nrf5340_audio:How to hear sound in the right headset?

Question

Hi, 
 I'm running some transceiver tests to look at extended broadcast and ISO transfer modes. I am using nrf5340_audio_dk and ncs V2.6.0 to run nrf5340_audio application. I have saw this in here . First I can hear in my left ear. Then I press the reset key while holding down the 1 key according to the instructions. The log shows that the current receiving end is right device. 
 After testing, I could determine that the receiver of headset had indeed changed from BIG1 to BIG2. But the truth is I can still only hear in my left ear. What else do you need to do if you want to hear the sound in the right ear of the headset? 
 Best wishes， 
 Liuzong.

ace.johnny · Accepted Answer

Yes, this is correct. The CS47L63 codec is a mono device, and while it can transceive multiple channels, it is hardwired to only the Left output on the Audio DK's TRS headphone connector. It is possible, however, to mix multiple channels into a single mono signal so that they can all be heard in the Left output simultaneously, but this requires editing the /src/drivers/cs47l63_reg_conf.h file which contains the register settings that configure the CS47L63 during operation.

Hieu · Answer

Hi Liuzong, 
 Yes, that result should explain things. This is how I reason it:

Sound file 
 Config 
 Output 
 Hear in L ear 
 Hear in R ear

If the file has sound on the currently configured channel, there will be output 
 As long as there is an output, there will be sound 
 There cannot be sound

L&R 
 L 
 Yes 
 Yes 
 No

L&R 
 R 
 Yes 
 Yes 
 No

L-only 
 L 
 Yes 
 Yes 
 No

L-only 
 R 
 No 
 No 
 No

Best regards, 
 Hieu

nrf5340_audio:How to hear sound in the right headset?

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