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Tom Hayward tom@tomh.us [op25-dev] op25-dev at yahoogroups.comOn Tue, Oct 17, 2017 at 7:45 PM, gnorbury at bondcar.com [op25-dev] < op25-dev at yahoogroups.com> wrote: > > > Addendum: the filter error is something I saw once before. For some > unknown reason your version of gnuradio does not have the fft_filter_ccf() > routine, so you are forced to use fir_filter_ccf() instead. Max's code > uses the FIR version by default, but I'd changed mine to use FFT because it > was much more cpu-efficient for the lightweight hardware such as Rasp PI 3. > > You can edit the p25_demodulator.py file, line 173 and change 'fft' to > 'fir' and it should work on your system. > Lower CPU usage sounds nice. I'd like to take advantage of it. My installation has the Ubuntu 14.04 gnuradio package (having followed these instructions: http://op25.osmocom.org/trac/wiki.=/wiki/InstallInstructionsPage#InstallInstructions). Is there a different distribution or gnuradio package you recommend to get fft_filter_ccf()? Tom -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/op25-dev/attachments/20171018/ed9a9cac/attachment.htm>