A further question. I have a XperiaX which is comparing it to Jolla1 quite loud. Anyway for some reasons the output of Pure Maps (and also WhoGo Maps) is quite soft-spoken.

I have searched for config files where I can raise the volume but haven't found one. In the config files of Pure Maps and OSM Scout Server there is no option. And for Mimic I haven't found config files in /home/nemo. Any chance to raise the Volume?