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Tom Hayward tom@tomh.us [op25-dev] op25-dev at yahoogroups.comOn Tue, Oct 17, 2017 at 2:34 PM, gnorbury at bondcar.com [op25-dev] <op25-dev at yahoogroups.com> wrote: > More command line options are needed: > -O Loopback:0,0 -V -2 -U Thanks, I must have missed that detail with the conversion to rx.py. I already have -2, but not -V and -U. This fixed it. I'm getting audio through the loopback now! > Make sure you see an entry in the log file that says "audio device: Loopback:0,0" or whatever alsa device you are using. I don't see this line in the output. I also haven't specified a log file. Is there a default log path? Is this something I should expect to see in stdout or stderr? > In reality you're probably better off making sure op25 plays audio through the default device before you worry about getting it going through the loopback. I tried that, but virt-manager isn't even passing the speaker test audio, so I think that's a lost cause. There is no physical sound output on this system. > As a secondary recommendation, the alsa buffering is considerably better in the version of sockaudio.py found in my github repo. I suggest you upgrade to that version as it has other fixes too. It's unclear to me what sockaudio.py does and how I would use it with darkice. Is there an example of this somewhere? I tried your repo, but got an error, so I went back to max: tom at stream:~/op25/op25/gr-op25_repeater/apps$ git status HEAD detached at boatbod/master Untracked files: (use "git add <file>..." to include in what will be committed) ../../../build/ ss911_tacoma.tsv ss911_tgs.tsv nothing added to commit but untracked files present (use "git add" to track) tom at stream:~/op25/op25/gr-op25_repeater/apps$ ./rx.py --args rtl=0 -N LNA:42 -f 774081250 -S 1320000 -v 5 -2 -T ss911_tacoma.tsv linux; GNU C++ version 4.8.2; Boost_105400; UHD_003.005.005-0-unknown gr-osmosdr 0.1.1 (0.1.1) gnuradio 3.7.2.1 built-in source types: file osmosdr fcd rtl rtl_tcp uhd hackrf bladerf rfspace Using device #0 Realtek RTL2838UHIDIR SN: 00000001 Found Rafael Micro R820T tuner gain: name: LNA range: start 0 stop 0 step 0 setting gain LNA to 42 supported sample rates 250000-2560000 step 24000 Exact sample rate is: 1320000.047207 Hz set_center_freq: 774081250 Using Volk machine: sse4_2_64_orc Traceback (most recent call last): File "./rx.py", line 671, in <module> tb = p25_rx_block() File "./rx.py", line 220, in __init__ self.open_usrp() File "./rx.py", line 606, in open_usrp self.__set_rx_from_osmosdr() File "./rx.py", line 542, in __set_rx_from_osmosdr self.__build_graph(self.src, capture_rate) File "./rx.py", line 283, in __build_graph symbol_rate = self.symbol_rate) File "/home/tom/op25/op25/gr-op25_repeater/apps/p25_demodulator.py", line 173, in __init__ self.lpf = filter.fft_filter_ccf(decimation, lpf_coeffs) AttributeError: 'module' object has no attribute 'fft_filter_ccf' Tom -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/op25-dev/attachments/20171017/5e6ac0f2/attachment.htm>