Bluetooth Audio
Version 4 (mihanson, 03/03/2011 12:33 pm)
| 1 | 3 | mihanson | h3. Bluetooth Audio |
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| 2 | 1 | ||
| 3 | 1 | You will need two things: |
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| 4 | 1 | # Bluetooth dongle (i.e. USB type) or integrated Bluetooth on your system |
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| 5 | 1 | # Bluetooth audio device (Speakers, headphones, etc.) |
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| 6 | 1 | ||
| 7 | 1 | Plug in your Bluetooth dongle |
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| 8 | 1 | Install _bluez_ |
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| 9 | 1 | <pre>$ pacman -Sy bluez</pre> |
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| 10 | 3 | mihanson | Ensure your dongle is showing _UP RUNNING_. |
| 11 | 1 | <pre>$ hciconfig -a |
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| 12 | 1 | ||
| 13 | 1 | hci0: Type: BR/EDR Bus: USB |
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| 14 | 1 | BD Address: 00:0A:94:02:9C:8C ACL MTU: 310:10 SCO MTU: 64:8 |
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| 15 | 1 | UP RUNNING PSCAN |
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| 16 | 1 | RX bytes:1074400 acl:20 sco:0 events:153362 errors:0 |
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| 17 | 1 | TX bytes:88752435 acl:319268 sco:0 commands:25 errors:0 |
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| 18 | 1 | Features: 0xff 0xff 0x8f 0xfe 0x9b 0xf9 0x00 0x80 |
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| 19 | 1 | Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 |
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| 20 | 1 | Link policy: RSWITCH HOLD SNIFF PARK |
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| 21 | 1 | Link mode: SLAVE ACCEPT |
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| 22 | 1 | Name: 'zotac-0' |
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| 23 | 1 | Class: 0x480104 |
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| 24 | 1 | Service Classes: Capturing, Telephony |
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| 25 | 1 | Device Class: Computer, Desktop workstation |
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| 26 | 1 | HCI Version: 1.1 (0x1) Revision: 0xc5c |
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| 27 | 1 | LMP Version: 1.1 (0x1) Subversion: 0xc5c |
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| 28 | 1 | Manufacturer: Cambridge Silicon Radio (10)</pre> |
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| 29 | 2 | mihanson | If not _UP_ |
| 30 | 2 | mihanson | <pre>$ hciconfig hci0 up</pre> |
| 31 | 1 | Place your Bluetooth audio device in pairing mode, then scan for it and make a note of the MAC address. |
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| 32 | 1 | <pre>$ hcitool scan</pre> |
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| 33 | 1 | Use bluez-simple-agent to pair your audio device to your dongle. |
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| 34 | 1 | <pre>$ bluez-simple-agent hci0 <MAC Address></pre> |
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| 35 | 1 | Enter your audio device's PIN number when prompted. |
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| 36 | 1 | If you do not have an /etc/asound.conf, create one with the following information. If you already have that file, append the following to the end. Substitute the correct MAC Address. |
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| 37 | 1 | <pre>#/etc/asound.conf |
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| 38 | 1 | ||
| 39 | 1 | pcm.btheadset { |
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| 40 | 1 | type plug |
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| 41 | 1 | slave { |
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| 42 | 1 | pcm { |
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| 43 | 1 | type bluetooth |
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| 44 | 1 | device <MAC Address> |
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| 45 | 1 | profile "auto" |
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| 46 | 1 | } |
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| 47 | 1 | } |
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| 48 | 1 | ||
| 49 | 1 | hint { |
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| 50 | 1 | show on |
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| 51 | 1 | description "Bluetooth headset audio output device" |
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| 52 | 1 | } |
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| 53 | 1 | } |
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| 54 | 1 | ||
| 55 | 1 | ctl.btheadset { |
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| 56 | 1 | type bluetooth |
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| 57 | 1 | }</pre> |
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| 58 | 1 | Check that your audio device is seen by ALSA |
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| 59 | 1 | <pre>$ aplay -L |
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| 60 | 1 | ...<snip>... |
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| 61 | 1 | btheadset |
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| 62 | 1 | Bluetooth headset audio output device</pre> |
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| 63 | 1 | Main Menu -> Service Menu -> MythTV Configuration -> Setup -> General -> 4th Page |
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| 64 | 1 | <pre>Audio output device: ALSA:btheadset</pre> |
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| 65 | 3 | mihanson | _Note: you may have to manually type the above setting into the "Audio output device" field_ |
| 66 | 3 | mihanson | |
| 67 | 4 | mihanson | Test out your new Bluetooth headset! A link to a bash script called _toggleBT.sh_ is located at the bottom of this page. Use irexec and bind it to a remote control key press for easy toggling. You may have to adjust variables in the script. |
| 68 | 1 | ||
| 69 | 3 | mihanson | h1. Troubleshooting |
| 70 | 3 | mihanson | |
| 71 | 3 | mihanson | * _bluez-simple-agent_ bails out complaining about dbus. |
| 72 | 3 | mihanson | > Try rebooting your machine. I had some issues getting the _bluez-simple-agent_ step to complete successfully until I rebooted. This probably had something to do with bluetoothd, hal and dbus starting in the right order. In theory hal and dbus should be started before bluetoothd, but when I restarted the services manually it still complained. After reboot this came up fine. |
| 73 | 1 | * Adjust the class in /etc/bluetooth/main.conf |
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| 74 | 3 | mihanson | |
| 75 | 3 | mihanson | <pre>$ sudo hciconfig hci0 class |
| 76 | 3 | mihanson | hci0: Type: BR/EDR Bus: USB |
| 77 | 3 | mihanson | BD Address: 00:0A:94:02:9C:8C ACL MTU: 310:10 SCO MTU: 64:8 |
| 78 | 3 | mihanson | Class: 0x480104 |
| 79 | 3 | mihanson | Service Classes: Capturing, Telephony |
| 80 | 3 | mihanson | Device Class: Computer, Desktop workstation |
| 81 | 3 | mihanson | </pre> |
| 82 | 3 | mihanson | > Define the hexidecimal value for Class (0x480104 in the above case) in _/etc/bluetooth/main.conf_ |