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Avid Contributor I
October 21, 2020
Answered

Volume normalisation on Sonos?

I just noticed that my Sonos system adjusts the volume automatically between loud and quiet songs. I haven’t noticed this before. It is extremely annoying, and especially noticeable when I play an album where the songs run into each other. The system also inserts a little gap between the songs. ALSO extremely annoying. I tried playing the same music files on another player, and there is no difference in the volume and no gap between the songs on that player, so it’s not the files that are ripped that way, it is the Sonos system that plays around with the volume. Like I said, I’ve never noticed it before. What has happened? Where do I turn it off?

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Corry P
Corry PAnswer
Sonos Staff
February 11, 2021

Hi @captainknut 

Sorry for the delay.

Sonos does not apply volume normalisation to files from your Sonos Music Library, but Sonos does alter the playback level using the ITUNNORM or REPLAYGAIN_TRACKGAIN tags in the embedded metadata for the file. 

I would say that normalisation was applied to the tracks by the CD ripping software (if you even ripped the tracks) on a track-by-track basis. This may be called “peak search" or similar in the options, if not "normalisation”. If this is the case, other (non-Sonos) players may read the recorded metadata (labelled ITUNNORM when ripped by iTunes) and apply it, thus rendering the tracks to the same volume and making it appear that Sonos is varying the volume when it isn’t. iTunes uses a different normalisation algorithm so the effect is different (not varied) when playing there.

I recommend re-ripping the albums affected (or just one, to test), making sure that normalisation is not activated in the ripping software. If you don’t see the option, it may be an idea to use different software - maybe the community can suggest some?

If you can find a program that will strip the ITUNNORM tag from your tracks, that will also suffice, and presumably be much quicker and easier - maybe someone here can suggest software?

 

Edited: technical clarification

"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein

27 replies

October 22, 2020

“Playback/Offline mode” and “Normalize volume” and both in the Spotify settings. The cog in the top right of the screen.


I’m not playing from Spotify. I’m playing my own music files from my NAS.

In that case, I’d like to know how to turn it  ON - what version of the software are you using?

Trending Lyricist I
October 22, 2020

Sorry for the confusion. As controlav said above, there are many threads of people asking for Sonos to provide a normalisation feature. Our setup is playing locally/diagnosed Spotify through Sonos speakers. We are having no success getting this Spotify feature working with the Sonos speakers but it works fine when playing Spotify through UE Boom speakers. It works for both local and streamed songs. Sounds like you need Sonos to add the feature. Sorry

Avid Contributor III
October 22, 2020

So, to clarify:

This is NOT a question about Spotify, this is a question about Sonos.

I’m playing my own music from my own local NAS. The only player involved is the Sonos Controller. I can find nothing in the Sonos Controller to turn on or, more importantly, turn OFF volume normalisation.

Imagine how annoying when you’re listening to an album where songs run into each other, let’s say The Beatles’ Abbey Road (or any progressive rock album ever made), and having the volume jump up and down between the seamlessly interconnected songs.

 

i think this is something that i too have noticed happening a lot more recently.

along with an overall increase in the volume of music.

i have had my amp set at a particular volume for years, and now, music via my nas > connect sounds louder than it used to and so have had to adjust my amp levels, and wonder if this is related to this problem.

if there is an under the covers configurable option that can toggle such an function then i would happily switch it off.

m.

 

Avid Contributor I
October 22, 2020

Sounds like you need Sonos to add the feature.

Actually, what I want Sonos to do is take it AWAY. :smile:  The volume has suddenly started normalising by itself, and I DON’T want it to.

October 22, 2020

 

Imagine how annoying when you’re listening to an album where songs run into each other, let’s say The Beatles’ Abbey Road (or any progressive rock album ever made), and having the volume jump up and down between the seamlessly interconnected songs.

But does this not mean that normalisation is not happening?!

Avid Contributor I
October 22, 2020

 

Imagine how annoying when you’re listening to an album where songs run into each other, let’s say The Beatles’ Abbey Road (or any progressive rock album ever made), and having the volume jump up and down between the seamlessly interconnected songs.

But does this not mean that normalisation is not happening?!

No, it means that normalisation IS happening.

Normalisation means that the volume of a quieter song is increased so that the difference in volume between it and a louder song is evened out. This might be good to have if you’re riding in the car, for example, where a quieter song wouldn’t be heard over the traffic noise, or if you’re streaming a playlist consisting of songs from different albums that may be mastered very differently.

At home, however, you generally (at least I) want to listen to the music as it was recorded and meant to be listened to. There is a reason a quiet song is quiet, after all. And, of course, this is ESPECIALLY the case when you are listening to songs from one and the same album. There is absolutely no need for normalisation when you’re listening to songs from a single album in a quiet location, like in your home. Then you want to listen to the music as it was intended to be played. Having the volume jump up and down between songs without you asking for it is EXTREMELY annoying.

Avid Contributor I
October 22, 2020

“Playback/Offline mode” and “Normalize volume” and both in the Spotify settings. The cog in the top right of the screen.


I’m not playing from Spotify. I’m playing my own music files from my NAS.

In that case, I’d like to know how to turn it  ON - what version of the software are you using?

S1 11.2.3 57381090

Lyricist II
January 8, 2021

I’m new to Sonos and I’vejust noticed this myself - playing from my own music, a quiet tracks blends into a louder one but there’s a sudden drop in volume which is not supposed to happen. The tracks have been normalised ie quiet tracks made louder, loud tracks made quieter. Whilst desirable if playing different tracks from different sources, absolutely not wanted when playng an ablum of continuous music. This feature needs to be turn of an on-able. Is it? 

Corry P
Corry PAnswer
Sonos Staff
February 11, 2021

Hi @captainknut 

Sorry for the delay.

Sonos does not apply volume normalisation to files from your Sonos Music Library, but Sonos does alter the playback level using the ITUNNORM or REPLAYGAIN_TRACKGAIN tags in the embedded metadata for the file. 

I would say that normalisation was applied to the tracks by the CD ripping software (if you even ripped the tracks) on a track-by-track basis. This may be called “peak search" or similar in the options, if not "normalisation”. If this is the case, other (non-Sonos) players may read the recorded metadata (labelled ITUNNORM when ripped by iTunes) and apply it, thus rendering the tracks to the same volume and making it appear that Sonos is varying the volume when it isn’t. iTunes uses a different normalisation algorithm so the effect is different (not varied) when playing there.

I recommend re-ripping the albums affected (or just one, to test), making sure that normalisation is not activated in the ripping software. If you don’t see the option, it may be an idea to use different software - maybe the community can suggest some?

If you can find a program that will strip the ITUNNORM tag from your tracks, that will also suffice, and presumably be much quicker and easier - maybe someone here can suggest software?

 

Edited: technical clarification

"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein
Avid Contributor I
February 11, 2021

Yes, you are correct - it is the Sonos app that reads and applies the ITUNNORM tag from iTunes. I tried deleting the tag from a sample album, and the normalisation disappeared. So I then proceeded to remove the tag from my entire music collection in one humongous batch job (~40,000 songs).

But I am reading straight from my local collection to Sonos, no other players are involved, so it is demonstrably so that it is the Sonos app that reads and applies the tag. And since that is the case - surely it should be possible to incorporate a setting in the Sonos app for the user to choose whether he/she wants the tag applied or not?