Automatic Speech Recognition
Transformers
Safetensors
Danish
qwen3_asr
danish
qwen
asr
speech-to-text
coral
podcast
streaming
Eval Results (legacy)
Instructions to use pluttodk/milo-asr with libraries, inference providers, notebooks, and local apps. Follow these links to get started.
- Libraries
- Transformers
How to use pluttodk/milo-asr with Transformers:
# Use a pipeline as a high-level helper from transformers import pipeline pipe = pipeline("automatic-speech-recognition", model="pluttodk/milo-asr", device_map="auto")# Load model directly from transformers import AutoProcessor, AutoModelForMultimodalLM processor = AutoProcessor.from_pretrained("pluttodk/milo-asr") model = AutoModelForMultimodalLM.from_pretrained("pluttodk/milo-asr", device_map="auto") - Notebooks
- Google Colab
- Kaggle
Upload README.md with huggingface_hub
Browse files
README.md
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- asr
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- speech-to-text
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- coral
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- streaming
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datasets:
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- alexandrainst/coral
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split: test
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metrics:
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- type: wer
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value:
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name: WER
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- type: cer
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value:
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name: CER
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---
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# Milo-ASR: Dansk
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**Milo-ASR** er en dansk
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| **WER på CoRal v2** | 18,47% (14% bedre end hviske-v3-conversation) |
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| **CER på CoRal v2** | 7,86% (11% bedre end hviske-v3-conversation) |
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| **Real-Time Factor** | 0,087 (43% hurtigere end hviske-v3-conversation) |
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| **Modelstørrelse** | ~1,7B parametre |
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###
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## Sammenligning med andre modeller
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### CoRal v2 testsæt (9.123 eksempler, ~17,3 timer)
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| Model | WER | CER |
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|-------|-----|-----|
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| **Milo-ASR** | **
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| hviske-v2 (Whisper
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- **14% lavere** Word Error Rate (18,47% vs. 21,47%)
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- **11% lavere** Character Error Rate (7,86% vs. 8,79%)
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- **43% hurtigere** inferens (RTF: 0,087 vs. 0,153)
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- **15% færre** parametre (~1,7B vs. ~2B)
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---
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##
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### Installation
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```bash
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pip install qwen-asr transformers torch
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```
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### Basis brug
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```python
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from qwen_asr import Qwen3ASRModel
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# Indlæs Milo-ASR
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model = Qwen3ASRModel.from_pretrained(
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"pluttodk/Milo-ASR",
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dtype="bfloat16",
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device_map="cuda:0",
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)
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# Transskriber en dansk lydfil
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results = model.transcribe(
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audio="
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language="Danish",
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)
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print(results[0].text)
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```
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## Avanceret brug
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### Batch-transskription
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Kør flere filer på én gang:
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```python
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model = Qwen3ASRModel.from_pretrained(
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"pluttodk/Milo-ASR",
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dtype="bfloat16",
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device_map="cuda:0",
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max_inference_batch_size=16,
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)
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audio_filer = ["lyd1.wav", "lyd2.wav", "lyd3.wav"]
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results = model.transcribe(
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audio=audio_filer,
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language="Danish",
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)
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for
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print(
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```
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###
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Få tidsstempler på ordniveau via forced aligner:
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```python
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from qwen_asr import Qwen3ASRModel
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model = Qwen3ASRModel.from_pretrained(
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"pluttodk/Milo-ASR",
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forced_aligner="Qwen/Qwen3-ForcedAligner-0.6B",
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results = model.transcribe(
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audio="
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language="Danish",
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return_time_stamps=True,
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print(f"{item.start_time:.2f}s - {item.end_time:.2f}s: {item.text}")
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```
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### Streaming
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Hvis du vil have live transskription, fx fra en mikrofon:
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```python
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from qwen_asr import Qwen3ASRModel
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model = Qwen3ASRModel.LLM(
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model="pluttodk/Milo-ASR",
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gpu_memory_utilization=0.8,
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)
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state = model.init_streaming_state(
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language="Danish",
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chunk_size_sec=2.0,
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)
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import numpy as np
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yield np.array(chunk, dtype=np.float32)
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for lyd_chunk in lyd_stream():
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state = model.streaming_transcribe(lyd_chunk, state)
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print(f"Løbende transskription: {state.text}")
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state = model.finish_streaming_transcribe(state)
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print(f"Endelig transskription: {state.text}")
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```
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### Direkte brug med Transformers
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Vil du have fuld kontrol over modellen, kan du bruge Transformers direkte:
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```python
