Hi
a) Pls add an GPS connection for (Win) Pcs to record in a logfile the current Signal strength, Bit Error,... everything what the Software could output.
It would be very nice to collect a lot of logfiles from user who use it onboard a Car or Train, Bus,... to create a Map where the Signal/ Transponder is.

b) When a Map is created it would be very cosy to use the GPS Position to switch between the different Transponder/ Channel before the Signal get weak. (For example in the Boarder Regions and or in the Mountain)

c) It also would be nice to load a Transponder File into the System. In the most case the Channel /Transponder list is very static it would be nice.

d) It would ne nice when its possible to choose the SDR Dongle. In my case I have +2 Dongles in my System.

e) How about decoding the hole Transponder for Streaming? Is the technical possible with your knowledge about DAB(+)? Its would be nice to have an Streaming Server for the hole House.

QAudioDeviceInfo::availableDevices() will give you a list; for each of those, put deviceName() into a combobox. Let the user choose one, and then use this constructor:

AudioOutput = new QAudioOutput(device, AudioFormat, this);

The combobox wouldn't take up too much space on the settings pane.

It seems that the "Settings QML Type" is not working under Windows correctly.

Thanks a lot. The Appimage runs very well with Ubuntu 14.04.3. Little failor is time in the right upper corner shows 25:00h at 01:00h am

Best Regards

Seems in src/input/rawfiles/rawfiles.h you're still referring to ui_filereader-widget.h which is not existing.

Therefore, I cannot compile it.

If I comment out all lines (26, 48, 91, 138) pointing to rawfiles, then it works.

I'm owning an Airspy Mini and would still have the filereader (for sdr or raw files) integrated ...

Software version 20170311 installed ok on a Win7 64 bits system with Airspy connected.
During startup process Airspy is seen by program, but start gets interrupted.
Please see attached screenshot.
Any help appreciated.

Cornel

Recommendations from the airspy developer for CAirspy.cpp:

This code block should be simply replaced by:
my_airspy_set_samplerate (device, 4096000);
Why we do that? => https://github.com/airspy/firmware/blob/master/common/airspy_mini_conf.c#L239
Basically, you get 4.096 MSPS that you can decimate by 2 to get exactly 2.048 MSPS, which is friendlier than the “hack” you use to interpolate the fft bins.

Implement AGC and manual gain for airspy input.

When search and no reception results, no rescan is possible and application freezes.

[Suggestion] add a command line start parameter to start playing a certain station.

I've installed it under Windows but only the admin gets an entry in the start menu. For security reasons I have a normal user account and obtain admin rights for installations.

I received the following question by e-mail:

The first problem is in terms of definition of the graphic fonts that appearing all unstable and flickering...

Second: the channel searchs never ends successfully and completely missing the sound of channels found.

You already know the problem, from other guys?
I tried it on two different computers with my AirSpy R2 both with Windows7 32-bit.

welle.io uses OpenGL for the graphic output. I suppose there is some problem with your graphic card. Can you post the command line output?

Also the second problem can be related to the graphic problem because if you CPU load is to high due the graphic problem there is no space to decode DAB.

Which CPU and graphic card do you are using?

Although airspy support is shown as an optional installation, welle.io.pro won't compile on Linux Mint 18.1 if airspy.h missing. Build terminates with:

g++ -c -pipe -g -std=gnu++11 -Wall -W -D_REENTRANT -fPIC -DHAVE_AIRSPY -DHAVE_RTLSDR -DQT_QML_DEBUG -DQT_QUICK_LIB -DQT_CHARTS_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_QML_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -D_REENTRANT -I../welle.io -I. -I../welle.io -I../welle.io -I../welle.io/src -I../welle.io/src/ofdm -I../welle.io/src/backend -I../welle.io/src/backend/audio -I../welle.io/src/backend/data -I./src/backend/data/journaline -I../welle.io/src/output -I../welle.io/src/various -I../welle.io/src/input -I../welle.io/src/gui -isystem /usr/local/include -I../Qt/5.8/gcc_64/include -I../Qt/5.8/gcc_64/include/QtQuick -I../Qt/5.8/gcc_64/include/QtCharts -I../Qt/5.8/gcc_64/include/QtWidgets -I../Qt/5.8/gcc_64/include/QtMultimedia -I../Qt/5.8/gcc_64/include/QtGui -I../Qt/5.8/gcc_64/include/QtQml -I../Qt/5.8/gcc_64/include/QtNetwork -I../Qt/5.8/gcc_64/include/QtCore -I. -isystem /usr/include/libdrm -isystem /usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I../Qt/5.8/gcc_64/mkspecs/linux-g++ -o CInputFactory.o ../welle.io/src/input/CInputFactory.cpp
In file included from ../welle.io/src/input/CInputFactory.cpp:39:0:
../welle.io/src/input/CAirspy.h:44:30: fatal error: libairspy/airspy.h: No such file or directory
compilation terminated.
Makefile:12219: recipe for target 'CInputFactory.o' failed
make: *** [CInputFactory.o] Error 1
13:58:29: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project welle.io (kit: Desktop Qt 5.8.0 GCC 64bit)
When executing step "Make"
13:58:29: Elapsed time: 00:01.

