Stream any audio from Android phone to multi-room speakers?

Internet of Things Asked on January 5, 2022

Is it possible to stream any audio from an Android phone to a multi-room speaker setup?

I would like to invest in some multi-room speakers, but I do not use any streaming services. My media files, both audio and video, are scattered around locally on my hard drive and phone. I do not have a central media library. I watch a lot of videos on my phone’s YouTube app.

IKEA’s SYMFONISK speakers seem like a good set of entry-level devices to set up a multi-room audio system. However, I’m unsure about how to actually stream music to them. To my research I can only use streaming services or a media library as input.

I also own a Bluetooth headset that I can connect to my phone and it will play any auto, whether it is music, video or YouTube content. But to my current understanding the Sonos App is required for IKEA’s speakers and I can only stream audio that I explicitly selected within the app. The speakers do not simply ‘forward’ all audio of my phone, correct?

Long story short: Is there any solution for a cave man like me, who does not rely on streaming services? My phone would be most important for me, so don’t bother about my Linux laptop too much.

To my current understanding, I would be better of with a Bluetooth speaker instead of Wifi speakers. But Bluetooth speakers cannot be used as a multi-room setup and connectivity is always a big issue.

2 Answers

Today I am going to answer my own question: This is not intended to be an advertisement of any sort, but eventually I ended up buying a pair of Ultimate Ears BOOM 3 speakers. They are portable Bluetooth speakers, but have support for multi-room audio.

There is a PartyUp mode to connect up to 150 speakers and broadcast the same music to all of them. You cannot, however, play different music in each room, unless you pair multiple sources. But for me, at least, these speakers cover all use cases that I had, when I posted my initial question back in January.

In this setup, using Bluetooth, I can play audio from any app on my Android phone and broadcast it to multiple speakers. There is no need for additional apps or streaming services.

Answered by user1438038 on January 5, 2022

You can create multi speaker groups with Google Assistant devices (Google Home, Google Nest mini, Google Nest Hub...) and you can "cast" the audio to these groups directly from your phone.

The app you use to play the audio needs to support casting, but nearly all do since the actual support is provided by the Google Play Services library and it's just a case of calling a couple of APIs to add support.

Answered by hardillb on January 5, 2022

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