Headset audio capture failing when using Bluez's ALSA plugin

Hello, I recently installed a USB bluetooth dongle with the intent of using my Jabra BT500 headset in VOIP applications. I've followed the Bluez audio service wiki with some degree of success; audio playback on my headset works flawlessly with a variety of players. Audio recording through the headset's mic, on the other hand, consistently stops capturing audio after what appears to be ~250ms into the recording session.

I've tested this using both arecord and Skype's test call feature. Running arecord yields

$ arecord -D bluetooth -f S16_LE

Signed 16 bit Little Endian, Rate 8000 Hz, Mono
Aborted by signal Interrupt...
(manually stopped after several seconds)

The output file boo.wav is exactly 250ms long, and appears to contain the very beginning of my recording. Skype similarly fails on the call test (audio playback is fine, but the capture test fails to grab any audio). In both cases, the Jabra makes the "call end" tone when I finish my recording test. Also while recording, I get the following system message several times:

hci_scodata_packet: hci0 SCO packet for unknown connection handle 45

Any thoughts on what the problem could be? Thanks for your help.

Chip McArtor

Software versions:
bluez-libs 3.24
bluez-utils 3.24
alsa-lib 1.0.14a
linux 2.6.23 i686 SMP

BT adapter info:

hci0: Type: USB

        BD Address: 00:15:83:BE:9C:58 ACL MTU: 384:8 SCO MTU: 64:8
        UP RUNNING PSCAN ISCAN
        RX bytes:1984896 acl:74 sco:38817 events:196 errors:0
        TX bytes:1970090 acl:57 sco:38591 commands:67 errors:0
        Features: 0xff 0xff 0x8f 0xfe 0x9b 0xf9 0x00 0x80
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
        Link policy: RSWITCH HOLD SNIFF PARK
        Link mode: SLAVE ACCEPT
        Name: 'BlueZ (0)'
        Class: 0x080100
        Service Classes: Capturing
        Device Class: Computer, Uncategorized
        HCI Ver: 2.0 (0x3) HCI Rev: 0x7a6 LMP Ver: 2.0 (0x3) LMP Subver:

0x7a6
Manufacturer: Cambridge Silicon Radio (10)

~/.asoundrc:

pcm.bluetooth {
type bluetooth
device 00:16:8F:08:8F:80
profile "voice"
}

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Chip

A possible fix was just committed to bluez-utils cvs.

Brad

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Excellent, I tried the bluez-utils cvs, and now both playback and recording seem to be working. I'm not at home right now, so I couldn't do an actual voice recording, but the headset mic seems to record the noise of humming computer fans perfectly. XD

Thanks for your help!
Chip

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