[Freeswitch-users] mod_portaudio on Raspberry Pi currently broken?
Tom Lynn
tom at tomlynn.com
Mon Sep 7 16:06:07 UTC 2020
Saied,
You are a very determined man! I followed your instructions and yes, this
works when I run it from the command line as root. Again, when launched by
systemd I come up with no reply when I run pa devlist in fs_cli.
When free time is more plentiful, I will investigate trying to run this as
a different user. I think I just need to be in the proper group. I will
also need to adapt this to use the 3.5mm output of the pi. Where do you see
the device names, in the alsa mixer?
---------- Forwarded message ---------
From: Tazari, Mohammad Reza <saied.tazari at gmail.com>
Date: Wed, Aug 26, 2020 at 11:01 AM
Subject: Re: [Freeswitch-users] mod_portaudio on Raspberry Pi currently
broken?
To: <freeswitch-users at lists.freeswitch.org>
Tom, other interested people,
I finally got it working on a raspberry pi-4 with buster lite, mostly
thanks to the following articles:
https://sigmdel.ca/michel/ha/rpi/bluetooth_01_en.html
https://sigmdel.ca/michel/ha/rpi/bluetooth_02_en.html
https://sigmdel.ca/michel/ha/rpi/bluetooth_n_buster_01_en.html
The exact reproducible steps have been:
1. Started on the basis of
+ my FreeSwitch installation based on instructions under
https://freeswitch.org/confluence/display/FREESWITCH/Raspberry+Pi
2.
*sudo apt-get update && sudo apt-get install -y bluealsa *
3. *sudo vi /lib/systemd/system/bluealsa.service*
--> substituted ExecStart=/usr/bin/bluealsa with
--> Environment=LIBASOUND_THREAD_SAFE=0
ExecStart=/usr/bin/bluealsa -p hfp-hf -p hsp-hs -p hfp-ag -p hsp-ag
-p a2dp-source -p a2dp-sink
4. *sudo vi /lib/systemd/system/bluetooth.service*
--> Added --noplugin=sap to the end of the following line
ExecStart=/usr/lib/bluetooth/bluetoothd
5. *sudo vi /lib/systemd/system/bthelper at .service*
--> Added ExecStartPre=/bin/sleep 2 in a new line after
Type=simple
6. Created a new file by *sudo vi /etc/asound.conf* and added the
following as its sole content (if you know the MAC address of your
Bluetooth device, substitute it already now; otherwise you can change it
also later in step 9):
pcm.btAudioIO {
type asym
playback.pcm {
type plug
slave.pcm {
type bluealsa
service "org.bluealsa"
device "00:11:09:94:14:3D"
profile "a2dp"
delay 10000
}
}
capture.pcm {
type plug
slave.pcm {
type bluealsa
service "org.bluealsa"
device "00:11:09:94:14:3D"
profile "sco"
delay 10000
}
}
hint {
show on
description "Bluetooth Audio Input/Output Dvice"
}
}
7.
*sudo adduser freeswitch audio sudo adduser *
*freeswitch bluetooth sudo reboot *
8. After reboot, run *sudo bluetoothctl* and then find, pair, connect
and trust your Bluetooth device with the following control commands of this
program:
*agent on scan on*
<-- find the MAC address of your device in the scan outputs
* pair 50:11:2D:06:ED:2F *
*scan off *
*connect 50:11:2D:06:ED:2F trust 50:11:2D:06:ED:2F exit *--> from now on,
your device should automatically reconnect to the pi each time after the pi
is rebooted; if, however, this is not the case, you will have to redo this
step after each reboot.
9. In this example, the device that I have paired and trusted has a
different MAC address as the one in /etc/asound.conf; therefore we must
edit the file and set the right MAC address. If you already had the right
MAC address, you may go to the next step without reboot; but, if you had to
change the file /etc/asound.conf, then you will have to reboot before going
to the next step.
