AI自动生成四声部和声，无需用户输入调性信息。
AI Harmonizer: Expanding Vocal Expression with a Generative Neurosymbolic Music AI System
- 结合生成式AI与符号音乐模型，自动识别旋律并生成和谐和声。
- 无需指定调性或音高，可直接将人声旋律转为丰富合唱效果。
- 适合音乐创作者、表演者及想快速实现和声的非专业用户。
人声和声器是帮助独唱者通过和谐声部丰富旋律的重要工具，现有形式包括商用踏板、软件及定制系统，但多数需用户手动设定调性或通过外接键盘选择音高，依赖一定乐理知识。本文提出的AI Harmonizer采用新方法，能自主生成符合音乐逻辑的四声部和声，无需用户提前提供和声信息。系统融合先进的音高检测与声部建模生成式AI技术，结合自训练的符号音乐模型，将任意人声旋律构建成丰富的合唱纹理。我们介绍了该方法，探讨了在演出与创作中的应用潜力，并展望实时部署的未来方向。目前系统为离线运行，但已释放至GitHub。此工作标志着向人工智能辅助人声表现与表达性音乐增强迈出重要一步。
原文摘要 · Abstract (English)
Vocals harmonizers are powerful tools to help solo vocalists enrich their melodies with harmonically supportive voices. These tools exist in various forms, from commercially available pedals and software to custom-built systems, each employing different methods to generate harmonies. Traditional harmonizers often require users to manually specify a key or tonal center, while others allow pitch selection via an external keyboard-both approaches demanding some degree of musical expertise. The AI Harmonizer introduces a novel approach by autonomously generating musically coherent four-part harmonies without requiring prior harmonic input from the user. By integrating state-of-the-art generative AI techniques for pitch detection and voice modeling with custom-trained symbolic music models, our system arranges any vocal melody into rich choral textures. In this paper, we present our methods, explore potential applications in performance and composition, and discuss future directions for real-time implementations. While our system currently operates offline, we believe it represents a significant step toward AI-assisted vocal performance and expressive musical augmentation. We release our implementation on GitHub.
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