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Hi Francesco,
A2DP is the bluetooth profile for high quality audio (music playback). SCO is a bluetooth transport protocol used by the HFP/HSP bluetooth profiles for bi-directionnal low-latency audio. HFP/HSP are mainly used during telephone calls/VOIP sessions.
On AGL, your device should switch between A2DP and HFP/HSP when you make a telephone call. When the call ends, it should go back into A2DP for media playback.
I tested this to work correctly on Guppy on a M3ULCB board. Depending on your distro, this should either be handled by bluez-alsa or by a pulseaudio instance. You could try to look in that direction.
Best regards,
Théo
De : automotive-discussions-bounces@xxxxxxxxxxxxxxxxxxxxxxxxx <automotive-discussions-bounces@xxxxxxxxxxxxxxxxxxxxxxxxx> de la part de Francesco
CESAREO (Kineton) <francesco.cesareo@xxxxxxxxxx>
Envoyé : mercredi 10 juillet 2019 12:52 À : automotive-discussions@xxxxxxxxxxxxxxxxxxxxxxxxx Objet : Re: [H3ULCB + KF] Bluetooth audio problem with Guppy 7.0.3 Hi all,
analysing the problem, I can say that audio playback works if the protocol is "a2dp" while it doesn't work with "sco" protocol.
Can it be a configuration problem or is there an other problem?
Thank you.
Francesco
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