Bill, I found two things on my end that were causing this motorboating, shared firewire IRQ (with other devices) and a failure to reset the database each time I aquire a new SVN. Once I got into the habit of resetting the database upon downloading a new SVN, all is well here.
Russ AI4OH On Mon, Jan 18, 2010 at 9:45 PM, Bill Bordy, NJ1H <[email protected]> wrote: > I have previously lowered the sampling rate and the symptom decreases or > ceases. I am running a quad Q8200 CPU with no serious CPU utilization at the > sample rate I posted in the bug report. Do you notice motorboating at the > sample rate I listed? My question is still unanswered. > > I have not seen any response other than yours to the below question: > > I have been wondering if I am the only one seeing this. Has anyone used > these settings and they do not experience this? > > See below for full details of the bug report and settings. > > 73, > Bill > NJ1H > > > > On 1/11/2010 4:17 PM, Tim Ellison wrote: > >> 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. > -- r _______________________________________________ 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.
