14.18 Update Causes Surround to be Too Loud on Arc

I also had this issue but 2 nights ago I thought my sound was off again so went into settings and truplay had gone as in it was not setup.

I know it was there and switched on I had run it 4 times trying to get the sound right 

OK so I reran it and shock horror the surrounds were OK set on 0 rather than the -4 I was using also treble wasn't grating anymore, I had treble set at -6 now it's also on 0 

I have no idea what changed other than truplay wiping itself from my system but now it is much better 

I am still wary of it and won't auto update anymore but it's sounding better than 14.12 though not back to 14.10 glory days 

Wish I knew wtf happened so I can recreate it if any problems reoccur but I am happier than I was

Hope your system gets the same gremlin that fixed mine....

That is really strange. Could you tell me what the greyed out Surround speaker distance is set to for you? The audio has been great since the 14.18 update with Trueplay. Besides the surrounds being much louder than they should be and improper reading of distance.

@slongChez 

It's set at more than 10 feet

Got it, thanks for letting me know.

This is still not solved, is it? When playing video games the surrounds are way too loud making people standing behind me sound like they’re right on my back. I was stupid enough to re-tune my system with TruePlay after getting a rug because I thought it’d make a difference and here we are, worse sound. Prior to that I’d consider it as good as it gets. 

Why don’t you just adjust the ‘TV Level’ slider control in the HT room ‘surround audio’ settings - it’s the reason that (user) customisation control is there, to let you shift the audio level away from (or towards) the surrounds? 

Hey Ken, thanks for the answer and the suggestion. I understand why you would suggest that but it’s still annoying to update a system only for it to show different behaviour after the update although the content isn’t supposed to change surround functionality with true play. It feels like Sonos is shifting working out the details of true play to the end users and if I didn’t want a “plug and play” solution, I wouldn’t have bought Sonos.

I can only add that the tools in the Sonos App are there to provide a level of manual customisation by a user, for example my ‘old’ ears now prefer a little more treble than the ‘default’ setting, so I adjust some of my speakers treble-slider up a couple of notches, even after Trueplay tuning a room.

Some HT surround speakers can be placed a few feet away from the listener, or of course much further away and Trueplay tuning will do its level best to balance the speakers in their environment at a chosen spot and given the room acoustics and speaker distance you may go onto find the surround level it selects in the environment does not suit your own taste, so you would adjust the TV Level slider accordingly… I have several locations in my HT room, where I (or others) will choose to sit, so in my case I will make some manual adjustments to try to fit the setup to suit all those present in the room (it’s often a compromise), but that in some instances may mean shifting the audio away from the rear speakers. Regardless of ‘plug n play’ these tools are there to be used for our different room acoustics, listening positions & personal preference etc. Trueplay is v/good, but I doubt it will ever be a case of "one size fits all” - there are too many variables for that. 

So I would just use the TV Level slider control - and with some compromise you might get to the point where you can simply "set and forget" that setting.

My only wish here, is that I would personally like to see a TV Level slider control for both the left and right HT audio channels (a left/right HT balance control)… which I have put forward in the past to Sonos as a feature request.