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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I also can confirm Bert’s observation. The
issue happens here sporadically with different HPSDR hardware and using P*SDR
mRX PS v.3.3.6 on win7 AND win10 machines. Closing P*SDR and restarting solves
the problem in my case. Perhaps this report helps.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>73, Helmut, DC6NY<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext'>Von:</span></b><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'> Hpsdr
[mailto:hpsdr-bounces@lists.openhpsdr.org] <b>Im Auftrag von </b>H.A.Meijer<br>
<b>Gesendet:</b> Mittwoch, 9. Dezember 2015 06:32<br>
<b>An:</b> Andrew; hpsdr@openhpsdr.org<br>
<b>Betreff:</b> Re: [hpsdr] Audio distortions during zoom/pan panadapter<o:p></o:p></span></p>
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<p class=MsoNormal>Hi Andrew,<br>
<br>
Thanks for testing and confirming my observations.<br>
Yes, it's weird and, for now, nobody seems to know exactly what could cause
this problem and why DPS latency checker helps.<br>
<br>
I could understand this happening when you use a PC with limited CPU power that
runs out of free availably processing cycles.<br>
But it happens on a PC with lots of CPU power where I almost don't see any CPU
usage when I look at the CPU cores usage graphics.<br>
I also did try if there is maybe difference between W7 32 bit and 64 bit,
but exactly same problem.<br>
<br>
And there is also still the problem with CTUNE that seems to mesh-up my
(frequency) database.<br>
<br>
But I will not make too much 'noise' about it, I know it's 'freeware' and
I'm very happy with the overall performance.<br>
(I also run "a other very expensive SDR" that has much less
performance and more bug's...)<br>
<br>
73 Bert PA2XHF.<br>
<o:p></o:p></p>
</div>
<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><pre>***** High Performance Software Defined Radio Discussion List *****<o:p></o:p></pre><pre><o:p> </o:p></pre>
<p class=MsoNormal><br>
<br>
<o:p></o:p></p>
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<div id=yiv3314119121>
<div id="yui_3_16_0_1_1449606759082_25031">
<div id="yui_3_16_0_1_1449606759082_25030">
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<p class=MsoNormal style='background:white'><span style='font-size:10.0pt;
font-family:"Helvetica","sans-serif";color:black'>Hi Bert,<o:p></o:p></span></p>
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<p class=MsoNormal style='background:white'><span style='font-size:10.0pt;
font-family:"Helvetica","sans-serif";color:black'>I have exactly the same
problem with distortion as you when zooming. I thought it was a feature!<o:p></o:p></span></p>
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<div id="yui_3_16_0_1_1449606759082_27846">
<p class=MsoNormal style='background:white'><span style='font-size:10.0pt;
font-family:"Helvetica","sans-serif";color:black'>Also I can report that the
distortions go away when I run DPC latency checker as you did!<o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_1_1449606759082_27848">
<p class=MsoNormal style='background:white'><span style='font-size:10.0pt;
font-family:"Helvetica","sans-serif";color:black'>Weird, what could be the
difference when DPC is running??<o:p></o:p></span></p>
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<p class=MsoNormal style='background:white'><span style='font-size:10.0pt;
font-family:"Helvetica","sans-serif";color:black'>I also have another
distortion problem on the audio from time to time, which looks like dropped
packets to the pc, but not sure how to <o:p></o:p></span></p>
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<div id="yui_3_16_0_1_1449606759082_28946">
<p class=MsoNormal style='background:white'><span style='font-size:10.0pt;
font-family:"Helvetica","sans-serif";color:black'>debug, not sure if this is
related to zooming but DPC does not fix it.<o:p></o:p></span></p>
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<div id="yui_3_16_0_1_1449606759082_30043">
<p class=MsoNormal style='background:white'><span style='font-size:10.0pt;
font-family:"Helvetica","sans-serif";color:black'>Andrew<o:p></o:p></span></p>
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<div id="yui_3_16_0_1_1449606759082_30045">
<p class=MsoNormal style='background:white'><span style='font-size:10.0pt;
font-family:"Helvetica","sans-serif";color:black'>G4XZL<o:p></o:p></span></p>
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<p class=MsoNormal style='background:white'><span style='font-size:10.0pt;
font-family:"Helvetica","sans-serif";color:black'>------------------------------<o:p></o:p></span></p>
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<p class=MsoNormal style='background:white'><span style='font-size:10.0pt;
font-family:"Helvetica","sans-serif";color:black'><o:p> </o:p></span></p>
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