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from transformers import AutoModel, AutoProcessor
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import torch
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import librosa
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model = AutoModel.from_pretrained(
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"pluttodk/Milo-ASR",
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trust_remote_code=True,
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torch_dtype=torch.bfloat16,
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device_map="cuda:0",
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)
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processor = AutoProcessor.from_pretrained(
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"pluttodk/Milo-ASR",
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trust_remote_code=True,
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)
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audio, sr = librosa.load("sti/til/lyd.wav", sr=16000, mono=True)
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messages = [
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{"role": "system", "content": ""},
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{"role": "user", "content": [{"type": "audio", "audio": audio}]},
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]
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text = processor.apply_chat_template(
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messages,
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add_generation_prompt=True,
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tokenize=False
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)
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text = text + "language Danish<asr_text>"
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inputs = processor(text=[text], audio=[audio], return_tensors="pt", padding=True)
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inputs = inputs.to(model.device).to(model.dtype)
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output_ids = model.generate(**inputs, max_new_tokens=512)
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transskription = processor.batch_decode(
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output_ids[:, inputs["input_ids"].shape[1]:],
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skip_special_tokens=True,
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)[0]
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print(transskription)
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```
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### Sang og baggrundsmusik
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Milo-ASR kan håndtere lyd med sang eller baggrundsmusik:
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```python
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from qwen_asr import Qwen3ASRModel
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model = Qwen3ASRModel.from_pretrained(
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"pluttodk/Milo-ASR",
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dtype="bfloat16",
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device_map="cuda:0",
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)
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results = model.transcribe(
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audio="sti/til/sang.wav",
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language="Danish", # eller None for automatisk sproggenkendelse
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)
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print(results[0].text)
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```
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---
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##
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| Audio Encoder | 24-lags transformer (1024 hidden dim, 16 attention heads) |
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| Text Decoder | 28-lags transformer (2048 hidden dim, 16 attention heads) |
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| Parametre i alt | ~1,7 milliarder |
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| Præcision | bfloat16 |
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| Lydinput | 16kHz mono WAV |
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---
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##
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### Træningsdata
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Milo-ASR er finetunet på [CoRal v2-datasættet](https://huggingface.co/datasets/alexandrainst/coral), som er et dansk talekorpus med:
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- Mange forskellige danske talere på tværs af alder, køn og dialekter
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- Varierende optagelseskvalitet og lydmiljøer
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- Naturlig samtaletale
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- Oplæst tale
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### Træningsopsætning
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**Tilgang:** Supervised Fine-Tuning (SFT) med chat template-formatering
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**Hyperparametre:**
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| Basismodel | Qwen/Qwen3-ASR-1.7B |
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| Læringsrate | 2e-5 |
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| Batchstørrelse (per device) | 8 |
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| Gradient accumulation steps | 4 |
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| Effektiv batchstørrelse | 32 |
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| Epoker | 3 |
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| Warmup ratio | 0,1 |
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| Weight decay | 0,01 |
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| Max gradient norm | 1,0 |
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| Præcision | bfloat16 |
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| Optimizer | AdamW |
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| LR scheduler | Lineært fald |
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| Træningsskridt i alt | 23.448 |
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**Hardware:** NVIDIA GPU'er (~25GB GPU-hukommelse per device)
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---
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##
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### Testdata
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Milo-ASR er evalueret på CoRal v2-testsættet:
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- **9.123 eksempler**
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- **~17,3 timers** lyd
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- Bred repræsentation af danske talere og optagelsesforhold
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### Metrikker
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| Metrik | Beskrivelse |
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|--------|-------------|
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| **WER** | Word Error Rate – andelen af forkert transskriberede ord (lavere er bedre) |
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| **CER** | Character Error Rate – andelen af forkert transskriberede tegn (lavere er bedre) |
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| **RTF** | Real-Time Factor – forholdet mellem procestid og lydvarighed (under 1,0 = hurtigere end realtid) |
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### Resultater
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| Model | WER | CER | RTF | Gennemløb | Parametre |
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|-------|-----|-----|-----|-----------|-----------|
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| **Milo-ASR** | **18,47%** | **7,86%** | **0,087** | **1,69 eks./s** | ~1,7B |
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| hviske-v2 (Whisper Large v2) | 12,74% | 4,94% | 0,154 | 0,95 eks./s | ~1,5B |
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| hviske-v3-conversation (Whisper Large v3) | 21,47% | 8,79% | 0,153 | 0,95 eks./s | ~2B |
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| Whisper Large v3 Turbo | 38,54% | 13,73% | 0,064 | 2,29 eks./s | ~0,8B |
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| Qwen3-ASR-1.7B (base) | 46,03% | 18,85% | 0,100 | 1,46 eks./s | ~1,7B |
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Milo-ASR slår hviske-v3-conversation med 14% på WER og 11% på CER, og er samtidig 43% hurtigere. Sammenlignet med den utrænede Qwen3-ASR-1.7B basismodel falder WER fra 46,03% til 18,47% – et klart tegn på, at finetuning på CoRal v2 gør en stor forskel.
