With your switch to simpleusb solving it, this may be a portion of the "poor audio" issue the developers of the other distribution have touted as identifying and fixing within usbradio. The reports I have seen from others using that distribution seem to confirm a fix has been made. However, that fix has not been shared back to the greater asterisk/app_rpt community as was promised when that community first branched off.

On Thu, Feb 1, 2018 at 8:44 AM, Robert Newberry <N1XBM@amsat.org> wrote:

I've seen this come up a few times from other people. I've responded asking "are you using DSP for PL? I had the same exact problem and couldn't get a resolution so I switched to simple usb. My guess it's something to do with usb radio. 

N1XBM
Apparare Scientor
Paratus Communicare
Allstar Node # 27086, 41540, 41812, 42086, 42658, 42657
www.n1xbm.com
www.radioguysrepeaternetwork.com

On Feb 1, 2018 9:03 AM, "lengriff@optimum.net" <lengriff@optimum.net> wrote:

The K2ETS repeater(s) [ 2M-27274 & 220-27273 ] are running on a Pi-2 under Debian as a dual node system. I'm using a Class10 SD card. We've had an audio issue for more than a year now, and I'm unable to track down the cause. [ sample attached ] After a re-boot, the audio is perfect. Over the course of a month or so, small audio interruptions begin to appear, becoming actual ' clicks '. It appears that the processor is becoming overloaded, and the DSP is affected. Members have named it our ' Galloping Ghost '. Sometimes, just clearing the log file and re-starting asterisk fixes it, but usually a re-boot is required. I'm stumped. I plan on re-installing Debian, and going to a Raspberry Pi-3 in the spring.   Len, WB2HKK

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