A voice changer is a device or software that alters the pitch, tone, or characteristics of a person's voice. These tools can be used for various purposes, including:
1. **Entertainment**: To create funny or unique voices in videos, games, or prank calls.
2. **Privacy**: To disguise one's voice when making phone calls or participating in online activities.
3. **Creative Projects**: For voice acting, podcasts, or audio dramas where different