-----Original Message----- From: linux-bluetooth-owner@xxxxxxxxxxxxxxx [mailto:linux-bluetooth-owner@xxxxxxxxxxxxxxx] On Behalf Of Douglas Lopes Pereira Sent: 19 June, 2009 19:02 To: linux-bluetooth@xxxxxxxxxxxxxxx Subject: Audio failures on bluetooth headset Hi guys, Here I am to share my problems again. Please, read if you have time. I have bluez 4.41 installed on my 2.6.30 system and I´m trying to play a .wav file using aplay on my bluetooth headset but the sound I hear on the headset has failures, noises. Also, I'm trying to record my voice on the same headset, but the result is terrible. Following are the steps I'm taking: - My bluetooth dongle is recognized as (hciconfig -a): hci0: Type: USB BD Address: 00:10:60:30:1A:2D ACL MTU: 384:8 SCO MTU: 64:8 UP RUNNING PSCAN RX bytes:10886 acl:31 sco:0 events:395 errors:0 TX bytes:1961 acl:26 sco:0 commands:139 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: 'debian-0' Class: 0x4a0204 Service Classes: Networking, Capturing, Telephony Device Class: Phone, Cellular HCI Ver: 2.0 (0x3) HCI Rev: 0x7a6 LMP Ver: 2.0 (0x3) LMP Subver: 0x7a6 Manufacturer: Cambridge Silicon Radio (10) - I started the simple-agent: Agent registered - Then I create the device using: dbus-send --system --type=method_call --print-reply --dest=org.bluez /org/bluez/2705/hci0 org.bluez.Adapter.CreateDevice string:00:08:1B:05:0A:0F - Next step is to connect the headset: dbus-send --system --type=method_call --print-reply --dest=org.bluez /org/bluez/2705/hci0/dev_00_08_1B_05_0A_0F org.bluez.Headset.Connect - Now I need to configure ~/.asoundrc with my bluetooth device: pcm.bluetooth { type bluetooth device "00:08:1B:05:0A:0F" profile "auto" } > Did you try the .asoundrc example in /etc/alsa? - At this point I have my setup ready to play and record audio (at least I should have). Then I start aplay: aplay -D bluetooth -f S16_LE myaudio.wav > Did you try aplay -D plug:bluetooth -f S16_LE myaudio.wav? It works, but the audio I hear has a lot of noise and choppiness. I read on bluez wiki that choppiness is expected, but is this the scenario where it should happen? - I also tryied arecord -D bluetooth -f S16_LE result.wav I was unable to understand the audio from result.wav. Hundreds of following messages were found on syslog: Jun 19 13:03:16 debian kernel: hci_scodata_packet: hci0 SCO packet for unknown connection handle 39169 Jun 19 13:03:16 debian kernel: hci_scodata_packet: hci0 SCO packet for unknown connection handle 144 Jun 19 13:03:16 debian kernel: hci_scodata_packet: hci0 SCO packet for unknown connection handle 89 Jun 19 13:03:16 debian kernel: hci_scodata_packet: hci0 SCO packet for unknown connection handle 5888 Jun 19 13:03:17 debian kernel: hci_scodata_packet: hci0 SCO packet for unknown connection handle 32513 Jun 19 13:03:17 debian kernel: hci_scodata_packet: hci0 SCO packet for unknown connection handle 19969 Jun 19 13:03:17 debian kernel: hci_scodata_packet: hci0 SCO packet for unknown connection handle 65025 Am I doing something wrong? Can anybody point me a way to fix this problem? Thanks in advance. Douglas -- -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
