The demo of TANDEM-STRAIGHT tools is shown as follows (YouKu):
Step1: The song is singed by the original singer.
The original song:
Step2: The fundamental frequency of original song is extracted by the TANDEM-STRAIGHT tools.
Step3: We read the lyric (Speech).
The speech:
Step4: The fundamental frequency of speech is extracted by the TANDEM-STRAIGHT tools.
Step5: The fundamental frequency of speech is changed to sing.
The speech changed to singing:
Lastly, we show a related demo to easy understand the proposed works.
The demo of TANDEM-STRAIGHT tools is shown in YouTube: