hello, I found a simple way to interface sound applications with USRP and gnuradio; maybe it is already widely used, but I guess it is worth mentioning it - this method work provided that the application is able to get samples from file, my experience has been done with drm, that called with the option --fileio is able to get 16 bit integers from a file.
I created a tmpfs on my linux by adding this mount point to /etc/fstab: ramfs /mnt/ramfs tmpfs defaults 0 0 and then i issued the command "mount ramfs" then I created a pipe with the command "mkfifo /mnt/ramfs/drm.raw" The game is almost done - start drm with "drm --fileio /mnt/ramfs/drm.raw" and start your python code providing a file sink with the same name as the pipe you created, in my case: ...omissis... out = gr.file_sink(gr.sizeof_short,"/mnt/ramfs/drm.raw") ...omissis... Maybe it's not going to work nicely for high sample rates, but it works lovely for this case as well as for gmfsk started in "demo" mode with the command: cat <your_pipe_in_tmpfs> | gmfsk --testmode MC _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
