Hello,
when you play music while navigating and there is an announcement from Google Maps for example, the volume from the music (Poweramp) is turned down for the duration of the announcement and up again after it finishes. I like this behavior because I can then understand the announcement easier.
This is however done through suddenly jumping the volume level up/down. It would be much more pleasing for the ears, if the volume would be slightly faded up and down like Spotify already does.
Thanks!