I want to build an app where people can download an audio file.
The goal il to create something like a remix of a song, and users could download their remix.
I found some exemples where the record is done with microphone, but the result is disgusting. I saw several app like Groovepad: https://play.google.com/store/apps/details?id=com.easybrain.make.music&hl=fr who does what I want, but I have no idea how they did.
If someone has an idea…
Thanks by advance !