[Freeswitch-users] mod_portaudio, permissions and distorted audio

[Stanislav Sinyagin]

Found a solution, will soon describe it in confluence. It needs software
buffers like in the jira ticket.






On 27 Nov 2017 14:01, "Stanislav Sinyagin" <ssinyagin at gmail.com> wrote:

> hi,
>
> first of all, I solved the issue with ALSA permissions: by default,
> /dev/snd/* devices are writable by "audio" group, but FreeSWITCH is
> launched with "-g freeswitch" by default, and that excludes the
> "audio" group from the list of active GID's. As a result,
> mod_portaudio cannot find any audio devices.
>
> A file "/etc/udev/rules.d/99-freeswitchaudio.rules" with contents:
>
> SUBSYSTEM=="sound", GROUP="freeswitch"
>
> sets all sound devices to freeswitch group. If it's an appliance that
> is not supposed to run desktop applications, this method is the least
> intrusive. Otherwise, you would have to mangle the systemd unit files,
> to remove the -g option from exec string.
>
> But now I have a strange issue, described here, with an audio attachment:
> https://freeswitch.org/jira/browse/FS-10809
>
> The hardware platform is PCengines APU2, running Debian Jessie:
> http://pcengines.ch/apu2.htm
> It has a USB 3.0 host which is otherwise working fine.
>
> Any hints will be appreciated.
>
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