https://huggingface.co/openai/whisper-large-v3)
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- **Training Data (Real)**: [mozilla-foundation/common_voice_17_0](https://huggingface.co/datasets/mozilla-foundation/common_voice_17_0)
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- **Training Data (Synthetic)**: [yuriyvnv/synthetic_transcript_nl](https://huggingface.co/datasets/yuriyvnv/synthetic_transcript_nl)
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- **Whisper Paper**: [Robust Speech Recognition via Large-Scale Weak Supervision](https://arxiv.org/abs/2212.04356)
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- **IEEE Access Paper**: [Enhancing ASR with Semantic Audio Filtering](https://ieeexplore.ieee.org/document/10720758)
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## License
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Apache 2.0 |