imported>Uri.mashiach at 08:30, 5 December 2018

2018-12-05T08:30:19Z

Ilya: New page: ==== Bluez5 & PulseAudio ==== Debian stretch/sid is using BlueZ 5 and PluseAudio 5, which are fairly new.
BlueZ 5 dropped support for alsa, so the solution for now is to use PulseAudio...

2017-06-15T11:32:25Z

New page: ==== Bluez5 & PulseAudio ==== Debian stretch/sid is using BlueZ 5 and PluseAudio 5, which are fairly new. BlueZ 5 dropped support for alsa, so the solution for now is to use PulseAudio...

New page

==== Bluez5 & PulseAudio ====
Debian stretch/sid is using BlueZ 5 and PluseAudio 5, which are fairly new. 
BlueZ 5 dropped support for alsa, so the solution for now is to use PulseAudio. 
PulseAudio 5 only supports the A2DP profile and not HSP/HFP. 
* Software to install {{filename|pulseaudio}}, {{filename|pulseaudio-module-bluetooth}}
{{Note|{{filename|debian-image.tar.bz2}} has all these packages pre-installed. Continue to the [[#Start PulseAudio | Start PulseAudio]] section if you use this root filesystem.}}
===== Install and configure PulseAudio =====
<pre>
root@cl-rootfs:~# apt-get install --no-install-recommends pulseaudio pulseaudio-module-bluetooth
</pre>
* Create a systemd service for running pulseaudio as the pulse user.
<pre>
root@cl-rootfs:~# cat << eof > /etc/systemd/system/pulseaudio.service
[Unit]
Description=Pulse Audio

[Service]
Type=simple
ExecStart=/usr/bin/pulseaudio --system --disallow-exit --disable-shm

[Install]
WantedBy=multi-user.target
eof

root@cl-rootfs:~# chown pulse:pulse /etc/systemd/system/pulseaudio.service
</pre>

* Create a dbus configuration file for running pulseaudio. Give the pulse user permission to use Bluetooth.
<pre>
root@cl-rootfs:~# cat << eof > /etc/dbus-1/system.d/pulseaudio-bluetooth.conf
<busconfig>

<policy user="pulse">
<allow send_destination="org.bluez"/>
</policy>

</busconfig>
eof

root@cl-rootfs:~# chmod 0666 /etc/dbus-1/system.d/pulseaudio-bluetooth.conf
</pre>
* Paste the following lines to the end of /etc/pulse/system.pa:
<pre>
root@cl-rootfs:~# cat << eof >> /etc/pulse/system.pa
### Automatically load driver modules for Bluetooth hardware
.ifexists module-bluetooth-policy.so
load-module module-bluetooth-policy
.endif

.ifexists module-bluetooth-discover.so
load-module module-bluetooth-discover
.endif
eof
</pre>
* Create {{filename|/var/run/pulse/.config/pulse}} directory. Change its ownership.
<pre>
root@cl-rootfs:~# mkdir -p /var/run/pulse/.config/pulse
root@cl-rootfs:~# chown -R pulse:pulse /var/run/pulse
</pre>
* Make the root belong to the pulse-access,audio groups
<pre>
root@cl-rootfs:~# usermod -a -G pulse-access,audio root
</pre>

===== Start PulseAudio =====
* Start PulseAudio service
<pre>
root@cl-rootfs:~# systemctl daemon-reload
root@cl-rootfs:~# systemctl start pulseaudio.service
</pre>
* Make sure that the service is active, running and reports on no errors.
<pre>
root@cl-rootfs:~# systemctl status pulseaudio.service
Loaded: loaded (/etc/systemd/system/pulseaudio.service; disabled)
Active: active (running) since Mon 2015-07-20 12:00:13 UTC; 1min 34s ago
Main PID: 805 (pulseaudio)
CGroup: /system.slice/pulseaudio.service
└─805 /usr/bin/pulseaudio --system --disallow-exit --disable-shm
</pre>

===== Bluez5 pairing =====
PulseAudio 5.x supports A2DP per default. 
Make sure the following packages are installed:
pulseaudio pulseaudio-module-bluetooth pulseaudio-utils, bluez, bluez-tools.
{{Note|Without {{filename|pulseaudio-module-bluetooth}} you won't be able to connect after the next pairing and you won't get any usable error messages.}}

* Start the Bluetooth system:
<pre>
root@cl-rootfs:~# systemctl start bluetooth
</pre>
Now we can use the {{cmd|bluetoothctl}} command line utility to pair and connect. Run
<pre>
root@cl-rootfs:~# bluetoothctl
[bluetooth]#
</pre>
to be greeted by its internal command prompt.Then enter:
<pre>
[bluetooth]# power on
[bluetooth]# agent on
[bluetooth]# default-agent
[bluetooth]# scan
</pre>
Now make sure that your headset is in pairing mode. It should be discovered shortly. For example,
<pre>
[NEW] Device 00:07:A4:F2:B3:CB Motorola HT820
</pre>
shows a device that calls itself "Motorola HT820" and has MAC address 00:07:A4:F2:B3:CB.
We will now use that MAC address to initiate the pairing:
<pre>
[bluetooth]# pair 00:07:A4:F2:B3:CB
</pre>
After pairing, you also need to explicitly connect the device:
<pre>
[bluetooth]# connect 00:07:A4:F2:B3:CB
</pre>
If everything works correctly, you now have a separate output device in PulseAudio. 
You can now disable scanning again and exit the program:
<pre>
[bluetooth]# scan off
[bluetooth]# exit
</pre>