I followed your build instructions for Ubuntu but received the error after adding the `welle.io.pro file

Unknown modules in Qt: qml quick charts multimedia

Any idea how to fix this ?

System:

• Linux Mint 18.1 which is based on Ubuntu 16.04

Dear Albrecht,

I made some sdr-recordings in Südtirol this weekend. But they are not working in welle.io

./welle-io -D rawfile -F /home/andreas/10c_dabmedia.sdr -B s16le

and I even get a seg fault here

Although sdr files seem to be s16le, I tried to load it as u8

./welle-io -D rawfile -F /home/andreas/10b_ras.sdr -B u8

Then you see a kind of spectrum (10B and 10D are used in Südtirol as well)

I had to convert them to rawfiles:

sox -e unsigned-integer -r 240000 -t raw -c 1 -b 16 /home/andreas/10c_dabmedia.sdr -t raw -e signed-integer -b 8 -r 240000 /home/andreas/10c_dabmedia.raw

Only then it worked.

Can you check if welle.io expects

unsigned-integer 2,4 MHz raw with 1ch and 16bit

as -B s16le?

The SNR calculation is not working if strong neighbour channels are available.

The original SDR-J code is hard to maintain. The idea is to replace this code with the code from dablin https://github.com/Opendigitalradio/dablin

A list with open tasks con be found here: https://github.com/AlbrechtL/welle.io/wiki/Open-Tasks

With enabled expert view the sound output failed sometimes. It seems that something goes wrong with the threads (all threads are calculated on one core).
Observed on Fedora 25.

I suggest to show the QPSK IQ constellation (the qt-dab program shows it):

Example from https://github.com/JvanKatwijk/qt-dab#features :

[UPDATED]
image from qt-dab program

Is using QtCreator the only way of building this? It seems so currently, the CMake build has gone. Perhaps create a Meson build? Having a way of creating this out of tree, from a command line, without the development environment is a must.

welle.io crashes of no OpenGL 2.0 graphic card is available.
It seems that opengl32sw.dll is missing in the setup https://github.com/AlbrechtL/welle.io/releases/tag/V20170311

InputFactory: Input device: "auto"
Airspy: Open airspy
Airspy: airpsy_open () failed: AIRSPY_ERROR_NOT_FOUND ( -5 )
RTL_TCP: Open rtl-sdr
RTL_TCP: No devices found
InputFactory: No valid device found use Null device instead.
Audio: ActiveState
create: Could not initialize EGL display: error 0x3001
create: When using ANGLE, check if d3dcompiler_4x.dll is available
Failed to load opengl32sw.dll (The specified module could not be found.)
Failed to load and resolve WGL/OpenGL functions
create: Could not initialize EGL display: error 0x3001
create: When using ANGLE, check if d3dcompiler_4x.dll is available
Failed to load opengl32sw.dll (The specified module could not be found.)
Failed to load and resolve WGL/OpenGL functions
GUI: AGC on
qml: dpiScaleFactor: 1
create: Could not initialize EGL display: error 0x3001
create: When using ANGLE, check if d3dcompiler_4x.dll is available
Failed to load opengl32sw.dll (The specified module could not be found.)
Failed to load and resolve WGL/OpenGL functions
create: Could not initialize EGL display: error 0x3001
create: When using ANGLE, check if d3dcompiler_4x.dll is available
Failed to load opengl32sw.dll (The specified module could not be found.)
Failed to load and resolve WGL/OpenGL functions
Failed to create OpenGL context for format QSurfaceFormat(version 2.0, options Q
Flags<QSurfaceFormat::FormatOption>(), depthBufferSize 24, redBufferSize -1, gre
enBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 8, sam
ples -1, swapBehavior QSurfaceFormat::SwapBehavior(DoubleBuffer), swapInterval 1
, profile  QSurfaceFormat::OpenGLContextProfile(NoProfile)) .
This is most likely caused by not having the necessary graphics drivers installe
d.

Install a driver providing OpenGL 2.0 or higher, or, if this is not possible, ma
ke sure the ANGLE Open GL ES 2.0 emulation libraries (libEGL.dll, libGLESv2.dll
and d3dcompiler_*.dll) are available in the application executable's directory o
r in a location listed in PATH.

