Where is the value of top.swch.fade -- that's essentially the TRX crossfade time, in samples -- being set? In the PowerSDR code I can trace it back through setup_switching() to setup() but haven't been able to find the call to setup() :-)
73 Frank AB2KT Tom Thompson wrote: > Bob and Eric, > > Under careful scrutiny, the pop is there with the new release with > settings of 48000 and 2048, but it is reduced. I think that it is so > fast that the 48000 sampling rate does not catch it all the time or at > least at as great an amplitude. > > Tom > > Tom Thompson wrote: > > >>Bob and Eric, >> >>I reduced the dma buffer size on the Delta 44 to 512 as suggested. This >>fixed the flutter, but the pop is still there on all audio tab settings >>except 2048 and 48000. None of this occurs on svn 537 even with the dma >>buffer set to 2048. >> >>Tom W0IVJ >> >>Robert McGwier wrote: >> >> >> >> >>>In the task bar, on the bottom right, there is a little black >>>trapezoidal looking M for your M-Audio control panel. It should on >>>the task bar over by the clock. Double click on it. There is a DMA >>>buffer size setting there. If it is larger than 512, please >>>decrease it to 512 and try this again. >>> >>>This all probably needs better documentation than we currently have. >>>We really did do major league surgery on the way things worked by >>>removing a few unnecessary lines of protection. This in turn revealed >>>other levels of poor coding on our part. There may still be a >>>"easter egg" or two we need to remove! >>> >>>Bob >>> >>> >>> >>>Tom Thompson wrote: >>> >>> >>> >>> >>>>Bob, >>>> >>>>I am using the Delta 44 card with the buffer size on the audio tab >>>>set to 2048. The sampling rate is 96000 and the manual latency is >>>>unchecked. My dsp buffer is 2048. I found that on the new release >>>>that if I decrease the buffer size on the audio tab below 2048 the >>>>audio flutters. If I decrease the sampling rate to 48000 the flutter >>>>frequency halves. The only combination of sampling rate and buffer >>>>size that I get no pop and no flutter is 48000 and 2048. I get audio >>>>flutter on any buffer size below 2048 at either 96000 or 48000. >>>> >>>>On 1.6.2 svn 537, the audio never flutters, and I have to decrease >>>>the buffer to 256 at 48000 for the pop to occure. It will not pop at >>>>256 with the sample rate at 96000. >>>> >>>>I hope this helps. >>>> >>>>73, Tom W0IVJ >>>> >>>> >>>> >>>> >>>> >>> >>> >>> >> >> >>_______________________________________________ >>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 >> >> >> >> > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > /pipermail/flexradio_flex-radio.biz/attachments/20060627/16bd429d/attachment.html > > _______________________________________________ > 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 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
