Sonos Beam Gen2 increases Sony Bravia TV volume by 2 levels instead of 1

Forum|Forum|10 months ago
November 21, 2025
14 replies
751 views

Why does the Sonos Beam Gen2 increases Sony Bravia TV volume by 2 levels instead of 1?

How can I fix this? Please help.

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Best answer by AudioJack

I reached out to Sonos Support and got this detailed explanation of the behavior:

This happens because Sony Bravia sends loudness commands in increments of 2 when HDMI-CEC is used with Sonos Beam.

HDMI-CEC sends “increase volume” as repeated commands rather than as a number.

HDMI-CEC does not allow the TV to send “Set volume to X%.”
Instead, it only has two commands:

- Increase volume
- Decrease volume

Each button on the TV remote sends a signal pulse, and the receiving device (Sonos) interprets the pulse as one or more loudness steps.

Sony Bravia TVs are known to send two CEC loudness commands for each button, not just one.

This is intentional:

Sony TVs do not have separate volume values via HDMI-CEC.

They send a “burst” of two commands because Sony assumes that the receiving sound system uses a coarser decibel scale.

One press = command to increase volume by TWO steps.

This is why the volume jumps 2 steps

Show previous replies

Triticale

Prodigy II

@AudioJack, diving through several posts in different forums, it seems it’s a common situation with different brands of TVs and sound bars. There’s no answer that convinced me, because someone says that it’s due the different scales between both devices, but I’ve seen that in my case both have a scale from 0 to 100. I suppose it’s something that should happen due the huge number of different manufacturers, but I don’t see that as a real issue because I don’t feel that the volume scale is now less accurate than before.

I suppose that engineers developing this systems could answer us with the real reason, but till this happen my advise is forget it because it doesn’t affect to the sound performing.

ClaraWard234

Lyricist III

It happens because the Sony Bravia sends volume commands in steps of 2 when using HDMI-CEC with Sonos Beam Gen2. You can try turning off "Auto Volume" or "Bravia Sync" settings, reboot both devices, or switch to IR control if available. This usually fixes the double-step volume issue.

A

AudioJackAuthorAnswer

Trending Lyricist I

I reached out to Sonos Support and got this detailed explanation of the behavior:

This happens because Sony Bravia sends loudness commands in increments of 2 when HDMI-CEC is used with Sonos Beam.

HDMI-CEC sends “increase volume” as repeated commands rather than as a number.

HDMI-CEC does not allow the TV to send “Set volume to X%.”
Instead, it only has two commands:

- Increase volume
- Decrease volume

Each button on the TV remote sends a signal pulse, and the receiving device (Sonos) interprets the pulse as one or more loudness steps.

Sony Bravia TVs are known to send two CEC loudness commands for each button, not just one.

This is intentional:

Sony TVs do not have separate volume values via HDMI-CEC.

They send a “burst” of two commands because Sony assumes that the receiving sound system uses a coarser decibel scale.

One press = command to increase volume by TWO steps.

This is why the volume jumps 2 steps

controlav

Lead Maestro

Wow that is a remarkable technical reply you got there from Support, and covers it well.

So glad to see a response other than “factory reset your device”.

Author of the leading independent Sonos apps for Android, MacOS, iOS, Windows and Xbox.

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