If for some reason you want to change your voice on a sound recording, you can use the following online service.
- Go to the site https://voicechanger.io/
- select Upload audio to upload the finished audio file.
- after downloading, in the window that opens, select the sound you need(alien, monster, etc.)
- Wait about a minute for the system to process the voice.
- Listen to the finished recording.
- Tap the three vertical dots to the right of the recording and select Download to download the audio to your device.
The service also provides the ability to voice text and allows you to use the microphone directly on the site to make a recording.