BC127 audio talkback feature issue

Hello,

I want to use BC127 as audio source and as well as listen from remote device like walkie talkie. My configuration as follows,

  1. I have enabled APTx LL for talkback feature using CODEC=6 ON command
  2. PROFILES = 0 0 0 1 1 1 1 0 0 0 0 0
  3. updated firmware to get cVc and APTx licence
  4. connect remote bluetooth headset using open xxxxx A2DP command (LINK 10 CONNECTED A2DP xxxxx SUSPENDED APTX_LL SRC 0
    LINK 11 CONNECTED AVRCP xxxxxx STOPPED)
  5. music 10 play to stream audio

Issue is that I can only send audio from bc127 but on bc127 I could not hear anything from bluetooth headset. If I set sync profile for a2dp and pair to mobile device I can hear music. So hardware seem to ok for connection.

please help me out for configure bc 127 as audio talkback feature.

Thanks.

Regards,
Deep

Thank you.

Regards,
Deep

Deep,

Stupid question but this unit is licensed to use APTx and CVC?

Regards

Matt

Hello Matt,

As I have mentoned

, and using license command I can see APTx and CVC license updated.

Talkback feature with my current configuration I found when stream audio it reboot remote device issue.
using hfp profile turn on, I can use talkback feature on mono channel. This required two bc127 modules.

out application needs one bc 127 and bluetooth headset with a2dp capable but talkback feature not working on bluetooth headset. For timebeing I will try hfp profile for audio walkie talkie feature application.

Thank you.

Regards,
Deep

Hello Matt,

I found solution for talkback using AGHFP profile for bluetooth headset.

I just have to give command to dummy number like “call 12 incoming 123456” and on bluetooth headset push answer button. so “AGHFP xxxx IDLE WB” become “AGHFP xxxxx ACTIVE WB”.

Thank you.

Regards,
Deep