[App_rpt-users] Distorted audio in app_rpt/Allstar

[Johnny Keeker]

Just another perspective on audio.
I too had a similar experience with occasional distortion.  So I got test gear and checked the audio.  
It was right on, but found the receiver was drifting off frequency from temp changes.  It's been pointed 
out to me, a very large % of times it's a hardware failure, as in my case.  Test gear makes me happy J
Please; Let us know what you find out. 
JK 



From: Jon Rorke <jrorke at cogeco.ca>
To: app_rpt-users at ohnosec.org 
Sent: Wednesday, September 11, 2013 7:51 AM
Subject: Re: [App_rpt-users] Distorted audio in app_rpt/Allstar



I have seen this before. 
What is the TX voice setting on y our node? If its any where near 900 then it may be trying to drive your TX but is running out of room.
Do you have TX boost turned on in USBradio.conf? 


hdwtype=0    
>rxboost=0
>txboost=1
If not turn it on then retune the TX voice. If you can TX voice near 500 (Mid scale) then you have a better chance of not having the audio distort on some peaks.
The same would be true if your TX voice setting is near 100 to 200 and you are over driving the TX a little. In this case then turn off TX boost in USBradio and retune. 

Give this a try ans see if this helps.

Jon VA3RQ


On 9/10/2013 7:38 PM, Andreas Pleschutznig wrote:

Good 
>
>
>sometimes, i get distorted audio locally on the repeat and also on simple announcements like the time announcement. If and when I get that distorted audio it kind of sounds as if the audio stream is sampled i 20ms increments and every other piece is left out. This happens only every now and then, while most of the time the audio is absolutely perfect. 
>
>
>As hardware is a nondescript 2GHz dual core, (all-star uses about 15-25% CPU), so it should not be a speed problem. Two URI’s are connected to this PC, one for the public all-star link, the other to a private GMRS node, 
>
>
>Tried two different radios, so it should not be the radio either, unless two unrelated GM300s have exactly the same problem (For the time being I’ll go under the assumption its not the radio) I don’t know yet if that ever happens on the TCP end, but I doubt it. 
>
>
>Does anyone have *ANY* idea what that could be?
>
>--
>Andreas Pleschutznig, Cell: (832) 633-7817, Sent: MacBook
> KA5PLE, Allstar: 29841, Echolonk: 884823
>
> 
>
>_______________________________________________
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