===== Playback using PulseAudio =====
{{Note|Next examples assume that the device mac address is '''00_07_A4_F2_B3_CB'''}}
* Show the PulseAudio device
<pre>
root@cl-rootfs:~# pactl list cards | awk '/00_07_A4_F2_B3_CB/' RS=""
Card #1
Name: bluez_card.00_07_A4_F2_B3_CB
Driver: module-bluez5-device.c
Owner Module: 13
Properties:
device.description = "Motorola HT820"
device.string = "00:07:A4:F2:B3:CB"
device.api = "bluez"
device.class = "sound"
device.bus = "bluetooth"
device.form_factor = "headset"
bluez.path = "/org/bluez/hci0/dev_00_07_A4_F2_B3_CB"
bluez.class = "0x240404"
bluez.alias = "Motorola HT820"
device.icon_name = "audio-headset-bluetooth"
device.intended_roles = "phone"
Profiles:
headset_head_unit: Headset Head Unit (HSP/HFP) (sinks: 1, sources: 1, priority: 20, available: no)
a2dp_sink: High Fidelity Playback (A2DP Sink) (sinks: 1, sources: 0, priority: 10, available: yes)
off: Off (sinks: 0, sources: 0, priority: 0, available: yes)
Active Profile: a2dp_sink
Ports:
headset-output: Headset (priority: 0, latency offset: 0 usec)
Part of profile(s): headset_head_unit, a2dp_sink
headset-input: Headset (priority: 0, latency offset: 0 usec, not available)
Part of profile(s): headset_head_unit
</pre>
:* Make sure the active card profile is a2dp_sink. Otherwise switch to it:
<pre>
# pactl set-card-profile 1 a2dp_sink
</pre>
:* Show the PulseAudio sink
<pre>
root@cl-rootfs:~# pactl list sinks | awk '/00_07_A4_F2_B3_CB/' RS=""
Sink #1
State: SUSPENDED
Name: bluez_sink.00_07_A4_F2_B3_CB
Description: Motorola HT820
Driver: module-bluez5-device.c
Sample Specification: s16le 2ch 48000Hz
Channel Map: front-left,front-right
Owner Module: 13
Mute: no
Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
balance 0.00
Base Volume: 65536 / 100% / 0.00 dB
Monitor Source: bluez_sink.00_07_A4_F2_B3_CB.monitor
Latency: 0 usec, configured 0 usec
Flags: HARDWARE DECIBEL_VOLUME LATENCY
Properties:
bluetooth.protocol = "a2dp_sink"
device.description = "Motorola HT820"
device.string = "00:07:A4:F2:B3:CB"
device.api = "bluez"
device.class = "sound"
device.bus = "bluetooth"
device.form_factor = "headset"
bluez.path = "/org/bluez/hci0/dev_00_07_A4_F2_B3_CB"
bluez.class = "0x240404"
bluez.alias = "Motorola HT820"
device.icon_name = "audio-headset-bluetooth"
device.intended_roles = "phone"
Ports:
headset-output: Headset (priority: 0)
Active Port: headset-output
Formats:
pcm
</pre>
:* Play sound using {{filename|paplay}}. Example:
<pre>
root@cl-rootfs:~# paplay -d bluez_sink.00_07_A4_F2_B3_CB /path/to/<audio-file.wav>
</pre>

@@ Line 99: / Line 99: @@
 [bluetooth]# agent on
 [bluetooth]# default-agent
-[bluetooth]# scan
+[bluetooth]# scan on
 </pre>
 Now make sure that your headset is in pairing mode. It should be discovered shortly. For example,
@@ Line 160: / Line 160: @@
 <pre>
 root@cl-rootfs:~# pactl list sinks | awk '/00_07_A4_F2_B3_CB/' RS=""
-Sink #1
+Sink #2
          State: SUSPENDED
-         Name: bluez_sink.00_07_A4_F2_B3_CB
+         Name: bluez_sink.00_07_A4_F2_B3_CB.a2dp_sink
          Description: Motorola HT820
          Driver: module-bluez5-device.c
@@ Line 172: / Line 172: @@
                  balance 0.00
          Base Volume: 65536 / 100% / 0.00 dB
-         Monitor Source: bluez_sink.00_07_A4_F2_B3_CB.monitor
+         Monitor Source: bluez_sink.00_07_A4_F2_B3_CB.a2dp_sink.monitor
          Latency: 0 usec, configured 0 usec
          Flags: HARDWARE DECIBEL_VOLUME LATENCY
@@ Line 196: / Line 196: @@
 :* Play sound using {{filename|paplay}}. Example:
 <pre>
-root@cl-rootfs:~# paplay -d bluez_sink.00_07_A4_F2_B3_CB /path/to/<audio-file.wav>
+root@cl-rootfs:~# paplay -d bluez_sink.00_07_A4_F2_B3_CB.a2dp_sink /path/to/<audio-file.wav>
 </pre>

Transclusion: Debian: iMX7: Bluez5 PulseAudio - Revision history

imported>Uri.mashiach at 08:30, 5 December 2018

Ilya: New page: ==== Bluez5 & PulseAudio ==== Debian stretch/sid is using BlueZ 5 and PluseAudio 5, which are fairly new. BlueZ 5 dropped support for alsa, so the solution for now is to use PulseAudio...

Ilya: New page: ==== Bluez5 & PulseAudio ==== Debian stretch/sid is using BlueZ 5 and PluseAudio 5, which are fairly new.
BlueZ 5 dropped support for alsa, so the solution for now is to use PulseAudio...