[Discuss-gnuradio] Occasional choppiness/underruns (aUaU) with FCDPP->GRC->Pulse

2014-04-05 Thread Chuck Ritola
Hello list, I need some help. When running GRC 3.6.1 I am getting a problem with occasional choppiness in my audio output. Details: * The choppiness sounds like only part of the buffer is filling, similar to the sound you get when a filmstrip's playback gets unstable and you get that 'jitter' * T

Re: [Discuss-gnuradio] Occasional choppiness/underruns (aUaU) with FCDPP->GRC->Pulse

2014-04-07 Thread Chuck Ritola
tional computational load by specifying the hardware alsa device in the alsa sink ("aplay - -L" should list candidates)? I don't actually know if much changed in alsa_sink, but you might want to update your GNU Radio installation to 3.6.5 or even take the API change and switch to

[Discuss-gnuradio] FM Stereo decoder, frequency doubler, IIR issues

2013-04-24 Thread Chuck Ritola
Hi list, I just got started with GNU Radio Companion for use with my FCDPP and it's been great, already am decoding FM stereo and it sounds very good. However it probably isn't the most optimal way to do it: My filters are the inbuilt bandpass - they're a bit hard on the CPU and was hoping to use

[Discuss-gnuradio] IIR filter

2013-04-25 Thread Chuck Ritola
Does anyone have a working example of the IIR filter block in GNU Radio Companion that I can see, and the filter designer app, table, or equation which generated the coefficients? The GRC documentation states "fftaps and fbtaps must have equal numbers of taps", however biquad IIRs traditionally ha

[Discuss-gnuradio] Transient gate for variables in GRC

2013-04-26 Thread Chuck Ritola
Hi list Does there exist a way to gate integer variable update events in GRC if their values aren't changing? Example: Function Probe 10hz -> my_var -> 1, 1, 1, 1, 1, 1, 1, ... etc Probe is sending update events even if value passed to myVar doesn't end up changing, as a result the desti

[Discuss-gnuradio] Which ATSC tuner dongles/cards are available for use in GNURadio?

2013-07-24 Thread Chuck Ritola
What ATSC (6MHz wide) tuners are available to work with GNURadio? Is there a simple HDTV tuner/ADC capable of sending I/Q data to GNURadio to demod in software? I'd use a USRP except the budget is in the sub-$200 range. Thanks for reading ___ Discuss-gnu