See my note about dynamic recording of file names: http://rfpoweramp.wordpress.com/category/sdr/gnu-radio/
The file sink is either being directed to "filename" or "/dev/null". You can dynamically change that during the flow with a boolean check box. In your case, instead of the check box, you would setup a probe to monitor your integer, and maybe probe at 10 times a second, which would change the file name. The actual "filename" is a python statement that concatenates the system time and other info into a formatted string. I'll post an example GRC file tonight that shows the dynamic recording with time stamped file. I'm going to try the ARRL Frequency Measurement test tonight, and wrote a GRC flow with that functionality (not the probe part, but I'm using probes to display the channel power). Lou KD4HSO Staffan Bruce wrote > Hello, > > Being limited in my programming skills, I would very much like to do the > following in Gnuradio Companion: > > * Sample an input stream (from RTL-SDR) > * Generate a trigger signal based on the input stream > * If a trigger criterion is met, save/sink the data stream for a preset > time and give the file a name based on time of acquisition (or similar) > * Reset the flow and start all over. > > Getting the input stream is no problem and I believe I know how to > generate the trigger signal, but starting a sink (with a new filename) for > a preset time (number of samples is fine) based on this signal seems > tricker (not to mention the file naming part). > > If anyone can provide suggestions for how to > * start a new sink (new file) based on an integer signal shifting from 0 > to 1 > * automatically name each file sequence, sequential numbering is OK > > this would be very much appreciated! > > Many thanks in advance! > > Regards, > Staffan > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@ > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio -- View this message in context: http://gnuradio.4.n7.nabble.com/GRC-Recording-chunks-of-spectrum-triggered-on-input-signal-level-tp51302p51305.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
