Huh, good question, I just use CTRL-C for GR programs launched from the terminal, and had no issues with hardware. If you set the GRC option block to NO GUI, I don't recall if it even runs the flow; it may just generate the top_block.py and you must manually launch from the terminal.
In general, you don't want a peak value of 1.0 into any hardware sink; need to back it off some. Anyway: http://gnuradio.org/redmine/projects/gnuradio/wiki/TutorialsWritePythonApplications "That's all there is to create a flow graph. The last 5 lines do nothing but start the flow graph (line 22). The try and except statements simply make sure the flow graph (which would otherwise run infinitely) are stopped when Ctrl+C is pressed (which triggers a KeyboardInterrupt Python exception)." Lou Thomas Early wrote > Thanks much Lou. That was my problem. > > I thought I saw in a Ossmann sdr video that we were always suppose to use > the > big red x. I'll have to go back and watch again. > > How do I stop a flow graph that only has an audio sink and no gui sink? > > Did I miss a link to a "intro to grc" tutorial? It took me a while to > figure > out an audio sink max is 1.0. -- View this message in context: http://gnuradio.4.n7.nabble.com/trouble-reexecuting-a-microphone-audio-source-tp51603p51622.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