1. Craig Barnes craig@craigbarnes.org.uk http://craigbarnes.org.uk/
Hello
Craig Barnes

2. Bluetooth audio fun with Linux
Audio in Linux
Bluetooth in Linux
Bluetooth Audio Devices
Maemo
With PulseAudio
Without PulseAudio
Conclusions

3. Audio in Linux Sound driver systems OSS Alsa Higher Level Systems
Pulse Audio
Jack
Esound
Gstreamer
aRTs
Phonon

4. BlueZ http://www.bluez.org/
Bluetooth in Linux
BlueZ

5. BlueZ http://www.bluez.org/ http://www.archive.org/ → wiki.bluez.org
Bluetooth in Linux
BlueZ
→ wiki.bluez.org

6. Bluetooth Audio Devices Headsets Speakers / Headphones Used with
Mobile phones
Internet Tablets
PCs
Audio Profiles
'voice' – mono duplex phone quality
'hifi' – Stereo high quality

7. Maemo device support Nokia N810 Used for audio communications
Only provides voice profile
Will not work if configured using alsa configuration

8. PulseAudio I have tested using Ubuntu and Fedora
Both work well for stereo or voice audio.
Both have Implemented PulseAudio
PulseAudio has A2DP streaming apparently thanks to João Paulo and GSoC.

9. Non PulseAudio :(

10. Non PulseAudio (2) Going Direct to Alsa pcm.stereo { type bluetooth
profile "hifi" }
ctl.stereo {
pcm.!default pcm.stereo
See
For the full story

11. What have we learned Bluetooth Audio in Linux still needs some work
PulseAudio works the best at the moment, but not for all applications.
Sound systems support is still an issue.
Audio in Linux is a very vast Subject.
Why did the BlueZ wiki dissapear?

12. Any Questions? Will post a link to this presentation to the list.
fin
Any Questions?
Will post a link to this presentation to the list.