[Freeswitch-users] Configuring mod_portaudio for Debian built-in (JACK?) audio

[Steven Schoch]

I had it working at home, but when I installed the switch at the bookstore,
there is nothing to be heard on the audio ports. Now I'm trying to debug it
remotely, which is difficult because I can't hear the speaker.

The system is an HP ProDesk 400. It has a "Audio-out/Audio-in combo jack"
on the front panel. It has an "audio-in" jack, and an "audio-out jack for
powered devices" on the back. When it was working at home, I plugged
powered speakers into the audio-out jack on the back.

pa devlist shows this:
freeswitch at pbx> pa devlist
0;HDA Intel PCH: CX20632 Analog (hw:0,0)(ALSA);2;2;r,i,o
1;HDA Intel PCH: CX20632 Alt Analog (hw:0,2)(ALSA);2;0;
2;HDA Intel PCH: HDMI 0 (hw:0,3)(ALSA);0;8;
3;HDA Intel PCH: HDMI 1 (hw:0,7)(ALSA);0;8;
4;HDA Intel PCH: HDMI 2 (hw:0,8)(ALSA);0;8;
5;HDA Intel PCH: HDMI 3 (hw:0,9)(ALSA);0;8;
6;HDA Intel PCH: HDMI 4 (hw:0,10)(ALSA);0;8;
7;sysdefault(ALSA);128;128;
8;front(ALSA);0;2;
9;surround40(ALSA);0;2;
10;surround51(ALSA);0;2;
11;surround71(ALSA);0;2;
12;hdmi(ALSA);0;8;
13;lavrate(ALSA);128;128;
14;samplerate(ALSA);128;128;
15;speexrate(ALSA);128;128;
16;upmix(ALSA);8;8;
17;vdownmix(ALSA);6;6;
18;default(ALSA);128;128;
19;dmix(ALSA);0;2;

I have no idea what most of his is, and the HDMI in the list is confusing,
because the system has a DisplayPort connector, but no HDMI.

I assume device #0 is the connectors on the back. I also assume that when
it bridge to "portaudio/auto_answer" that it will use the only device that
is configured with a "o", which is device #0.

One difference between home and the current location is the addition of a
10' audio cable between the computer and the speaker, but I can't see how
this would make a difference.

An advanced question is how to use a portaudio microphone. I plugged a
microphone into the "audio-in" on the back, but this isn't working either.
Is this because that port needs line-level audio? The HP manual says the
front audio panel connector can be used for a microphone. Is that portaudio
device #1? How to I configure that device for input?

-- 
Steve

On Sun, Mar 28, 2021 at 1:41 PM Bote Man <botelist at gmail.com> wrote:

> I have never tried any of the linux audio drivers, but I have never heard
> a good word about any of them. YMMV.
>
>
>
> In ${conf_dir}/autoload_configs/portaudio.conf.xml I see:
>
>
>
>   <settings>
>
>     <!-- indev, outdev, ringdev:
>
>    partial case sensitive string match on something in the name
>
>    or the device number prefixed with # eg "#1" (or blank for default) -->
>
>
>
>     <!-- device to use for input -->
>
>     <param name="indev" value=""/>
>
>     <!-- device to use for output -->
>
>     <param name="outdev" value=""/>
>
>
>
> The wiki has some good ideas on how to list the available devices from
> fs_cli in:
>
> https://freeswitch.org/confluence/display/FREESWITCH/mod_portaudio
>
>
>
> One suggestion to aid you in testing would be to use the “playback”
> dialplan app to generate test tones with tone_stream or play a .wav file.
>
>
>
>
>
> ---
>
> Bote Man
>
> Bote Communications
>
>
>
>
>
>
>
> *From:* FreeSWITCH-users <freeswitch-users-bounces at lists.freeswitch.org> *On
> Behalf Of *Steven Schoch
> *Sent:* Sunday, 28 March, 2021 00:18
> *To:* freeswitch-users <freeswitch-users at lists.freeswitch.org>
> *Subject:* [Freeswitch-users] Configuring mod_portaudio for Debian
> built-in (JACK?) audio
>
>
>
> I have an HP Prodesk tower with Debian and FreeSWITCH installed. It has an
> audio jack that is plugged into a speaker. I configured the system so that
> the devices in /dev/snd are group "freeswitch". Now I want to transfer a
> call to the speaker with <action application="bridge"
> data="portaudio/auto_answer"/>.
>
>
>
> However, I am getting errors when I load mod_portaudio that look like this:
>
> 2021-03-27 21:15:30.747447 [ERR] mod_portaudio.c:1617 Invalid outstream
> specified for endpoint 'default'
>
>
>
> It looks like a config file issue, but I have no clue where to start
> because I couldn't find a good example. Any suggestions?
>
>
>
> --
>
> Steve
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