Probably should qualify that to say "highest acceptable frame rate within the capabilities of the PC." Wouldn't that actually be what we are seeking?
On Tue, Apr 5, 2011 at 10:38 AM, dan edwards <[email protected]> wrote: > I thought the idea was to use the lowest acceptable frame rate to minimize > cpu / L2 cache loading ?? even on med speed cw, 15 fps seems to show > everybody... > > 73, w5xz, dan > > --- On Tue, 4/5/11, Brian Lloyd <[email protected]> wrote: > > From: Brian Lloyd <[email protected]> > Subject: [Flexradio] panadaptor update rate (frame rate) > To: "FlexRadio reflector" <[email protected]> > Date: Tuesday, April 5, 2011, 2:14 PM > > I saw where someone posted about running the panadaptor at 50 fps. The > maximum frame rate depends on the sample rate and how you set your buffers. > > For example, if you are using 2048 samples per DSP buffer and a sample rate > of 96kHz the maximum frame rate is 96000/2048 or 46.85. The maximum frame > rate that will not produce the momentary-pause effect (caused by displaying > the same FFT frame twice) is just under the calculated maximum or 46 fps. > > I normally run a sample rate of 96kHz and a DSP buffer size of 4096. I am > looking for very weak but long-duration-symbol signals (WSPR, JT65, > Olivia). > That limits my maximum frame rate to 23fps. > > -- > Brian Lloyd, WB6RQN/J79BPL > 3191 Western Dr. > Cameron Park, CA 95682 > [email protected] > +1.767.617.1365 (Dominica) > +1.931.492.6776 (USA) > (+1.931.4.WB6RQN) > _______________________________________________ > FlexRadio Systems Mailing List > [email protected] > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > Knowledge Base: http://kc.flexradio.com/ Homepage: > http://www.flexradio.com/ > _______________________________________________ > FlexRadio Systems Mailing List > [email protected] > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > Knowledge Base: http://kc.flexradio.com/ Homepage: > http://www.flexradio.com/ > _______________________________________________ FlexRadio Systems Mailing List [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