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## Citér modellen
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Bruger du Milo-ASR i dit projekt, må du meget gerne citere:
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```bibtex
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@misc{Milo-ASR,
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}
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```
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```bibtex
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@article{qwen3asr,
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title={Qwen3-ASR Technical Report},
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author={Qwen Team},
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journal={arXiv preprint arXiv:2601.21337},
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year={2025}
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}
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@dataset{coral,
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title={CoRal: A Danish Speech Corpus},
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author={Alexandra Institute},
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year={2024},
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url={https://huggingface.co/datasets/alexandrainst/coral}
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}
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```
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---
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## Tak til
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- [Qwen
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- [Alexandra
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- asr
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- speech-to-text
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- coral
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- podcast
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- streaming
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datasets:
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- alexandrainst/coral
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split: test
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metrics:
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- type: wer
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value: 23.24
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name: WER
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- type: cer
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value: 11.17
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name: CER
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---
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# Milo-ASR: Dansk ASR Model
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**Milo-ASR** er en dansk speech-to-text model baseret på [Qwen3-ASR-1.7B](https://huggingface.co/Qwen/Qwen3-ASR-1.7B), finetuned til at forstå dansk - både oplæst tale og samtaler/podcasts.
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Modellen er trænet på [CoRal v2](https://huggingface.co/datasets/alexandrainst/coral) + danske podcast-data, så den klarer sig godt på tværs af domæner. De fleste andre modeller er kun gode til enten det ene eller det andet.
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## Resultater
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### CoRal v2 (oplæst tale, 10.370 samples)
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| Model | WER | CER |
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|-------|-----|-----|
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| hviske-v2 (Whisper v2) | **17.40%** | **7.96%** |
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| hviske-v3 (Whisper v3) | 21.62% | 9.22% |
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| **Milo-ASR** | 23.24% | 11.17% |
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| Whisper v3 Turbo | 40.35% | 15.51% |
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| Qwen3-ASR base | 46.28% | 19.78% |
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### Podcast (samtaler, 500 samples)
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| Model | WER | CER |
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|-------|-----|-----|
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| **Milo-ASR** | **21.82%** | **15.64%** |
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| hviske-v2 (Whisper v2) | 50.67% | 38.31% |
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| Whisper v3 Turbo | 67.03% | 45.98% |
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| Qwen3-ASR base | 67.52% | 47.71% |
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| hviske-v3 (Whisper v3) | 67.65% | 50.12% |
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Milo-ASR er den eneste model der klarer begge domæner godt. På podcasts er den **2.3x bedre** end næstbedste model (hviske-v2).
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### Plots
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---
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## Quick Start
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```bash
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pip install qwen-asr transformers torch
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```
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```python
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from qwen_asr import Qwen3ASRModel
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model = Qwen3ASRModel.from_pretrained(
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"pluttodk/Milo-ASR",
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dtype="bfloat16",
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device_map="cuda:0",
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)
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results = model.transcribe(
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audio="path/to/danish_audio.wav",
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language="Danish",
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)
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print(results[0].text)
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```
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### Batch Transcription
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```python
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audio_files = ["audio1.wav", "audio2.wav", "audio3.wav"]
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results = model.transcribe(audio=audio_files, language="Danish")
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for r in results:
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print(r.text)
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```
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### Timestamps
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```python
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model = Qwen3ASRModel.from_pretrained(
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"pluttodk/Milo-ASR",
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forced_aligner="Qwen/Qwen3-ForcedAligner-0.6B",
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)
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results = model.transcribe(
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audio="path/to/audio.wav",
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language="Danish",
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return_time_stamps=True,
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)
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print(f"{item.start_time:.2f}s - {item.end_time:.2f}s: {item.text}")
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```
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### Streaming (vLLM)
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```python
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model = Qwen3ASRModel.LLM(
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model="pluttodk/Milo-ASR",
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gpu_memory_utilization=0.8,
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)
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state = model.init_streaming_state(language="Danish", chunk_size_sec=2.0)
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for audio_chunk in audio_stream():
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state = model.streaming_transcribe(audio_chunk, state)
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print(state.text)
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state = model.finish_streaming_transcribe(state)
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```
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---
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## Træningsdetaljer
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Modellen er finetuned i to stages:
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1. **Stage 1**: Qwen3-ASR-1.7B finetuned på CoRal v2 (~250K samples, 3 epochs, lr=2e-5)
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2. **Stage 2**: Fortsat fra stage 1 checkpoint på podcast + Azure podcast data (~141K samples, 8 epochs, lr=1e-5, cosine schedule)
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| Parameter | Stage 2 |
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|-----------|---------|
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| Learning rate | 1e-5 |
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| Batch size | 8 (x4 grad acc = 32 effective) |
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| Epochs | 8 |
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| LR scheduler | Cosine |
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| Warmup ratio | 0.1 |
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| Weight decay | 0.01 |
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| Precision | bfloat16 |
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| Training steps | 35,560 |
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---
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## Ting nedarvet fra Qwen3-ASR
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- Streaming/real-time via vLLM
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- Sang detection (baggrundsmusik)
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- Word-level timestamps
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- 30+ sprog (dansk optimeret)
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- Op til 20 min audio pr. request
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---
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## Citation
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```bibtex
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@misc{Milo-ASR,
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}
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```
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## Acknowledgements
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- [Qwen Team](https://github.com/QwenLM) for Qwen3-ASR
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- [Alexandra Institute](https://alexandra.dk/) for CoRal v2
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