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arXiv · 1711.08600

Singing voice correction using canonical time warping

Yin-Jyun Luo·Ming-Tso Chen·Tai-Shih Chi·Li Su
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Abstract

Expressive singing voice correction is an appealing but challenging problem. A robust time-warping algorithm which synchronizes two singing recordings can provide a promising solution. We thereby propose to address the problem by canonical time warping (CTW) which aligns amateur singing recordings to professional ones. A new pitch contour is generated given the alignment information, and a pitch-corrected singing is synthesized back through the vocoder. The objective evaluation shows that CTW is robust against pitch-shifting and time-stretching effects, and the subjective test demonstrates that CTW prevails the other methods including DTW and the commercial auto-tuning software. Finally, we demonstrate the applicability of the proposed method in a practical, real-world scenario.

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Yin-Jyun Luo, Ming-Tso Chen, Tai-Shih Chi, Li Su. 2017-11-23. Singing voice correction using canonical time warping. https://arxiv.org/abs/1711.08600

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