Fedora Linux Support Community & Resources Center
Old 27th April 2012, 06:20 AM
matth45 Offline
Registered User
Join Date: Jun 2007
Posts: 172
Glitchy Bluetooth Audio

I just got a pair of Motorola S10-HD headphones from woot last week. They work great with my Android phone, but I haven't had a great experience with my Fedora laptop.

I wonder if anyone here can help troubleshoot. Here's what's going on:

I have an MSI StarKey bluetooth adapter on my laptop. I paired with the headphones without problems. The headphones pop up under the sounds settings, and I choose them under outputs. Under Hardware I switched them to the high-quality sound profile (Music vs. Telephone).

Sometimes they will play fine for extended periods of time. If I pause the music for a second and restart it, they will begin glitching -- cutting out the audio. Eventually the audio will get more and more distorted as well. And it seems that some buffer is getting overfilled, since if I press the pause button to pause the music, the music continues playing for a few seconds.

I don't think this is a signal strength issue. I am sitting right next to the adapter, and I see this from hcitool while they are glitching:

(the address of my headphones is 00:0D:FD:3F:43:9D)

$hcitool rssi 00:0D:FD:3F:43:9D
RSSI return value: 0
$ hcitool rssi 00:0D:FD:3F:43:9D
RSSI return value: -1
$ hcitool lq 00:0D:FD:3F:43:9D
Link quality: 255

I have tried killing and restarting pulseaudio, rhythmbox, and disabling/re-enabling the adapter to no avail. I noticed that if I leave the music paused long enough, I hear a click in the headphones and the light on the bluetooth adapter flashes at a slower rate. I think this means the connection goes idle. If I restart the music after this point, it starts immediately. If I don't wait for this, there is also a couple seconds delay before the music starts. This again makes me think that there is a buffer that's getting overfilled somewhere in the pulseaudio or bluetooth layers.

I'll try with a different adapter when I find one.

Thanks for your help.
Reply With Quote
Old 28th April 2012, 08:13 PM
matth45 Offline
Registered User
Join Date: Jun 2007
Posts: 172
Re: Glitchy Bluetooth Audio

I managed to try this with a second bluetooth adapter, and I get the same behavior. The new adapter is:

Bus 004 Device 002: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)

My guess is that this is a bug in pulseaudio. Does anyone know how to send audio to a bluetooth device without pulse?
Reply With Quote

audio, bluetooth, glitchy, pulseaudio, rhythmbox

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Bluetooth Audio with PulseAudio jtang613 Guides & Solutions (Not For Questions) 25 8th December 2009 05:34 AM
bluetooth audio (A2DP) for Linux piet85 Hardware & Laptops 2 6th December 2009 07:26 AM
Bluetooth audio problem in Fedora 11 hilbert24 Using Fedora 1 29th September 2009 08:40 PM
How do I route audio through embedded bluetooth ccook Using Fedora 0 8th March 2009 02:47 PM
glitchy pulse audio Sono Pazzo Using Fedora 7 11th January 2009 07:58 PM

Current GMT-time: 20:38 (Tuesday, 22-08-2017)

TopSubscribe to XML RSS for all Threads in all ForumsFedoraForumDotOrg Archive

All trademarks, and forum posts in this site are property of their respective owner(s).
FedoraForum.org is privately owned and is not directly sponsored by the Fedora Project or Red Hat, Inc.

Privacy Policy | Term of Use | Posting Guidelines | Archive | Contact Us | Founding Members

Powered by vBulletin® Copyright ©2000 - 2012, vBulletin Solutions, Inc.

FedoraForum is Powered by RedHat