How to change voice in realtime in android application?

Question

Android

There was a task for an application that should receive a person’s voice in real time through a microphone and convert it to a rougher, bassist, etc. according to preset presets, and then output it to headphones. Do not write and output, but output immediately after receiving with a minimum delay. What are the implementation tips, maybe there are libraries for working with sound in real time. It is important that it should work adequately on the phone.

Answer 1

banned on google?
https://filmora.wondershare.com/audio-editor/best-...

Answer 2

https://androiddev.apptractor.ru/android-dev-podca...
the delay in android, although it has become less, but I remember it is still too big
https://android-developers.googleblog.com/2021/03/...
What am I talking about, all of them are just wrappers over the system SDK. And if in android HAL is not sharpened for realtime, then how not to be perverted with a regular sound will not work. There is a lot of pain from the developers in the podcast.