I have an Onkyo AV Receiver (model TX-SR707). I would like to redirect audio from my system such that it will output through the receiver - without having to hook up any wires.
Similar to how I can cast from my phone (or from Chrome on the laptop) to the Chromecast device hooked into the receiver, what combination of hardware and software would I need to be able to achieve this at a system level from my laptop (Lenovo Thinkpad t440p)?
Do I need a full-blown server hooked up to the receiver using the method described here - How do I set up live audio streams to a DLNA compliant device? - or is there a more lightweight hardware device I can use?
In an ideal world, I imagine going into Sounds Settings and selecting the receiver (or some intermediary device) as the output.
I'd guess the laptop would be in a range of 5 to 10 metres from the receiver.
There are several different hardware and software solutions that can serve a wireless audio signal from our Ubuntu box to an audio receiver.
Wireless audio transmitter or Bluetooth
This is the oldest available technique working through an own wireless audio data transfer signal either by 2.4 GHz signal, or more recently through Bluetooth. For both techniques there are plenty of budget solutions coming with sender or receiver modules ready to plug in to our existing systems. In case our sender is already equipped with a Bluetooth module we will only need a single additional BT-module on the receiver side. This will be the most lightweight or least expensive solution.
Audio streaming through our local wireless network
To be able to stream audio to any audio receiver we need a device capable of connecting the audio receiver to our wireless network. It may be best to look for devices we already own to keep costs low. The receiveing device could be anything from:
Receiving the audio streams through the wireless network
Depending on the hardware we chose we again have a choice of streaming methods depending on what the receiver supports.