Sorry if this was covered but couldn't find anything on it.
I have my speed volume set at 4.
When at hwy speed, external speakers, sound is perfect at first, loud, clear, then as song from bluetooth continues it drops in volume a bit without change in speed. Then it goes back up pretty soon. When speed volume was on 0, did not happen. But volume not as high as when on. When on 4 I have to lower volume with toggle.
I have not noticed this at slower speeds.
I use Amazon music app.
Anyone experience this? Or have idea why?

 

I found this on the web:-

"Amazon music normalizes audio to an integrated -13 LUFS, and like Tidal, it only turns audio down once it crosses that loudness, it does not turn it up if it's quieter than it. Amazon music uses loudness normalization as its default listening setting, but it can be disabled by listeners."

 

To me it is saying if too loud it will lower volume, but not the other way.
Mine goes back and forth. Not sure if I read that correctly. Thanks for posting.

 

does it happen with other source than amazon, like spotify or the regular music app?

 

Thanks!
I've only had the Amazon app since I got the bike.
Don't use radio in the mountains.
On my Saturday ride I'll try speed volume on 3 instead of 4, and move joy stick up to increase volume a bit.🤞