[arm-allstar] USB radio - no repeat audio

[Dave Petrie]

Hi Lu, maybe check the, devstr=1-1.2:1.0, that are in the
simpleusb_tune_usb1.conf, and see if they match what you see when you run
this command with your usb card plugged in. Just trying to verify you are
plugged into the right usb port as they change with different models of
raspberry. It's a little confusing when linux calls the device0 or device1
when it has nothing to do with the devstr= number.
.
how to find my usb sound cards in linux:
log into the site computer, log in as root. I use putty SSH from another
windows computer on the system.
Menu item 9 enter and then type:
cd \ [there is a space after cd , then hit enter and then enter again, then
cd / enter, to make sure you’re at the root command
prompt,
my login looks like this: [root at WA2KJC-PI /]#
Then type:
cat /proc/asound/cards
and here is what I get:
[root at WA2KJC-PI ~]# cat /proc/asound/cards
0 [Device ]: USB-Audio - USB PnP Sound Device
C-Media Electronics Inc. USB PnP Sound Device at usb-3f980000.usb-1.2, full
spe
1 [Device_1 ]: USB-Audio - USB PnP Sound Device
C-Media Electronics Inc. USB PnP Sound Device at usb-3f980000.usb-1.1.3,
full s
Note: don’t pay attention to the 0[Device] or the 1[Device] that’s only the
order in which they were inserted
Not where they actually are in the 4 port usb connector:
Usb is bottom left with the Ethernet on the left. Usb1 is bottom right.
Usb2 is top left. Usb3 is top right.
So insert only one usb audio card at a time and run the command and make a
note of the “usb-1.2” or “usb-
1.1.3” etc etc
bottom left usb usb-1.1.3
bottom right usb usb-1.2
top right usb usb-1.3
top left usb usb-1.1.2
The actual sound card doesn’t have any influence on the result, it’s only
the port it’s plugged into is being
identified with the usb something.

After typing all this, some copy and paste, all you really have to do is
plug the usb into a different port and
try your audio test again until all ports have been tested. It might be a
quicker way, maybe you already did that.
Dave

On Thu, Nov 11, 2021 at 7:21 AM "David McGough via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

>
> Hi Lu,
>
> No flames---chan_usbradio does work (with some "audio glitches") on
> RPi3 or RPi4 hardware.  I'm not sure what's happening with your setup?
>
> ...I just tested on an RPi3A radio-less node and chan_usbradio works okay
> in duplex=2 for me, using these settings:
>
> ;usbradio.conf
> [usb1]
> hdwtype=0
> rxboost=1
> txboost=1
> rxctcssrelax=1
> txctcssdefault=100.0
> rxctcssfreqs=100.0
> txctcssfreqs=100.0
> ;rxctcssoverride=0
> carrierfrom=usbinvert
> ctcssfrom=no
> rxdemod=flat
> txprelim=yes
> txlimonly=no
> txtoctype=notone
> txmixa=composite
> txmixb=0
> invertptt=0
> duplex=1
> rxondelay=0
> rxnoisefiltype=0
> eeprom=0
>
>
> ;rpt.conf
> [1234]
> rxchannel=Radio/usb1
> duplex=2
>
>
>
> 73, David KB4FXC
>
>
> On Wed, 10 Nov 2021, "Lu Vencl via ARM-allstar" wrote:
>
> > I know I'm going to get flamed for this post, but as I mentioned before
> > I still have a need on a couple of my nodes to use USB radio. I'm using
> > simple USB everywhere I can but 2 of my 10 repeaters need to use USB
> > radio. I just uncovered that there is no repeat audio when you use USB
> > radio even with duplex=2. Just want to confirm that someone else knows
> > about this or has experienced the same issue?
>
> > I don't believe I have anything else set up incorrectly but I just
> > wanna confirm that I did not miss something? I transitioned from an old
> > acid box to  hamvoip and copied everything over manually, including usb
> > tune settings  .Everything else works perfectly fine. Just when local
> > traffic occurs on the repeater, people can't hear each other.
> >
> > Thanks
> >
> > Lu
> > KA4EPS
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