About bidirectional voice communication on nrf51822

[Chester]

Hello

I have a project about voice communication. Trying to do bidirectional voice communication, is there any possible to work on nrf51822

It means whatever via Bluetooth or RF is fine.

I've already checked old question, it seems that low energy Bluetooth not support for A2DP.

Now i have 3 ways want to try 1.using RF&modified gazll library(but i have no source code, is there anyway to get it?) 2.Write a all new one RF portal 3.change chips, and give up everything , I've done before

which one could be better?

[Ole Morten]

If you can do with relatively low data rate (300-400 kbps), Gazell should be fine. You can do bidirectional data transfer out-of-the box, so no modifications should be needed.

If you want to write an RF protocol from scratch, you may have use in taking a look at this.

[Chester]

Thanks for your reply,

For our application, is to make a remote which could have bi-direction audio communication.After compression, its size could be under 300kbps.

For now, the problem is how to realize it via gazell. It mean how to get the data from dongle(host) to device. For my guessing , there are 2 ways to do it.

(1)Put the data in ack packet,so that host side could send the data. (2)Switch RF mode, remoter could be host&device,so did by dongle. (3)Your suggestion

For this kind of application. Distributor can't support us. So i'm really appreciate for your help.

[Ole Morten]

Using ACK payloads is the definitely easiest way, so I'd recommend you to go with this.