No signals found in 2.1.1 AppImage #74
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Same with 2.1. |
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Well, 2.1(.1) added selectivity filter that should improve the reception but it also sets default BW on HW to 1530kHz. I have tested AppImage on my Ubuntu machine and I do not see any problem. Are there any interesting messages on stdout? Could you please share RAW file recording from 2.1.1 - the channel where signal should be and it is not?
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Looks like I need more help. I use rtl_tcp. Run a dab.sh with rtl_tcp -d0 -a127.0.0.1 -p 1235 -f177584000 before I start AcracaDABra. Can't connect using RAW file. |
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Is there any specific reason to go through rtl_tcp? But on the other hand rtl_tcp is not affected by change in the device bandwidth. I will try with rtl_tcp on my Ubuntu machine tomorrow. RAW file can be played Expert mode only - go to Settings -> Device -> Input device: Raw file -> Open file -> Connect. Then select any channel and the application starts to decode input stream. |
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Well I don't know how to enable using RTL-SDR device... |
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Common, it is the same way you have configured the app for rtl_tcp, go to Settings -> Device -> Input device: RTL-SDR -> Connect |
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I had similar issues even with my local transmitter. Please check the console output. It might say some index values. But I agree with Petr. There is no need to use rtl_tcp when the stick is plugged in to the same computer. |
Always get a "not connected". I was glad to make it at least running with rtl_tcp...
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I guess that you know that only one application can be connected to the device. It means when you are trying to connect from a AbracaDABra, the rtl_tcp server must not run. And what messages do you have in terminal when you trying to connect to RTL-SDR device? |
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Certainly I know that even though I may be a bit clueless. Here is the output:
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Soapy and CF32? |
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So I ought to do what? |
Switch to expert mode. Then you will be able to load recordings. |
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I did. Which recordings when 2.1 as well as 2.1.1 say they don't receive any signal? |
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Maybe also try to modify the ini file in order to use a different bandwidth setting. I fear the Noxon stick does not accept the bandwidth in your case. I have the same at home but can't test it now. |
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If you have Qt-DAB on your machine as well, you could try there and check the spectrum. |
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Hello guys, sorry for late response. I think we are diverging, so let's restart from the beginning. Preparation: You need to run this command before running the application (required only once after boot):
Application setup:
Test 1:
Please do the same check with both 2.0 and 2.1.1. Test 2: Change bandwidth value from 0 to 2000000:
And try the reception again. Note: It seems that Elonics E4000 tuner does not like default BW settings and it negatively imfluences signal quality - I will further investigate. Please let me know your results from test 1 and test 2. |
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I've tested with several dongles (all RTL Sticks with RTL-SDR input, not with Soapy), but I get audio on my normal channels (but lower SNR). My difficult muxes only play at certain times. compared to and to and to and to
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Back from a road trip. No signal with 2.1 and 2.1.1, 2.0 works with all 5 available channels. |
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Have you tried changing the bandwidth? |
Yes, I did. |
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RTL-SDR: Found 1 devices Found Elonics E4000 tuner RTL-SDR: Opening rtl-sdr device #0: Terratec NOXON DAB/DAB+ USB dongle (rev 2) RTL-SDR: Supported gain values 14 |
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OK, could you please share the RAW file recorded from the same channel with 2.0 and with 2.1.1? I want analyse what is going on - 30 seconds should be enough. |
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All three versions: when I choose 'raw file' and 'connect' I get a 'no device connected'. |
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You are probably trying to change device to Raw file, this is used to play the recorded raw file.
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Yep. My bad. How do I play the file? |
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You can play the file by going to Settings -> Raw file -> Open file -> (optional format - Unsigned 8bit in your case) -> Connect.
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This is what I get.
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Sorry - I forgot to mention that once you have Raw file connected, you can select any channel in main window and start decoding the file. |
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10D is the source of my recording, just a few kilometers away.
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Well, that is also interesting - then, have you tried the unmodified AppImage 2.1.1 downloaded from here? |
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Yes. I don't hear any sound when playing the raw file. Choosing a channel results still in no signal and I can't try any other channel because it's deactivated. Only after a new start I can select a different channel. |
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This is obviously audio output problem, but channel decoding seems to work. This part of the log says that you have selected service with sample rate 48kHz This line is error message from PortAudio - it seems that there is some issue with audio playback:
Application always uses default output device. There are many error messages from ALSA that indicate some error in audio device configuration in your system. Do you still use Mint 21.1? By the way - it seems you are running it as root, why? |
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Still 21.1, still some fine-tuning (as root). |
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I have tried on my Mint installation and some error messages seem to be expected but running it as root is a bad idea. Try to run it as regular user. In any case this seems to be a different issue - can you confirm that you have no problem with signal sync with 2.1.1 after re-installation of your system? |
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After a reboot there is no sound (anymore). No idea why. Have to fix it first. |
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The sound problem is solved. V19. |
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So it works now, correct? Or is there any problem not visible from the log? |
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AbracaDABra 2.1.1 plays the recording with libdabsdr.so.2.1.19 When I connect to RTL-SDR and choose a channel, nothing happens. Also with v2.0. Don't know why: I can't select a different channel than. It's deactivated now.
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Is there any message in the terminal? I would expect something like: |
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Maybe you try to set it permanently in grub, see OpenKinect/libfreenect2#807 |
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I made a tiny, one-line shell script to increase the allowed usbfs buffer size, but a control sequence ended up there, and therefore it didn't work. Yes, now I can listen to "live radio". @andimik Thx for the advice regarding grub. |
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OK, my understanding is that it works, so closing the ticket. |
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AbracaDABra-2.1.1-x86_64.AppImage still doesn't work... unfortunately. |
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I am very confused from the information you are sharing. In last post you wrote that you can listen to the "live radio". So in case you still need any support, please describe current status in detail. |
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I followed these instructions all the time (with the different libraries). https://github.com/KejPi/AbracaDABra/issues/74#issuecomment-1487037259 |
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Great, then what the status is? |
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It worked with that 'test' directory... Just as I was told. |
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OK< so in fact nothing has changed after reinstallation of Mint - 2.1.18 works but AppImage 2.1.1 does not work, correct? |
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Correct. |
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Does it work with this version? |
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Is it the same 2.1.19 as of Monday? The recording (* raw * . * ) works. But it won't connect to RTL-SDR (* dab * . * ). |
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Yes, it is the same as on Monday. Connection to RTL-SDR has nothing to do with library. Please try this AppImage https://www.dropbox.com/s/6vlgzwl615riew0/AbracaDABra-2.1.90-x86_64.AppImage?dl=0 |
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Yeah, it works. Great! Interestingly some signals have higher dB values - others (the weaker ones) not.
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Finally :-) I will use this library in next release. Can I close the issue now? |
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Yep. Thx. |
In 2.1.1 AppImage my Noxon DAB stick doesn't find any signals at all while there are four channels available in my region.
Switching back to 2.0 - everything works fine.
Yes, I deleted the *.ini file. No major changes in my Linux system (Mint 21.1 64bit), no recent kernel updates.
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