10. Test your device with the following two commands (five seconds
recording):
*arecord -D btAudioIO -d 5 test.wav aplay *
*-D btAudioIO test.wav *
11. Assuming that the above test is successful, you now
- edit <FreeSwitch-Config-Home>/autoload_configs/modules.conf.xml and
un-comment the loading of mod_portaudio
- edit <FreeSwitch-Config-Home>/autoload_configs/portaudio.conf.xml and
substitute the whole content with the following new content:
<configuration name="portaudio.conf" description="Soundcard Endpoint">
<settings>
<param name="indev" value="btAudioIO"/>
<param name="outdev" value="btAudioIO"/>
<param name="ringdev" value="btAudioIO"/>
<param name="hold-file" value="$${hold_music}"/>
<param name="dialplan" value="XML"/>
<param name="cid-name" value="$${outbound_caller_name}"/>
<param name="cid-num" value="$${outbound_caller_id}"/>
<param name="sample-rate" value="48000"/>
<param name="codec-ms" value="20"/>
</settings>
</configuration>c
12. In my case, I didn't need to do anything for dial plans because in
my system both the in- and outbound calls are first handled by my python
scripts; in particular, the BT handsfree device is never supposed to
make calls but is called for making announcements or invited to a running
call as the third leg. So far, I was using an IP telephone with
auto-answering capability as extension 000 of my FreeSwitch for this
purpose. To substitute that phone with the BT handsfree device, I just
needed to update my related python script with the following command:
*sudo sed -i 's#user/000@[0-9.]+#portaudio/auto_answer#g' dial.py*
After a reboot, after which also FreeSwitch and my application start,
everything was working for me just fine :-)
Cheers,
-- Saied
ForwardedMessage.eml
Subject:
Re: [Freeswitch-users] mod_portaudio on Raspberry Pi currently broken?
From:
Tom Lynn <tom at tomlynn.com> <tom at tomlynn.com>
Date:
27-Jul-20, 07:56
To:
FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
<freeswitch-users at lists.freeswitch.org>
I'm in the same boat with portaudio when it's started with systemd. When I
disable it as a service and start it from the command line, pa devlist does
return a list of devices. Still workingon getting a call from portaudio to
a station and vice versa. Calling a station from portaudio device goes to
voicemail and in reverse direction I never get a ring indication, just
music on hold.
On Tue, Jun 30, 2020 at 8:21 PM saiedt <saied.tazari at gmail.com> wrote:
Lesley Pervis wrote
> Sorry for the spam, but I thought I'd mention that I can aplay no problem
> from the command line as the 'freeswitch' user, and yet when FS is running
> as that user, no luck.
Exactly seven years after your last post here, I'm there to ask if you
finally succeeded to resolve the issue?
My case:
1. Pi-4 with Raspbian buster und latest related FreeSwitch distribution,
apt-upgraded and updated just yesterday
2. aplay is working both with the audio jack and with bluetooth (although
not simultaneously: as soon as I have a bluetooth audio connection, the
audio jack stops to work, and I cannot switch back to it with "amixer cset
numid=3 1", but aplay can continue to use the bluetooth connection again
after I issue "amixer cset numid=3 65536")
3. it seems that I do not have any permission issue as both pi and
freeswitch are in the audio group and related devices under /dev/snd are in
that group
4. I have already installed alsaoss, libasound2 and libasound2-dev
5. The output of "pa rescan" in fs_cli is the following:
2020-06-19 06:55:18.803478 [INFO] mod_portaudio.c:3186 Looking for new
devices.
2020-06-19 06:55:18.803478 [INFO] mod_portaudio.c:2102 PortAudio version
number = 1246720
PortAudio version text = 'PortAudio V19.6.0-devel, revision
396fe4b6699ae929d3a685b3ef8a7e97396139a4'
2020-06-19 06:55:18.943433 [DEBUG] mod_portaudio.c:1773 global indev [-1]
2020-06-19 06:55:18.943433 [ERR] mod_portaudio.c:1777 Cannot find an input
device
2020-06-19 06:55:18.943433 [DEBUG] mod_portaudio.c:1786 global outdev [-1]
2020-06-19 06:55:18.943433 [ERR] mod_portaudio.c:1790 Cannot find an output
device
2020-06-19 06:55:18.943433 [INFO] mod_portaudio.c:2125 Number of devices = 0
Any clue, what could be wrong on my side?
Thanks!
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