Connecting to mod_portaudio

[dryauquaman]

The next part of my project is to be able to dial into FS and connect to a microphone on a Raspberry Pi USB Audio Adapter.
I've modified the portaudio.conf.xml file, reloaded the module from the CLI but haven't been to get the mod to recognize the audio adapter.
When I reload the mod I get this error:

2021-04-05 10:52:18.954707 [DEBUG] mod_portaudio.c:1773 global indev [-1]
2021-04-05 10:52:18.954707 [ERR] mod_portaudio.c:1777 Cannot find an input device
2021-04-05 10:52:18.954707 [DEBUG] mod_portaudio.c:1786 global outdev [-1]
2021-04-05 10:52:18.954707 [ERR] mod_portaudio.c:1790 Cannot find an output device

Reading the notes in the xml file, it says this:

<!-- 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) -->

I bolded the text that suggest that I should be able to put in "USB" if the actual device name is "USB Audio." It doesn't matter what I put in there, it never seems to find it when I reload the logs.
To verify what devices I have, I used the command arecord -l. I get this for output:

pi@raspberrypi-freeswitch:/etc/freeswitch $ arecord -l
**** List of CAPTURE Hardware Devices ****
card 2: Device [USB Audio Device], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0

Similar output for the lsusb command.

pi@raspberrypi-freeswitch:/etc/freeswitch $ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0d8c:0014 C-Media Electronics, Inc. Audio Adapter (Unitek Y-247A)
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

the fs_cli command pa devlist gives me this result:

freeswitch@raspberrypi-freeswitch> pa devlist
-ERR no reply

Does anyone have any further tips?
Note: I've also restarted FS but it doesn't make a difference.

 

[ad5ou]

have you tried leaving it blank? "(or blank for default)"

I've never tried using port audio so it is mostly guesses, but your fs_cli command pa devlist isn't working because the module didn't load.
If the module won't load with setting devices to use "default" then you might be missing a required package etc possibly pulseaudio?

Also have you looked at https://freeswitch.org/confluence/display/FREESWITCH/FSComm ?
FSComm seems to be the essence of what you are building.

 

[dryauquaman]

No, I haven't checked out FSComm. This is the first time I've heard of it.
I'll check it out and get back with you.

I'm getting a bit nervous that I may have to compile mod_portaudio. That would be the first time I've done that - a whole new learning curve.