Audio streaming

RE: Audio streaming

Kyrre Aalerud — Tue, 03 Aug 2021 08:39:33 GMT

So, now that we are in the future and it is possible. Is the demo examples ready?
It is possible now, but can we do it without inventing our own earbuds and proprietary transport?

RE: Audio streaming

sherif — Tue, 22 Dec 2020 01:39:34 GMT

yes it is possible with the new ble standard 5.2

RE: Audio streaming

Einar Thorsrud — Thu, 16 May 2019 06:46:27 GMT

Hi,

Normal Bluetooth headphones does not support audio over BLE, so unless you are also making the headphones, it is out of the question.

If you are also making the headphones, then you could device a application specific protocol. You will probably meet some challenges, though. For instance, normal BLE GAP connections is not well suited for streaming real-time data, since there will be re-transmission (like TCP in the IP world). If you are streaming audio, particularly if you need low latency, then you probably would like to ignore packet losses instead of doing re-transmissions (like UDP in the IP world). This is not straightforward and Nordic does not provide any method for doing so. However, if you don't care much about delays and don't need to stream a consecutive audio stream for a long time,t hen there are options. For instance, we transmit voice commands with the SmartRemote reference design.

RE: Audio streaming

po1yblank — Wed, 15 May 2019 23:14:02 GMT

So you want to say that there is no suitable way to stream audio using ble? I'm fully understanding that ble is not for such kind of things, but I'm interested in technologies for performing this task.

RE: Audio streaming

awneil — Wed, 15 May 2019 22:53:44 GMT

It's all just data as far as the radio is concerned!

BLE = Bluetooth Low Energy: the focus is on low energy - which means not high speed and not large volumes of data.

RE: Audio streaming

awneil — Wed, 15 May 2019 22:51:47 GMT

It supports the BLE parts of BT 5.

RE: Audio streaming

po1yblank — Wed, 15 May 2019 22:47:06 GMT

If not, it's not a big problem i think. I'm not going to stream any high quality audio, I only need to know if there any sound :)

RE: Audio streaming

po1yblank — Wed, 15 May 2019 22:43:49 GMT

Yeah but btw i'm asking for way to do it because nrf52840 supports Bluetooth 5. Or not?? I'm confused a bit

RE: Audio streaming

awneil — Wed, 15 May 2019 22:36:12 GMT

This is not really what BLE is for