[Bug 1649144] [NEW] Bluetooth audio quality bad

[Tuomas Pylkkö]

Public bug reported:

Listening to music using a2dp compatible bt headphones, the audio is
bad. Let me explain. If I plug in a pare of headphones with a 3.5 mm
stereo plug and compare it to the bluetooth audio, I cannot tell the
difference in most devices. I know that a2dp is done with lossy
compression, so in theory the audio quality suffers. However, the
difference is minimal, something that you can either barely notice, or
at times other links in the audio-to-ear chain are way worse masking the
quality difference from compression. I have tested this on Android,
Debian, Ubuntu etc. and I have to admit that most of the time there
appears to be no difference to me.

However, on Ubuntu touch (arale OTA-14) there is a difference that any
one can notice immediately. The bluetooth audio is really poor, sounds
as if it were distoreted and compressed or sample rate lowered or
something. Not poor enough to make it unusable but poor enough that you
notice it right away.

I have no idea what package is causing this, but I suspect that it has
something to do with either audio mixer or bluetooth. But everything
seems to be OK. AFAIK the audio settings are as I would expect.

** Affects: bluez (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1649144

Title:
  Bluetooth audio quality bad

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