98 lines
3.1 KiB
Markdown
98 lines
3.1 KiB
Markdown
# TTS ONNX Inference Examples
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This guide provides examples for running TTS inference using `ExampleONNX.java`.
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## Installation
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This project uses [Maven](https://maven.apache.org/) for dependency management.
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### Prerequisites
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- Java 11 or higher
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- Maven 3.6 or higher
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### Install dependencies
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```bash
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mvn clean install
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```
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## Basic Usage
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### Example 1: Default Inference
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Run inference with default settings:
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```bash
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mvn exec:java
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```
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This will use:
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- Voice style: `assets/voice_styles/M1.json`
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- Text: "This morning, I took a walk in the park, and the sound of the birds and the breeze was so pleasant that I stopped for a long time just to listen."
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- Output directory: `results/`
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- Total steps: 5
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- Number of generations: 4
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### Example 2: Batch Inference
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Process multiple voice styles and texts at once:
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```bash
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mvn exec:java -Dexec.args="--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.'"
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```
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This will:
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- Generate speech for 2 different voice-text pairs
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- Use male voice (M1.json) for the first text
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- Use female voice (F1.json) for the second text
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- Process both samples in a single batch
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### Example 3: High Quality Inference
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Increase denoising steps for better quality:
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```bash
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mvn exec:java -Dexec.args="--total-step 10 --voice-style assets/voice_styles/M1.json --text 'Increasing the number of denoising steps improves the output fidelity and overall quality.'"
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```
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This will:
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- Use 10 denoising steps instead of the default 5
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- Produce higher quality output at the cost of slower inference
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**Note**: If your text contains apostrophes, use escaping or run the JAR directly:
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```bash
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java -jar target/tts-example.jar --total-step 10 --text "Text with apostrophe's here"
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```
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## Building a Fat JAR
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To create a standalone JAR with all dependencies:
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```bash
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mvn clean package
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```
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Then run it directly:
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```bash
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java -jar target/tts-example.jar
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```
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Or with arguments:
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```bash
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java -jar target/tts-example.jar --total-step 10 --text "Your custom text here"
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```
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## Available Arguments
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| Argument | Type | Default | Description |
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|----------|------|---------|-------------|
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| `--use-gpu` | flag | False | Use GPU for inference (default: CPU) |
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| `--onnx-dir` | str | `assets/onnx` | Path to ONNX model directory |
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| `--total-step` | int | 5 | Number of denoising steps (higher = better quality, slower) |
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| `--n-test` | int | 4 | Number of times to generate each sample |
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| `--voice-style` | str+ | `assets/voice_styles/M1.json` | Voice style file path(s) |
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| `--text` | str+ | (long default text) | Text(s) to synthesize |
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| `--save-dir` | str | `results` | Output directory |
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## Notes
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- **Batch Processing**: The number of `--voice-style` files must match the number of `--text` entries
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- **Quality vs Speed**: Higher `--total-step` values produce better quality but take longer
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- **GPU Support**: GPU mode is not supported yet
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- **Voice Styles**: Uses pre-extracted voice style JSON files for fast inference
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