Edwin, Nice to know I'm not alone. Others have contacted me privately with the same issue also.
In the mean time I have done some further experimenting. I have checked both 1.8.0 and 1.9.0SVN821 - there is no difference. Also I have started with a clean database, just in case, again no difference. It is very clear that the issue occurs only when both Gate and Transmit EQ (did not check RX EQ) are enabled. In that case, when starting the transmission with a closed Gate, the CPU% shoots up to 80-90%. If and when the Gate opens, CPU% immediately drops to the usual 20% or so on voice transmission. Sometimes the Gate will open after a delay, other times not at all (see below). All information prior to the Gate opening is lost (monitoring with a second receiver). A higher audio buffer and especially a lower DSP buffer will make a difference: with audio buffer=512 and DSP buffer=4096 the Gate will not open on transmission. With audio buffer=2048 and DSP buffer=1024, the Gate will open after a delay, cutting off the first syllable at best. Changing the sound card sampling rate makes no difference. Lowering the system priority from High (my usual setting) makes no difference, it doesn't get worse. Hope this helps resolve this issue. 73 de Joe - AB1DO ----- Original Message ----- From: "Edwin Marzan" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; <FlexRadio@flex-radio.biz> Sent: Monday, January 08, 2007 13:58 Subject: Re: [Flexradio] Transmit euqalizer + Gate causes lock-up in SVN821 > Joe, > > Using the official latest realease 1.8.0, when I use the equalizer and the > noise gate I notice that CPU cycles shoot up and PowerSDR slows down > dramatically. The ptt is sluggish in both directions. Turn off the noise > gate and the response is back to its normal zippy self. > > I'm using an HP Media Center PC with 3.0Gig Pentium Processor, a gig of > RAM and a Delta 44 Sound Card. Our symptoms are not exactly the same but > there is definitely something going on that puts a drain on our systems > when the equalizer and noise gate are used together. > > > > Edwin Marzan > AB2VW _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com/ FlexRadio Knowledge Base: http://kb.flex-radio.com/
