Since releasing Winrad V1.30 I received some reports of lockups and freezes. Somebody had them frequently (every few minutes), others (like me) very rarely (and in my case this made difficult the debugging).
Now I think I have nailed the culprit, which was an interaction between a working thread and the GUI thread. The working thread used some resources of the GUI thread and, depending on when this happened, this caused the hangs, as not always those resources were available. The resources used were related to the floating display in the upper waterfall/spectrum window, so the hangs were more probable when the mouse cursor was hovering on that area. Additionally, I found another bug where (silly me...) I was checking for the confinement of the values of a certain vector within given limits. Stupidly the check was done only for the positive values, and not for the negative ones.... that caused other hangs, especially when the AGC was switched OFF (a new feature of V1.31) Finally, somebody reported that the sound quality of V1.25 was better than that of V1.30. As I haven't done any changes that could affect the sound quality I scratched my head, until I found what probably could have caused that false impression of a lower quality. In V1.25 the default lower limit of the audio passband was 180 Hz. everything below that was cut, unless you had changed the lower border of the passband window, In V1.30 I had lowered that value, bringing it to 120 Hz by default. So if you did not change that default value, the sound is richer in low tones, and this, especially for SSB signals, not always is perceived positively. All this long story to invite you, and especially those who experienced frequently the hang ups, to test a beta version of Winrad, which has (hopefully) those bug fixed and the default low cut limit brought again at 180 Hz. You can download this beta from here : http://www.sdradio.eu/pgm/Winrad_131b09beta_setupXP.exe reporting please whether it works or doesn't. If all is good, I will shortly release it, with some more features added. Thanks for your cooperation 73 Alberto I2PHD
