Tim, It probably is at 48000 s/s and a 4096 buffer. I did some work on measuring filters earlier. If you like, I will email you a copy of Spectrogram 5.7 which is the last free program, and you can verify it. It works well with VAC 4.x
Chas, WiCG At 11:25 AM 4/28/2007, Tim Ellison wrote: >On the web page, it states that the filter shape factor for a 500 Hz >filter is 1.35:1 and a 2.6 KHz filter is 1.06:1. But I believe that >these values were taken at 48K sampling rate with a 1024 DSP filter. > >I don't have a scope or a signal generator to check this, so I am asking >if anyone has done (or would consider doing) an analysis of the filter >shape factor with different DSP buffer sizes and sampling rates? I >would be very interested in seeing how the shape factor varies with >these parameters at a 500 Hz and 2.6 KHz filter width? > >-Tim, W4TME >----- > > > >_______________________________________________ >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 Knowledge Base: http://kb.flex-radio.com/ >FlexRadio Homepage: http://www.flex-radio.com/ _______________________________________________ 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 Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
