It would be cool just to see a voice filter option when creating stories. It would just be some buttons on the bottom of the screen when you would start recording voice. You would also choose when it starts the 3-second countdown. To select a filter, you would just tap on a button. There could be:

1. Distortion




2. High-Pitched




3. Low-Pitched




4. Echo




5. Underwater

There could be more but this is all I can think of.