This commit is contained in:
Quentin Fuxa
2025-09-16 23:45:00 +02:00
parent 777ec63a71
commit 1833e7c921
5 changed files with 48 additions and 12 deletions

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@@ -1,4 +1,4 @@
# Available model sizes:
# Available Whisper model sizes:
- tiny.en (english only)
- tiny
@@ -70,4 +70,40 @@
2. Limited resources or need speed? → `small` or smaller
3. Good hardware and want best quality? → `large-v3`
4. Need fast, high-quality transcription without translation? → `large-v3-turbo`
5. Need translation capabilities? → `large-v2` or `large-v3` (avoid turbo)
5. Need translation capabilities? → `large-v2` or `large-v3` (avoid turbo)
_______________________
# Translation Models and Backend
**Language Support**: ~200 languages
## Distilled Model Sizes Available
| Model | Size | Parameters | VRAM (FP16) | VRAM (INT8) | Quality |
|-------|------|------------|-------------|-------------|---------|
| 600M | 2.46 GB | 600M | ~1.5GB | ~800MB | Good, understandable |
| 1.3B | 5.48 GB | 1.3B | ~3GB | ~1.5GB | Better accuracy, context |
**Quality Impact**: 1.3B has ~15-25% better BLEU scores vs 600M across language pairs.
## Backend Performance
| Backend | Speed vs Base | Memory Usage | Quality Loss |
|---------|---------------|--------------|--------------|
| CTranslate2 | 6-10x faster | 40-60% less | ~5% BLEU drop |
| Transformers | Baseline | High | None |
| Transformers + MPS (on Apple Silicon) | 2x faster | Medium | None |
**Metrics**:
- CTranslate2: 50-100+ tokens/sec
- Transformers: 10-30 tokens/sec
- Apple Silicon with MPS: Up to 2x faster than CTranslate2
## Quick Decision Matrix
**Choose 600M**: Limited resources, close to 0 lag
**Choose 1.3B**: Quality matters
**Choose Transformers**: On Apple Silicon

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@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
[project]
name = "whisperlivekit"
version = "0.2.9"
version = "0.2.10"
description = "Real-time speech-to-text with speaker diarization using Whisper"
readme = "README.md"
authors = [

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@@ -445,8 +445,8 @@ class AudioProcessor:
elif not lines:
lines = [Line(
speaker=1,
start=state.get("end_buffer", 0),
end=state.get("end_buffer", 0)
start=state.end_buffer,
end=state.end_buffer
)]
response = FrontData(

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@@ -345,13 +345,6 @@ function renderLinesWithBuffer(
}
let currentLineText = item.text || "";
if (item.translation) {
currentLineText += `<div class="label_translation">
<img src="/web/src/translate.svg" alt="Translation" width="12" height="12" />
<span>${item.translation}</span>
</div>`;
}
if (idx === lines.length - 1) {
if (!isFinalizing && item.speaker !== -2) {
@@ -385,6 +378,13 @@ function renderLinesWithBuffer(
}
}
}
if (item.translation) {
currentLineText += `<div class="label_translation">
<img src="/web/src/translate.svg" alt="Translation" width="12" height="12" />
<span>${item.translation}</span>
</div>`;
}
return currentLineText.trim().length > 0 || speakerLabel.length > 0
? `<p>${speakerLabel}<br/><div class='textcontent'>${currentLineText}</div></p>`