Ok, would a faster computer help? I am running the receiver on a 2008 Macbook air, might be a bit slow for modern standards.
On Fri, Aug 9, 2013 at 4:13 AM, Marcus Müller <[email protected]> wrote: > Hi, > your warning points to the UDP source: Since your receiver can't process > all the samples that it gets > via UDP, and the UDP source runs out of buffering capacity, it starts to > drop UDP packets. > > There are two things that you must do: > 1) The Samples for the audio sink _must_ be resampled to the right sound > card sampling rate, > e.g. 44.1kHz, otherwise that card will see a highly frequency-shifted > version of the real signal > 2) take care that the samples from the network get processed fast enough > so that there will be no dropping. > > Best Regards > Marcus > > Am 08.08.2013 18:09, schrieb Iain Young, G7III: > > Different parts of the flow graph can have different sample rates. >> >> You need to use the rational resampler so it's output matches what >> your soundcard expects. >> >> You may also need a complex to real somewhere. There are plenty of >> examples for a FM receiver on the web. >> >> >> Best Regards >> >> Iain >> >> On 08/08/13 16:56, Vanush Vaswani wrote: >> >>> How can I set the sampling rate on both ends to be the same? FCDPP >>> sampling rate is 192 KHz. >>> >>> If I include an audio sink, is the rate of the flowgraph controlled by >>> the sound card sampling rate? >>> >>> Attached are my .grc files. >>> >>> >>> On Thu, Aug 8, 2013 at 11:34 PM, Alexey Bazhin <[email protected] >>> <mailto:[email protected]>> wrote: >>> >>> Do you set sampling rate 192000 on both ends? Post your grc files. >>> >>> On Thu, 8 Aug 2013 14:09:42 +1000 >>> Vanush Vaswani <[email protected] <mailto:[email protected]>> wrote: >>> >>> > Hi there, >>> > >>> > I'm trying to stream the FCDPP over UDP to a another computer >>> > The setup is as follows >>> > >>> > FCDPP Source -> UDP Sink >>> > >>> > For the receiver, >>> > >>> > UDP Source -> LPF -> Quadrature demod -> FM Deemph -> LPF -> Audio >>> > sink >>> > >>> > Unfortunately, when I run the flowgraph on the receiver end, I >>> only >>> > hear a bunch of clicks. >>> > The console is full of messages "WARN: Too much data; dropping >>> > packet.". WX GUI FFT Sink and Waterfall seem to work, though with >>> the >>> > same messages. >>> > >>> > Any hints to rectify this issue? >>> >>> >>> -- >>> Alexey Bazhin <[email protected] <mailto:[email protected]>> >>> >>> >>> >>> >>> ______________________________**_________________ >>> Discuss-gnuradio mailing list >>> [email protected] >>> https://lists.gnu.org/mailman/**listinfo/discuss-gnuradio<https://lists.gnu.org/mailman/listinfo/discuss-gnuradio> >>> >>> >> >> ______________________________**_________________ >> Discuss-gnuradio mailing list >> [email protected] >> https://lists.gnu.org/mailman/**listinfo/discuss-gnuradio<https://lists.gnu.org/mailman/listinfo/discuss-gnuradio> >> > > > ______________________________**_________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/**listinfo/discuss-gnuradio<https://lists.gnu.org/mailman/listinfo/discuss-gnuradio> >
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