[App_rpt-users] No audio from URIx

[(KP4TR)Ramon Gonzalez]

Install alsa-utils to see what the audio settings look like when allstar 
keys the radio up.

Use the alsamixer utility.

sound card 1: alsamixer -c0
sound card 2: alsamixer -c1
sound card 3: alsamixer -c2

etc....


On 3/11/2014 10:25 PM, Willem Schreuder wrote:
> I have built my third AllStar node using a URIx, but cannot get Tx 
> audio out to work.  The node receives audio perflectly, and keys the 
> radio using the PTT line, but there is no audio either from asterisk 
> (e.g. the time announcement) or the "flash" in radio-tune-menu.  
> Adjusting the Tx levels and boost has no effect.
>
> I have swapped URIx, cable and radio with a working node, so I have 
> eliminated a bad URIx, cable or radio as a possibility.  I have also 
> eliminated a bad node configuration by applying a known good node 
> configuration to the computer (which results in no Tx audio) and using 
> the configuration of this node to a different computer (which works 
> fine).
>
> The problem therefore seems to be motherboard related.  I have tried 
> two different motherboards:
>   ECS NM70-I Celeron 1037 Mini ITX
>   GIGABYTE GA-C1007UN-D Celeron 1007U Mini ITX
>
> Both exhibit the exact same symptom:  No Tx audio.  The do share the 
> Intel NM70 chipset.  Disabling or enabling the on board audio seems to 
> have no effect.  lsusb shows only the URIx (C-Media Electronics, Inc) 
> and the Intel USB hub (Intel Corp. Integrated Rate Matching Hub).
>
> Is this a problem folks have previously encountered, or have any 
> suggestions what else I can try?
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