Hi Chris - A few comments, more than anything else: * You're generating 2 sinusoids then pushing them directly into the audio sink. You're not guaranteed that the audio sink can support 2 input channels, even if it seem to be able to. If the audio sink is working, it will always support at least 1 channel.
==> Use an "add" block to sum them into a single audio stream. * The sinusoids are at 0.5 amplitude ... which may or not be enough for your specific audio system. ==> Add a "Multiply Const" block to get the levels audible. (or 2 of them if you insist on using 2 audio streams). Use a Qt GUI Range slider set between 0.0 and 1.0 to set the gain for any Multiple Const block in use. * At least in my testing, the buttons in the top don't work, but some of the radio buttons do. Note that the "no tone 0 Hz" seems to be the same as "1209 Hz" ... note that Audio -does- come out for me using the GRC script. Since I'm currently using GR38 & your Python script is for GR37, it's non-trivial to get the Python script going ... so, hope this helps! - MLD On Mon, Aug 26, 2019, at 1:22 PM, Chris Gorman wrote: > Hi Michael, > > Here's the original .grc file. Thanks for your help. > > Chris _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
