[Bug 1620636] Re: Fails to pair with Bose QC35 headphones

[Peter Uithoven]

@ksoeteman

I'm afraid you can't use HiFi playback (A2DP) and the microphone at the
same  time on any playtform, since it's a general Bluetooth limitation:

Profile limitation – Bluetooth headsets are currently limited to using
one profile at a time. Those who read the Bluetooth Profiles section
above carefully will note that this presents a problem as the A2DP
profile supports stereo audio, but not microphone functionality, and the
HSP and HFP profiles support mics but are limited to low-quality mono
transmission. This renders modern Bluetooth headsets unusable for gaming
that also requires voice chat, for example, as the audio will come
through in low-quality mono rather than stereo. Likewise, while using
Skype or any other software that requires continuous headset
functionality, any music that is playing simultaneously will stream
through headset profile in low-quality mono and sound terrible as a
result.

From: http://theheadphonelist.com/wireless-fidelity-making-sense-
bluetooth-headphone-technology/

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Title:
  Fails to pair with Bose QC35 headphones

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