Browsing by Author "Su, Li"

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SINGING VOICE CORRECTION USING CANONICAL TIME WARPING
(2018-01-01)
Luo, Yin-Jyun
;
Chen, Ming-Tso
;
Chi, Tai-Shih
;
Su, Li
;
電機工程學系
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.