Audio over Wireless

Other Hardware Audio
1

Hi there,

New to this whole Arduino thing but have a decent amount of electronics knowledge.

My ultimate goal is to create a set of wireless communication headsets/belt backs for integration with our wired communications system in our theatre. I know you can buy these off the shelf at a premium, however I thought I would give it a go at making a really simple set.

So basically, my first problem to solve is the best way to transmit audio over the Air. It needs to have a further range than Bluetooth (10metre range).

Does anyone have any ideas of add-ons etc. I might need?

Thanks

Mick

2

I think you have to spend some (or a lot) money on a commercial product.

3

I've had some success transmitting audio via NRF24L01+ radio modules, which will cover some distance if using the models with PA and LNA onboard. Technically though, any wireless module that can handle the data transmission speeds (16-20kB/s) would be capable. A one-to-one communication wouldn't be that difficult, but adding multiple devices adds more complexity of course.

My wav audio library is currently capable of recording audio, saving it to SD card, and transmitting it wirelessly to another device, although the features are not really documented or finalized yet, but more in a proof of concept state. Communication is only one-way right now, and I don't think it will come close to what you are looking for, but it can be found at GitHub - TMRh20/TMRpcm: Arduino library for asynchronous playback of PCM/WAV files direct from SD card. Arduino Uno,Nano,Mega etc supported if interested in how it works.