I can be watching tennis or a movie and the volume is fine at '3' or '4' (out of '100'). Other times it needs to be at '33' or '34'. One time, the volume was at '0' (no, not muted) but sound was still clearly coming out.
Anyone else having this problem? I notice it as well when we stream content via Apple TV (aka it's not just a 'cable' problem).
The only way I can 'fix' this problem is by opening the app every time it happens (which is frankly too often) and zeroing out the volume by turning it all the way down and then slowly, one-by-one, using the TV remote to increase it to the desired level.
I definitely had thoughts about buying additional Sonos One's to make the system true surround-sound but if I have to constantly reset/restart the volume each time I use it, it kinda turns me off from the idea of owning anything Sonos.
PS I haven't noticed it quite as much with listening to Spotify, but that might be because it's still so new to me. Oh, and our TV is putting out audio with the optical audio-to-HDMI adapter and cable (TV model is Vizio E701iA3) if that helps at all.
Best answer by Airgetlam
In the Audio settings for the TV, I have it set to "Volume Control: External, Digital Audio Out: Bitstream: Analog Audio out: Fixed.
I don't seem to have the issues you're experiencing. Sure, there's a slight volume difference when switching from TV to streaming, but it isn't a constant amount, nor is it substantial.