From my experience, it’s not the URI; more likely an issue with the computer USB controller in the PC. ...Spent a bit of time finding that one.

Thanks,
Bob
K6ECM
73


On Apr 17, 2018, at 7:05 AM, John Locke <jldharma@gmail.com> wrote:

Hi,
I have a very strange problem with DIAL + USB URIs.
I get choppy audio after a couple of days or maybe several hours of constant use.
Restarting asterisk or even the PC wont solve the problem.
The problem only goes away if I connect the URI to another USB or shut down the PC for several hours.
Maybe some temperature problem on the USB card?? 

I'm using a standard PC (i5 + 8GB) with 2 USB URIs.
To test the problem I connected a tone generator to the URIs.
These are some examples of the saved audio files in asterisk:

Normal
<image.png>

After several hours
<image.png>

<image.png>

<image.png>

after one day
<image.png>

<image.png>

Some advice would be very appreciated
Thanks in advance
Best Regards
John





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