[PLUG] Bluetooth A2DP and audio streaming fidelity

Tomas tomas.kuchta.lists at gmail.com
Fri Jun 30 09:09:21 UTC 2017


Expressing audio quality opinion is pretty dangerous thing.

In my experience - bluetooth music audio quality is pretty bad no
matter what you use it with - be it Linux, OSX, iOS, MSWin .... I find
bluetooth OK for spoken word

I use cable instead you will hear clear difference with decent audio
source. I find BT quite tonaly compressed (muffled) compares to cable
connection even in the noisy car environment, not to mention with Hi-Fi 
and average speakers. Bluetooth quality is especially bad and
observable with good quality BT headphones with cable input. 

Alternatively, one can get cheap USB audio dongle + RPi --> connect it
to audio and stream to it. It will work over much longer distance and
it will sound superior to bluetooth.

Here are some basic BT measurement and comparison:
http://www.sereneaudio.com/blog/how-good-is-bluetooth-audio-at-its-best

Just my opinion,
Tomas

On Thu, 2017-06-29 at 09:14 -0700, VY wrote:
> Dear All
> 
> I am using Bluetooth to stream music (mostly MP3 but can be other
> codecs)
> from my Linux host to a bluetooth audio adapter that is connected to
> my
> amplifier/receiver.   (the bluetooth adapter is RCA wired to my
> receiver).
> 
> 
> I am wondering if there is anything I can do on my Linux end of
> improve
> audio fidelity?
> I am not complaining that the audio quality is bad coming out of my
> speakers but just curious if I can further improve the state of the
> audio.
> 
> Any tips much appreciated!
> 
> thanks
> 
> -v
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