Lower the volume of videos and music when using Google Assistant

To make it easier to talk and listen to Google Assistant while casting content, your Assistant can automatically lower the volume of videos and music that you’re casting to TVs or speakers. This feature is on by default.

How it works

The volume of your TV or speaker will lower when you say, 'Hey Google', and stay at that level while you talk to your Assistant. When you've finished, the volume of the TV or speaker will rise to the original volume setting.

Prevent your Assistant from lowering the volume

Unsupported functionality

At the moment, this feature won’t work when you cast content in the following ways:
  • If you cast music on a group of cast devices.
  • If you started to cast content on a TV or speaker using a mobile phone and not your voice.
  • When you cast content on an Android TV device with fixed volume (e.g. Nexus player).
  • When you cast content on a Chromecast Built-In speaker or TV, or Android TV that runs with Chromecast firmware version older than 1.25. Find out how to check your firmware version.
  • For TV shows and movies when playback is done at 5.1 surround sound.

Note: For Android TVs that run with firmware version older than 1.27, when this feature is on, you won’t be able to change the volume of the TV using your speaker or display ('Hey Google, set volume to 50% on <device name>'). To use voice commands, turn off the feature using the steps above. 

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