Supertonic 2

csharp/README.md

@@ -4,6 +4,8 @@ This guide provides examples for running TTS inference using `ExampleONNX.cs`.
 
 ## 📰 Update News
 
+**2026.01.06** - 🎉 **Supertonic 2** released with multilingual support! Now supports English (`en`), Korean (`ko`), Spanish (`es`), Portuguese (`pt`), and French (`fr`). [Demo](https://huggingface.co/spaces/Supertone/supertonic-2) | [Models](https://huggingface.co/Supertone/supertonic-2)
+
 **2025.12.10** - Added [6 new voice styles](https://huggingface.co/Supertone/supertonic/tree/b10dbaf18b316159be75b34d24f740008fddd381) (M3, M4, M5, F3, F4, F5). See [Voices](https://supertone-inc.github.io/supertonic-py/voices/) for details
 
 **2025.12.08** - Optimized ONNX models via [OnnxSlim](https://github.com/inisis/OnnxSlim) now available on [Hugging Face Models](https://huggingface.co/Supertone/supertonic)
@@ -45,15 +47,16 @@ Process multiple voice styles and texts at once:
 ```bash
 dotnet run -- \
   --voice-style assets/voice_styles/M1.json,assets/voice_styles/F1.json \
-  --text "The sun sets behind the mountains, painting the sky in shades of pink and orange.|The weather is beautiful and sunny outside. A gentle breeze makes the air feel fresh and pleasant." \
+  --text "The sun sets behind the mountains, painting the sky in shades of pink and orange.|오늘 아침에 공원을 산책했는데, 새소리와 바람 소리가 너무 좋아서 한참을 멈춰 서서 들었어요." \
+  --lang en,ko \
   --batch
 ```
 
 This will:
 - Use `--batch` flag to enable batch processing mode
 - Generate speech for 2 different voice-text pairs
-- Use male voice style (M1.json) for the first text
-- Use female voice style (F1.json) for the second text
+- Use male voice style (M1.json) for the first English text
+- Use female voice style (F1.json) for the second Korean text
 - Process both samples in a single batch (automatic text chunking disabled)
 
 ### Example 3: High Quality Inference
@@ -92,15 +95,18 @@ This will:
 | `--use-gpu` | flag | False | Use GPU for inference (not supported yet) |
 | `--onnx-dir` | str | `assets/onnx` | Path to ONNX model directory |
 | `--total-step` | int | 5 | Number of denoising steps (higher = better quality, slower) |
+| `--speed` | float | 1.05 | Speech speed factor (higher = faster, lower = slower) |
 | `--n-test` | int | 4 | Number of times to generate each sample |
 | `--voice-style` | str+ | `assets/voice_styles/M1.json` | Voice style file path(s) (comma-separated) |
 | `--text` | str+ | (long default text) | Text(s) to synthesize (pipe-separated: `|`) |
+| `--lang` | str+ | `en` | Language(s) for text(s): `en`, `ko`, `es`, `pt`, `fr` (comma-separated) |
 | `--save-dir` | str | `results` | Output directory |
 | `--batch` | flag | False | Enable batch mode (disables automatic text chunking) |
 
 ## Notes
 
 - **Batch Processing**: The number of `--voice-style` files must match the number of `--text` entries
+- **Multilingual Support**: Use `--lang` to specify language(s). Available: `en` (English), `ko` (Korean), `es` (Spanish), `pt` (Portuguese), `fr` (French)
 - **Long-Form Inference**: Without `--batch` flag, long texts are automatically chunked and combined into a single audio file with natural pauses
 - **Quality vs Speed**: Higher `--total-step` values produce better quality but take longer
 - **GPU Support**: GPU mode is not supported yet