I often "speed up" the playback of large recordings by adjusting the throttle only. In the throttle block, I just multiple the recorded sample rate by a factor (say 10) to get increased playback speed. Don't change any other blocks' parameters - just the throttle.
Very Respectfully, Dan CaJacob On Mon, Dec 30, 2013 at 4:52 PM, Paul B. Huter <paul.b.hu...@gmail.com>wrote: > Tom: > > What would you recommend if my data was recorded at 50M for about 15 > seconds and I would like to double to playback time with a throttle. If I > set the throttle to 25M, would that do the trick, or is it more complicated > than that? I'm waiting for a new shipment of RAM, and once I have that I > will be able to play around with things, but I just thought I would query > the group to get a good starting point. > > Thanks. > > > On Mon, Dec 30, 2013 at 8:52 AM, Paul B. Huter <paul.b.hu...@gmail.com>wrote: > >> Sounds good, thanks. >> >> Paul B. Huter >> On Dec 30, 2013 8:51 AM, "Tom Rondeau" <t...@trondeau.com> wrote: >> >>> On Thu, Dec 26, 2013 at 5:31 PM, Paul B. Huter <paul.b.hu...@gmail.com> >>> wrote: >>> > Is there a way to slow the playback of a data file through an FFT >>> Sink? If I >>> > recorded at 50M and I set my FFT rate to 25M, would that result in >>> playback >>> > twice as long? >>> > >>> > Thanks. >>> >>> >>> No, the sample rate of the FFT sink is just for display purposes: it >>> sets the range of the x-axis and nothing more. >>> >>> If you want to slow down your display, assuming there is no hardware >>> in the loop, you can use a throttle block with a fairly low rate. >>> >>> Tom >>> >> > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >
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