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Terrible Bluetooth A2DP audio quality

16520 Views 7 Replies Latest reply: Jun 21, 2013 5:31 AM by DavidMorton RSS
bartek_kam Level 1 Level 1 (0 points)
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May 28, 2012 11:23 AM

Hello!

 

I've recently purchased Logitech Wireless Speaker Adapter. It's a piece of hardware that allows you to transmit sound to speakers via Bluetooth using the A2DP technology.

 

I'm experience a great deal of problems while connecting to my MacBook Pro. The sound is crackling all the time. Sometimes it even stops for a second.

I know that the device itself isn't a problem because it works perfectly fine with my HTC Sensation smartphone.

I've tried to change the A2DP codec 'bitrate' as shown in this advice: http://danwarne.com/fix-bluetooth-a2dp-audio-quality-mac-os/ but it's not helping. No matter what I choose, the sound is unbearable.

 

Do you know any solution to this problem? Is hardware a problem or maybe Apple's bluetooth drivers?

MacBook Pro (15-inch Mid 2009), Mac OS X (10.7.4), Logitech Wireless Speaker Adapter
  • russee Level 1 Level 1 (5 points)
    Currently Being Moderated
    Jun 14, 2012 8:30 PM (in response to bartek_kam)

    Hey,

     

    Bluetooth audio has always been a bit precarious with macs, I was having unbearable crackling with my Jaybird Freedom headset when paired with my macbook pro (though when paired to my iphone it was completely fine). The solution you posted just worked for me when I turned it up to about 45 (I've seeen a range anywhere between 40 and 58), so maybe fiddle around a bit with those numbers, remember to turn off and back on the bluetooth device for it to take effect (restarting my mac wasn't necessary). If that fails, I remember using terminal to create an A2DP connection before it was integrated into OSX (way back in either tiger or leopard). It vaguely resembled something like this:

     

    http://linkopia.blogspot.sg/2009/05/a2dp-stereo-bluetooth-on-mac-os-tiger_28.htm l

     

    It was so long ago I can't remember the exact specifics or which instructions I followed, but the terminal command in the instructions in the link above seem awfully familiar. I haven't tried those instructions in Lion (again, cuz the previous solution worked) but thought it might get you on the right track for an alternative. Best of luck.

  • mmmax Level 1 Level 1 (0 points)
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    Aug 16, 2012 7:46 PM (in response to russee)

    I found 53 worked well (OSX 10.8 MacBook Air 2011) on my brand new Jaybird JF3 Freedoms:

    defaults write com.apple.BluetoothAudioAgent "Apple Bitpool Min (editable)" 53

     

    Higher than that and it would not work at all. The original default, 2, was so awful as to be unusable.

  • Seamaster73 Level 1 Level 1 (5 points)
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    Sep 13, 2012 10:22 AM (in response to mmmax)

    Thanks for this - fixed the crackling/clipping on the JBL Jembes I stream to from my 2012 Air.

  • molecule-eye Level 1 Level 1 (0 points)
    Currently Being Moderated
    Oct 18, 2012 5:30 AM (in response to mmmax)

    mmmax wrote:

     

    I found 53 worked well (OSX 10.8 MacBook Air 2011) on my brand new Jaybird JF3 Freedoms:

    defaults write com.apple.BluetoothAudioAgent "Apple Bitpool Min (editable)" 53

     

    Higher than that and it would not work at all. The original default, 2, was so awful as to be unusable.

    I had set mine to 50 but it didn't work. I've been testing just for a few minutes with 53 and it seems to be working. I'm running Mountain Lion on an Early 2011 MBP 15".

  • Whezzel Level 1 Level 1 (0 points)
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    Jan 25, 2013 12:46 PM (in response to bartek_kam)

    dont mean to bring up an old topic but i did what mmmax suggested seting the bitrate to 53. i have the same logitech adapter as the op and it sounds so much better now. thanks

  • check6ix Level 1 Level 1 (0 points)
    Currently Being Moderated
    May 2, 2013 2:23 PM (in response to mmmax)

    Working great now after setting to 53 on my MBP running Lion. Headphones are Jaybird BlueBudsX. Thanks!

  • DavidMorton Level 1 Level 1 (0 points)
    Currently Being Moderated
    Jun 21, 2013 5:31 AM (in response to check6ix)

    Excellent find! Thanks! I had completely given up on routing audio to my bluetooth headset, and then I found this! It actually sounds.... good!

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