ai-natsume-tts

Shiki Natsume (Shiki Natsume) — GPT-SoVITS Voice Model

中文说明

Model Overview

A Japanese TTS (Text-to-Speech) voice model based on the GPT-SoVITS v2 ProPlus architecture, designed to generate speech for the game character Shiki Natsume (Shiki Natsume).

Character Background

Note: This model is intended for personal learning, research, and non-commercial use only. Do not use the model or its outputs for any commercial purposes or unauthorized distribution.

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Model Files

This repository contains the following model weights and reference audio files:

Reference Audio Transcription

Casual tone (casual.ogg):

「ワタシ一人だけじゃなく、周りのみんなに助けてもらいながら考えて……こういうお店にしました。」 (Translation: "Not just by myself, but with everyone around me helping me think... I decided to open this kind of shop.")

Romantic tone (romantic.ogg):

「ワタシだって、好きな人と一緒にいたいと思うし。こうして触れ合ってると……幸せで。」 (Translation: "I also want to be with the person I like. When we're like this, touching... I feel so happy.")

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Usage

Training

Use GPT-SoVITS for model training. The project provides comprehensive documentation for the training process.

Inference

Use GPT-SoVITS_minimal_inference for voice synthesis. This lightweight inference tool provides a simple API for generating speech with the model weights.

For detailed usage instructions, refer to the respective project documentation linked above.

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Training Details

Training Framework

• Architecture: GPT-SoVITS v2 ProPlus
• Training Code: GPT-SoVITS

Training Data

• Source: Extracted from the visual novel Café Stella and the Reapers' Butterflies
• Training Tool: Dataset Maker for Galgames
• Data Volume: Approximately 140 minutes of high-quality speech
• Format: Ogg Vorbis

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Limitations and Risks

Technical Limitations

• Language: The model is optimized for Japanese only; performance on other languages may be poor
• Emotion Range: Currently supports only casual and romantic emotional styles
• Audio Length: Single inference is recommended to be under 30 seconds; longer text may result in quality degradation

Usage Risks

• Copyright: The model is trained on game voice data and should only be used for personal learning and non-commercial research
• Content Safety: Do not use the model to generate inappropriate content or for fraudulent purposes
• Voice Mimicry: The model-generated voice may resemble the original voice actor; please respect the rights of the original creators and voice actors

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License

This Model

• License: Non-commercial use only (Other)
• Prohibited: Any commercial use, paid distribution, or training other commercial models
• Allowed: Personal learning, research, non-commercial sharing

Third-Party Components

This model relies on the following open-source projects: