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README.md

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-license: cc-by-nc-4.0
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+license: cc-by-nc-4.0
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+# YingMusic-Singer: Zero-shot Singing Voice Synthesis and Editing with Annotation-free Melody Guidance
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+github:[YingMusic-Singer](https://github.com/GiantAILab/YingMusic-Singer)
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+## Short Intro
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+YingMusic-Singer is a unified framework for Zero-shot Singing Voice Synthesis (SVS) and Editing, driven by Annotation-free Melody Guidance. Addressing the scalability challenges of real-world applications, our system eliminates the reliance on costly phoneme-level alignment and manual melody annotations. It enables arbitrary lyrics to be synthesized or edited with any reference melody in a zero-shot manner.
+Our approach leverages a Diffusion Transformer (DiT) based generative model, incorporating a pre-trained melody extraction module to derive MIDI information directly from reference audio. By introducing a structured guidance mechanism and employing Flow-GRPO reinforcement learning, we achieve superior pronunciation clarity, melodic accuracy, and musicality without requiring fine-grained alignment.