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CIS bidirectional communication / nrf5340 audio

Adarsh_1

Hello Team,

NCS: V2.2.0

I am using three nrf5340 audio dk to test bidirectional ble audio application. I have added CONFIG_WALKIE_TALKIE_DEMO=Y in the prj.conf file.

When I was testing CIS bidirectional communication, I found that the audio is streamed only to one nrf5340 audio DK (configured as left). The gateway does not communicate with the nrf5340 Audio DK which was configured to output right channel data.  The LED1 on the gateway and Audio DK (configured as left) lights up, but the LED1 on the Audio DK (configured as right) does not light up and stream audio. 

Document states that "Only one headset can be connected when using the bidirectional mode or the walkie-talkie demo." 

What does the "headset" means here? A TWS or a mono stream supported headphone?

Can't I stream bidirectional audio using a common TWS configuration using both Audio DK configured as Left and Right? 

Thanks in advance.

Best regards,

Adarsh

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    Hello Adarash,

    What does the "headset" means here? A TWS or a mono stream supported headphone?

    One headset refers to 'one headset device', i.e one nRF5340 Audio DK.
    The Walkie Talkie demo sends mono audio, and is only looking to connect to a single headset device, so the 'right headset' will not get a connection when the gateway is running the walkie talkie example.

    Can't I stream bidirectional audio using a common TWS configuration using both Audio DK configured as Left and Right? 

    You can, but this is not the functionality of the Walkie Talkie demo, and so it will require some changes to the application code to make happen.
    We actually have an open PR to add bidirectional TWS functionality to the nrf5340_audio application, but this PR will require a newer controller version that likely will be made available sometime next week.
    You could use this PR as a reference for implementing dual bidirectional in the current example, if you would not like to wait until it is merged.

    Best regards,
    Karl

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    Hello Adarash,

    What does the "headset" means here? A TWS or a mono stream supported headphone?

    One headset refers to 'one headset device', i.e one nRF5340 Audio DK.
    The Walkie Talkie demo sends mono audio, and is only looking to connect to a single headset device, so the 'right headset' will not get a connection when the gateway is running the walkie talkie example.

    Can't I stream bidirectional audio using a common TWS configuration using both Audio DK configured as Left and Right? 

    You can, but this is not the functionality of the Walkie Talkie demo, and so it will require some changes to the application code to make happen.
    We actually have an open PR to add bidirectional TWS functionality to the nrf5340_audio application, but this PR will require a newer controller version that likely will be made available sometime next week.
    You could use this PR as a reference for implementing dual bidirectional in the current example, if you would not like to wait until it is merged.

    Best regards,
    Karl

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