[Discuss-gnuradio] Phase errors and expected behavior of in-flight samples when a flowgraph is reconfigured

2014-04-20 Thread Kevin Reid
I've seen three different intermittent misbehaviors in my application which can be described as parallel signal paths getting out of phase with each other. (For example, one of them is one stereo audio output channel being delayed from the other.) They all seem to occur when the flowgraph is re

Re: [Discuss-gnuradio] GNU Radio Live SDR Environment 2014-0419 snapshot released

2014-04-20 Thread Johnathan Corgan
On 04/20/2014 11:19 AM, jeff millar wrote: > Does the live CD run in a Virtualbox VM? It starts, but seems to hang > the whole OS after trying almost anything. > > I'm trying this under Ubuntu 14.04. It should be fine. Much of the testing of the image is done by booting it under virtualbox. I

Re: [Discuss-gnuradio] GNU Radio Live SDR Environment 2014-0419 snapshot released

2014-04-20 Thread jeff millar
Hi John... Does the live CD run in a Virtualbox VM? It starts, but seems to hang the whole OS after trying almost anything. I'm trying this under Ubuntu 14.04. jeff On 04/20/2014 12:55 PM, Johnathan Corgan wrote: The GNU Radio Live SDR Environment has been updated with a snapshot of the la

[Discuss-gnuradio] GNU Radio Live SDR Environment 2014-0419 snapshot released

2014-04-20 Thread Johnathan Corgan
The GNU Radio Live SDR Environment has been updated with a snapshot of the latest master branch version of GNU Radio, two new third party SDR applications, and corrections for hardware support of RTL-SDR dongles and some older Ettus Research USRPs. Produced by Corgan Labs, the Live SDR Environment

Re: [Discuss-gnuradio] Error trying to load FFT filter taps

2014-04-20 Thread Tom Rondeau
On Sun, Apr 20, 2014 at 12:24 PM, Tom McDermott wrote: > Thanks, Tom that solved the problem. > > numpy.fromfile('filename', numpy.complex64).tolist() > > Should the gnuradio wiki (GRC) text be updated? > > Apologies for the triple posting, first two attempts were using yahoo.commail > account

Re: [Discuss-gnuradio] Error trying to load FFT filter taps

2014-04-20 Thread Marcus Müller
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Strange: For me, the problem persists (at least with random dummy data from a random file in /tmp): >>> taps = numpy.fromfile("/tmp/tblatex-4.png", dtype=numpy.complex64).tolist() >>> fffilter = filter.fft_filter_ccc(1, taps ,1) Traceback (most recent

Re: [Discuss-gnuradio] Error trying to load FFT filter taps

2014-04-20 Thread Tom McDermott
Thanks, Tom that solved the problem. numpy.fromfile('filename', numpy.complex64).tolist() Should the gnuradio wiki (GRC) text be updated? Apologies for the triple posting, first two attempts were using yahoo.commail account, got bit by the yahoo DMARC problem and dumped from the list. Changed

Re: [Discuss-gnuradio] Error trying to load FFT filter taps

2014-04-20 Thread Tom Rondeau
On Sat, Apr 19, 2014 at 1:27 PM, Tom McDermott wrote: > Am getting the following error when trying to run a GRC flowgraph that > loads FFT filter taps from an external file. The type filter parameter is > set to complex->complex (complex taps). > The flow graph has imported numpy. The taps are l

Re: [Discuss-gnuradio] dvb-t project with two USRPN200 devices failure

2014-04-20 Thread Nasi
Not actually, not possible. I tested today. It does not receive anything. Thu, 17 Apr 2014 15:53:39 -0700 от Ron Economos : >Yes, it's possible. The use of the rational re-sampler >is to be compatible with commercial DVB-T receivers. >If you're just interested in USRP to USRP, then it's >okay to