Google Home app is an amazing application that allows you to manage multiple home devices including Google Home and Chromecast devices on your Android smartphone, iPad, iPhone, and tablet. It allows you to add Chromecasts to Google speaker groups. In the past, grouping of Chromecasts that connect to TV into a speaker group was impossible. You could only group Chromecast Audio dongles and Cast-enabled speakers. All that has changed. Today, you can group Google speakers using Google Home app.

With Chromecasts, you can now get songs around your entire home with speaker groups. You can use Chromecasts to play music in sync across multiple rooms and devices. By adding compatible devices such as Google Home speakers, you can play the same song in sync across multiple devices. Google Home app now comes with a handy feature that supports the combination of multiple Google Cast-compatible devices for synchronous music streaming.

List of Google Cast-compatible Devices to Add to a Speaker Group

They include:

Google Home

Chromecasts

Google Home Mini

Chromecast Ultra

Google Home Max

Chromecast Audio

Google Home Hub and speakers with in-built Chromecasts.

Note that Chromecast (1st Gen) does not support this feature and you’ll need to enable the preview program in your Google Home app to get the feature.

How to Add Chromecasts using the Preview Program in Google Home App

Here are the steps to enable the preview program in your Google Home app:

Launch Google Home app on your phone or tablet. Find the Chromecast you would like to add to the preview program. Make sure all audio devices and your phone or tablet are connected to the same Wi-Fi network. Tap the Settings icon and then select the Preview Program. Follow the prompts to opt-in. Restart your Chromecast. Repeat the above steps for other Chromecasts in your home.

How to Create Speaker Groups in Google Home App

Below are the steps to create an audio group:

Open the “Google Home app” on your phone or tablet. Ensure that all audio/Chromecast devices and your phone or tablet are connected to the same Wi-Fi network. From Home icon, tap “Add +” and then select “Create speaker group”. Tap each device you want to add to the group. As soon as you add a device to the group, a “Check” icon will appear next to each device you select. Click the “NEXT” button. On the next page, enter a “Name for your group” and then “SAVE”.

How to Edit an Existing Speaker Group in Google Home App

Here are the steps to edit an existing speaker group in Google Home app:

Open the “Google Home app” on your phone or tablet. Ensure that all audio/Chromecast devices and your phone or tablet are connected to the same Wi-Fi network. From Home icon, select the speaker group you want to edit. Then, select Settings and Choose devices. Tap each device you want to add to the group. As soon as you select a device to the group, a “Check” icon will appear next to it. Click on SAVE.

By default, if you’re making edits to a group that is currently casting music, group playback will stop. Note that you’ll not be able to hear media on any audio device within the group. You have to say a voice command or return to the Cast-enabled app to start casting media again.

How to Change the Volume of All Audio Devices in a Speaker Group

Below are the steps to change the volume of all audio devices in a speaker group:

Open the “Google Home app” on your phone or tablet. Ensure that all audio/Chromecast devices and your phone or tablet are connected to the same Wi-Fi network. From Home icon, tap your “speaker group”. Move the volume clockwise to increase volume, or anticlockwise to decrease volume.

How to Adjust a Single Audio Device’s Volume in a Speaker Group

The steps are as follows:

Open the “Google Home app” on your phone or tablet. Ensure that all audio/Chromecast devices and your phone or tablet are connected to the same Wi-Fi network. From Home icon, tap your “speaker group”. Tap Sound setting which is above the volume wheel. Move each device’s volume slider to the right to increase the volume, or to the left to decrease the volume.

Alternatively, you can adjust an audio device’s volume from the Home icon. Just tap the device icon and then move the volume wheel clockwise to increase the volume, or anticlockwise to reduce the volume.

It is important to note that pressing your phone or tablet’s volume buttons (on the side of your phone or tablet) while in the Google Home app will not adjust, change or reduce the volume.

How to Delete an Existing Speaker Group in Google Home App:

The steps include:

Open the “Google Home app” on your phone or tablet. Ensure that all audio/Chromecast devices and your phone or tablet are connected to the same Wi-Fi network. From Home icon, select the speaker group you want to edit. Then, select Settings and Choose Delete Group. Click on DELETE

Note that if you delete a group that is currently casting music, group playback will stop automatically and you’ll no longer hear media on any audio device in the group. It is also important to note that speaker group creation is only available on a phone or tablet. Chrome browser does not support this feature, although you can still cast to a group from Chrome.