Have you bought a pair of bluetooth stereo headphones and paired them up to your Mac?
Have you noticed that they sound crappy and tinny?
There’s a reason!
Turns out that the default minimum quality in OS X is pretty low. I guess the OS and the bluetooth device negotiate this, and if the device doesn’t provide anything (because it’s say a cheap bluetooth adaptor you got from china), it defaults to the minimum. The minimum is a bad thing mkay?
So let’s change it.
If you have the developer tools installed, you can use Bluetooth Explorer to change the minimum bit pool by going into the special options item in the utilities menu. But there’s an easier way.
Simply open up the terminal and paste this in there:
defaults write com.apple.BluetoothAudioAgent “Apple Bitpool Min (editable)” 58
Once that’s done, restart your machine
58 might be a little high, and from what I’ve read, people have had success from 40 up. But 58 is working great for me.
Now get back to enjoying your tunes in a wireless fashion.
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user:~ User$ defaults write com.apple.BluetoothAudioAgent “Apple Bitpool Min (editable)” 58 -bash: syntax error near unexpected token `(‘ user:~ User$ defaults write com.apple.BluetoothAudioAgent 582010-08-19 11:26:57.090 defaults[11296:903] Rep argument is not a dictionary Defaults have not been changed.
tryd with sudo to, but still error for that. any help? still I have boor sound on my MW600 (like 32 or 64bit stereo), but SE XPERIA X10 sound wery good.
I have MAC OSX 10.6.4 (macbook pro 15” | 64bit)
wow found It!:D here is my solution
Heres is the solution: Edit that with a plist Editor (http://www.nightproductions.net/prefsetter.html visit to download). Open that… There’s a file called “com.apple.BluetoothAudioAgent” I recomend to search “BluetoothAudioAgent”
I raised the “Apple Bitpool Min” to 50, that did the trick.
And this is wery good quality for me:)
Welcoming from Estonia
, Martin N.
I used MW600 anyway… I found that, 58 is little hard for Sony Ericsson MW600, that “eat’s” MW600 Battery wery quickly 50 is same quality, (for ears
I think)
defaults write com.apple.BluetoothAudioAgent Apple\ Bitpool\ Min\ \(editable\) 50
will do the trick…
gracias. funciona perfect!!! very nice for my macbook pro 13″
This is great. But once i changed the value of quality to 53, Bluetooth tethering no longer works. In systemprefs / network. It says i’m not connected to the Bluetooth – PAN network. Does anybody know the oroginal settings for the value? Is is 40 or something?
Thank you so much, I have a pair of Sennheiser MM450 and I was looking for a bluetooth quality improvement on my MacBook Pro since months!
P.S.: I used the code posted by Kirpi ’cause the one in the guide returned a bash error.
I found after some fiddling that 44 gave me the best sound on Philips SHB9000 headphones
try this from a terminal
defaults write com.apple.BluetoothAudioAgent “Apple Bitpool Min (editable)” 44
Zdravim .. pomohlo mi to ale nastavil som to tak ze “Apple Bitpool Min” na 60 a max na 80 a teraz to znie naozaj vyborne, predtym tam bolo pocut praskanie
Set it to 44. Works like a charme w/ the Nokia BH-905. Thanks for this tutorial!
I love you. I’m just gonna say it out loud, I don’t care who hears it. I LOVE YOU.
Those of you getting syntax errors, note that you can’t just copy/paste the text from the article. The quotation marks have been replaced with “smart” quotes, which the terminal doesn’t know how to translate into regular quotes. copy/paste what’s in there, then manually delete the quotes and re-type them.
You are a gift from god! Thank you very much for your help, I went from punching a wall to crying tears of joy.
I’d advise using an Editor like Martin suggests rather than the command line. I tried it with the command line and it stopped working altogether. After opening with the plist editor i noticed that the value was set as being a String rather than an Integer. After i changed that, it worked fine again. Also, the best way to start it working is to open bluetooth control panel, click MW600 in the list, and then use the little gear icon to choose “Use as Audio Device (Stereo)”. Other methods of turning it on are less reliable in my experience.
I just wanted to chime in with a Thank you for everyone that posted. I went with Martin and Eldroid’s suggestion of editing the PList for the Bluetooth Audio Agent. Worked like a charm.
I tried using a Jawbone Jambox on my Macbook Pro, and it sounded like I was playing an AM radio. I tried it on my iphone and it was fine. I thought I was having a failure in my bluetooth chip, but it turns out the chip was just set too low. Bad Apple
I tried it at 50, and it works great.
Wow thank you very very much! I arrived here after returning a bluetooth logitech wireless speaker I bought to stream music from my iMac to my HiFi gear. It didn’t sound perfect with the mac but it sounded perfect with the iPhone. So I searched the web and I saw this thread. I bought another logitech unit after set bluetooth value to 50 via: defaults write com.apple.BluetoothAudioAgent Apple\ Bitpool\ Min\ \(editable\) 50 and it works very well. The sound is fantastic, as with the iPhone, and it’s great to have access to 30.000 songs far from the computer. Mine is now 12 meters away from reciever and I have no drops in the signal. Thank You! A real alternative to airport express to me.