This app can change voice to men, women, babies, old men, even birds and pigs.
It can also control the speed of speech.

Guess who I am , The voice-changing file can be sent to line, WeChat, messenger

Hold down the microphone
Icon to start recording
When released, will play

Adjust the slider to change.
Speed of audio playback
#- Up pitch
b - Down pitch

Choose the bottom of the character.
can change the sound.
Save and load audio files.