A free app for Android, by Sumabi.

Voice Changer – Audio Editor is a free app that lets you change the pitch, the volume, the tone, and the speed of your voice. You can also add sound effects, such as a laugh, a scream, or a shout. You can use it to make fun of your friends, or just to surprise them.

It is easy to use and has a friendly user interface. You can record a new voice, apply changes to it, and save it to a new file. You can change the pitch, the volume, the tone, and the speed of your voice.

You can add sound effects, such as a laugh, a scream, or a shout.