I recently ran into some very strange sounding audio when trying to use pulseaudio and bluez4 together with a bluetooth handsfree device. I noticed that doing a list-modules/list-sinks in pacmd showed that my handsfree SCO audio device was set to 2 channel 44.1khz audio, which is not correct. So I modified bluetooth-discover to set the information correctly for SCO/HFP devices. I also noticed that the sample format was being set as Unsigned 8-bit, but all the documentation I can find for SCO audio specifies S16_LE as the appropriate sample format. So I changed bluetooth-device to support this change as well. I am working on an embedded platform for most of my testing, and made these changes against the 0.9.13 tree. However these patches are against the current git master branch. This is my first time emailing in a patch, so please let me know if I need to do anything differently. As I comment in the first patch, I am not certain if setting 44.1khz is correct for A2DP devices in all cases. Another observation I made, but did not address, is that if HFP mode is disabled in audio.conf for bluez4, bluez will never create a Headset device on DBUS, and the current bluetooth-discover module will not see it. So currently, in order to use a bluetooth handsfree device with pulse, you must have HFP mode enabled. It is unclear to me who the current maintainer of the bluetooth plugin is, but I would be interested in assisting in whatever way I can to get bluetooth source support working. -Steve -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-Changed-discover-module-to-set-channel-and-rate.patch Type: text/x-patch Size: 2823 bytes Desc: not available URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20081226/5fc7762d/attachment.bin> -------------- next part -------------- A non-text attachment was scrubbed... Name: 0002-Changed-device-code-to-allow-S16_LE-sample-format-fo.patch Type: text/x-patch Size: 804 bytes Desc: not available URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20081226/5fc7762d/attachment-0001.bin>
