Investigation of Effect on Naturalness of Vibrato of Singing Voice by Difference of Vibrato Waveform

Abstract

In this paper, we conducted a subjective experiment in order to investigate if the naturalness of vibrato of singing voice is affected by difference of vibrato waveform. In this subjective experiment, listeners judged the naturalness of vibrato of synthetic sounds with vibratos generated by human vibrato waveform and cosine waveform. It can be clarified that the naturalness of vibrato is not affected by difference of the vibrato waveform.