[Freeswitch-users] FreeSWITCH-users Digest, Vol 171, Issue 7

[Tazari, Mohammad Reza]

Tom,

first: I hope that you noticed that in my latest email, I reported that 
I am still not able to make use of mod_portaudio; so the instructions I 
provided on Aug 26 helped to have some progress on my side, but they 
have not been sufficient...

Now, you said: you "just need to be in the proper group"; I would just 
add the importance of the proper user to this statement, as well.

The page 
https://freeswitch.org/confluence/display/FREESWITCH/Debian+Post-Install+Tasks 
suggests a systemd unit file for FS that includes the directive 
"User=root". But, there is also the comment saying that FS starts "as 
root, so Freeswitch can set its priority, create some directories if 
needed, etc. Then it _*will drop privileges to continue running as user 
and group Freeswitch*_."

Are you using that same unit file? If so, then the following part of my 
instructions will be essential for the success:
*sudo adduser freeswitch audio
sudo adduser ***freeswitch *bluetooth*

Otherwise, you must find out as which user the FS is eventually running 
in your system and then run the above two commands for that user.

I gave up using the jack because it is only for output, but in my 
application I need both input and output. In the beginning that I didn't 
know this and was hoping to use the jack for my application, I used the 
amixer command few times, but I am not very familiar with this command, 
nor with alsamixer.

 From what I have understood so far:

  * aplay -l and arecord -l will show only your audio devices on sound
    cards of type hardware (I think that /usr/share/alsa/alsa.conf is
    somehow involved in this)
  * aplay -L and arecord -L will also show additional devices defined in
    /etc/asound.conf and the current user's ~/.asoundrc (such as virtual
    devices and real devices on virtual sound cards)
  * mod_portaudio has been only able to see my real devices via bluealsa
    which acts as a kind of virtual sound card, nothing else!!! This is
    very strange to me and I haven't found any explanation for that....


Kind regards,


-- Saied


freeswitch-users-request at lists.freeswitch.org wrote on 07-Sep-20 18:07:
>
> ForwardedMessage.eml
>
> Subject:
> Re: [Freeswitch-users] mod_portaudio on Raspberry Pi currently broken?
> From:
> Tom Lynn <tom at tomlynn.com>
> Date:
> 07-Sep-20, 18:06
>
> To:
> FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
>
>
> 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?
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