I’m currently looking to develop an open source app that can help somebody. I’m currently out of ideas, so I’d like to heard if from you guys.
Sorry if it seems to lazy to ask for ideas like that, I just thought that I could do it since the result will be a free app.
You can do this in VLC, though it’s not very practical. VLC’s equalizer has a preamp slider, it’s just not great if you want to change it all the time.