> > 4. Is there anyone could explain sco_sink, sco_source? If there are ALSA
> > code related to it, could you tell me the link that explain ?
> … Apparently some system don't even bother
> exporting this audio path to the software stack because it is only
> active while on call, if this is your case then it means we cannot
> control the audio routing in software and we probably should do
> nothing (e.g. set sco_sink/sco_source to "none" and when HFP/HSP is
> active set card profile to 'Off'), but note that this type of
> configuration has many limitation for instance a system like that
> cannot do navigation or voice commands using SCO.
Hi Luiz,
Would you kindly share more information on a system that does not export SCO audio path to the software stack? Is it a typical design for handset?
If I have a BT headset that can support both A2DP and HSP profile, and I want to hear music in A2DP and make a phone call in HSP profile on such a system, is it possible?
If it’s possible, how can pulseaudio set BT headset to A2DP profile for music and change to ‘Off’ profile on call? Can PA know when a call begins or ends on such a system, in order to change BT profile?
Great Thanks
Mengdong
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