Lower your sampling rate and see what happens.
-Tim -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bill Bordy, NJ1H Sent: Monday, January 11, 2010 12:09 PM To: [email protected] Subject: Re: [FlexEdge] pb-pal new features vs performance? I filed a bug report that seems similar to this. The bug report is http://support.flex-radio.com/ReviewBug.aspx?id=2604&it=B Report Detail: If MultiRX selected, multiple receive works correctly. If NR selected with MultiRX enabled then a motorboating sound occurs. This did not occur on v1.18.3. 2048 buffer size 192k sample rate DPCs are below 500 usec with NR select. Quad Q8200 CPU. FireWire driver is 3.5.0.7171 Firmware 2.0.0.3 PowerSDR PB v1.19.3 SVN:3444 on title bar TortoiseSVN reports revision 3462 I have been wondering if I am the only one seeing this. Has anyone used these settings and they do not experience this? 73, Bill NJ1H On 1/11/2010 8:42 AM, Jeff Anderson wrote: > Thanks, Dudley. > > The audio buffer is already at 2048. > > Here's some more information: > > With pb-pal: > > 1. At a 192 KHz sample rate and 2048 buffer, I get lots of audio hits > when I turn On /either /ANF /or/ NR /or/ MultiRX. > 2. I still get significant hits (although at a less frequent rate), > if I turn the Display Update rate down to 1 Hz. > 3. At a 96 KHz sample rate and 2048 buffer, I get significant audio > hits if I turn On ANF /and/ NR, or ANF /and /MultiRX, even with the > Display Update rate turned down to 1 Hz. > > With 1.18.4 svn 3432: > > 1. At a 192 KHz sample rate and 2048 buffer, audio sounds fine with > /both /ANF /and /NR turned On (even though the CPU utilization > percentage is up around 60-70%). I only start getting hits if I have > ANF /and /NR /and/ MultiRX all On. (And under this condition the CPU > utilization display freezes.) > > For my PC, I'm using the Dell computer that I purchased from Flex when > I bought my SDR1K ('06?): > > * Pentium 4 CPU, 3.02 GHz. > * 512 MB RAM > > So, I'm wondering what might be the cause of this degradation in > performance and if there's anything I can do to fix it (either in my > PC (do I need more RAM? Or a new PC?), or in SW). Regarding the > software, apart from the addition of Pretty Betty and PAL, I don't > know what else has changed in the code and thus what might be > contributing to this problem -- changes in DttSP, for example? It's > difficult for me to tell from the SVN log, because I don't know if the > changes logged for the pb-pal development correlate exactly with the > SVN log for the non-pb/pal console, and I can no longer access the SVN > log for the non pb/pal console. > > - Jeff > > > > > > Dudley Hurry wrote: >> Jeff, >> >> Not sure on the audio popping unless the added CPU load is causing so >> additional delays, you may need to raise your buffer in the Audio >> tab. You should not need to change the FW driver as the Audio tab >> change should change the FW buffer, just like the sample rate is >> controlled from PowerSDR.. Try raising the audio buffer slightly . >> Also as the old saying goes for all Alpha code, " Your mileage may >> vary!" >> >> 73, >> Dudley >> >> WA5QPZ >> FlexRadio Systems >> >> (512) 250-8595 >> Email: [email protected] <mailto:[email protected]> >> Web: www.flex-radio.com <http://www.flex-radio.com> >> >> "Tune in excitement!" (tm) >> >> >> >> On Sun, Jan 10, 2010 at 11:37 AM, Jeff Anderson >> <[email protected] <mailto:[email protected]>> wrote: >> >> I've just downloaded and tried the pb-pal console. Very nice! >> But, I'm having an issue with it, which is: when I click on the >> MULTIRX button, I get significant popping and crackling which are >> exacerbated whenever I move my mouse. >> >> I notice that CPU percentage has jumped up about 10% points >> between the Console I had been using (1.18.4, rev. 3432) and the >> pb-pal console, and I was wondering...what features in this new >> Console account for this increase in CPU usage? Does anyone know? >> >> Thanks! >> >> - Jeff >> >> _______________________________________________ >> Flexedge mailing list >> [email protected] <mailto:[email protected]> >> http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz >> This is the FlexRadio Systems e-mail Reflector called FlexEdge. >> It is used for posting topics related to SDR software development >> and experimentalist who are using alpha and beta versions of the >> software. >> >> > _______________________________________________ > Flexedge mailing list > [email protected] > http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz > This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is > used for posting topics related to SDR software development and > experimentalist who are using alpha and beta versions of the software. > _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using alpha and beta versions of the software. _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using alpha and beta versions of the software.
