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TOPIC: PC latency - crackling / popping audio

PC latency - crackling / popping audio 31 Aug 2018 12:26 #1

  • HA5X
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Not sure which topic the best to ask this in. I have three computers of different sorts and to a different degree all of these suffer from crackling / popping in the audio when listening to my SunSDR2 Pro. Watching youtube videos about how others use this radio, I realise others also have this problem to some extent.

On my regular second generation i5 laptop it is very-very annoying. On a much older Core2Duo machine, even CPU usage goes way higher, close to 80%. the crackling/popping is minimal unless I start both RX in the radio, and even then it is just a minor discomfort. I now borrowed an i7 laptop with ample GPU and all, and even with both RX on CPU load does not rise over 7%., GPU usage is like 30% of the first GPU, but the audio crackling is even worse than on my i5 on which it was very bad... Watching resource monitor in Win10 I came to the conclusion that this issue is somehow related to network activities. On the i7 for example, if I turn the WLAN adapter off, things become quite smooth. But the second I turn WiFi on, sound starts to crackle every few seconds.

I have downloaded LatencyMon (www.majorgeeks.com/files/details/latencymon.html) which after some time tells me I have latency issues on my PC, but I seem unable to iron this problem out by any idea I have seen so far.

I wonder if any of you have had the similar problem and if you have found any way to get this problem subdued, and if you have, what the solution was. In many a case I find that crackling is much worse through the speaker/headphone jack on the SunSDR2Pro box that it is if I am listening through the soundcard inside the PC.
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PC latency - crackling / popping audio 27 Nov 2018 07:34 #2

  • DaveVK
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I have the same issue here on my i5 Laptop with 8 Gigs of RAM. Crackling is infrequent but it is definitely related to a latency issue. I was going to try running linux to see if that helps but then I would sacrifice the ability to run N1MM logger. I'll keep an eye on this thread. Thanks...
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