コエカタマリン

[“Doraemon the Movie: Nobita’s Earth Symphony” digital supplement as a gift for visitors]
This is an app where you can enjoy Doraemon's secret tool "Koe Catamarine" which also appeared in the movie.

When you speak into your smartphone, the voices come out in clumps,
In melody mode, the letters are arranged on the staff according to the pitch of the voice.
Please listen to various voices and have fun.