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

Let's make it super simple for AppImage users to unload the kernel module and install a udev rule.

Please see JvanKatwijk/qt-dab#34, especially JvanKatwijk/qt-dab#34 (comment) for an idea - do you have a better one?

Sound problem under linux Manjaro x64, after some time sound is very dropped.

Dear DAB listeners, I would like to install Welle.io on my MACOSx, but I don't know how to start from, I'm not addicted to linux line commands, only copy and paste, is there any step-by-step guide?

Thankyou!

de audio drops sound if i listen to a station and brouwsing the web with firefox

During installation at 75% when is in qlm I've this error:
Error during installation process (com.vendor.product):
Execution failed(Unexpected exit code: 5100): "C\Program Files (x86)\welle.io/
vcredist-x86_2010.exe/quiet/norestart"

The reason is that the Visual C++ Redistributable 2010 installation failed.

It happens if VC is already installed.
OS: Windows 7 64bit SP1

The reason is documented here: https://bugreports.qt.io/browse/QTBUG-27953
The welle.io installer uses an outdated Visual C++ redistributable 2010 version.

This screenshot shows a newer version but welle.io uses version 10.0.3019

So I have a multiplex on channel 5C. Sometimes, during scanning, the program will try to scan channel 5B for long time and afterwards completely skip channel 5C and move on to 5D.

I am unable to reliably reproduce the issue, however it happens in around 30% of scans.

P.S. Any hints on how to make this bug report more useful are welcome!

I keep getting the problem:

PulseAudioService: pa_context_connect() failed

and a lack of audio. Is this that the CMake build is failing to do something during the build?

Found 11 channels. Out of 11 only 2 sound fine. Rest is garbles like old days so called "cooked mp3".
The 2 channels that work have + at the end of channel name, I'm not sure whether that is significant to the issue.
Please see attached video demonstrating the issue.
Thank You.
Tom.

https://www.youtube.com/watch?v=x5jJujLJepA

A user does normally not care about rawfile formats (BTW: welle-io was the first page to let me know the difference between *.sdr and *.raw file structure 👍 )

So it would be good to implement an autodetection between u8 and s16le.

Furthermore, welle-io's behavior in scanning is the same as for VHF, after pressing "Channel scan Start" 5A will be analyzed, but then suddenly the other channels (5B, etc.) follow. I would expect that only one channel is used.

Distributing the application as an AppImage can make easier the installation/execution under much more Linux Distributions.

I found another signal that looks like DAB but it's at around 44 Mhz, Can't search for it so I decided to do it via rawfile. Unfortunately I can't do it the way it is described in manual.
Any help would be apreciated.
It's latest windows10 version.

C:\Program Files (x86)\welle.io>welle-io.exe -D rawfile -F test.raw -B s16le
Unknown option 'B'.

Thanks. Tom.

If the manual gain slider is used the following errors occur.

qrc:/QML/SettingsPage.qml:134: TypeError: Property 'inputEnableAGCChanged' of object RadioInterface(0xc72d50) is not a function
qrc:/QML/SettingsPage.qml:141: TypeError: Property 'inputGainChanged' of object RadioInterface(0xc72d50) is not a function
qrc:/QML/SettingsPage.qml:141: TypeError: Property 'inputGainChanged' of object RadioInterface(0xc72d50) is not a function

Hi,

I have to machines with identical system Majnaro 64 bit, all packages are identical but on one of them I get this error: Project ERROR: Unknown module(s) in QT: charts multimedia
I don't know how to fix that, looks like something missing but I checked everything, all dependecies.
Maybe somebody know how...

Regards

Perhaps this can be useful, now and then, to start and stop audio recording.

At least on Fedora Rawhide, it seems both QtQuick.Controls and QtQuick.Controls2 are required for the UI to run. Is this correct?

If the user uses the command line parameter -D with the non-existing device (e.g. misspelling) welle.io crashes. A check for the device string is missing.

I can only get welle.io working here with manual gain (12,50 or so), which results in SNR 14dB.
AGC results in unreliable rx quality, and SNR decreases !

When increasing the manual gain, I can get a better SNR. When further increasing the gain, the SNR decreases. So there appears to be a problem with AGC.

Thanks for creating the first sdr based receiver that I was able to compile on my mac!

I was wondering what AAC profile the stations I'm receiving with my rtl_sdr dongle are using and ended up doing a quick proof of concept hack by adding the following line at the end of the fib_processor::bind_audioService function in fib-processor.cpp.

        qDebug() << "PS Flag=" << components[firstFree].PS_flag;

As expected all the stations I was able to receive in Bern, Switzerland had the PS flag set. Since PS seems to be unique to the aacPlus v2 profile I'm reasonably sure that everyone is using it given the debug output from my change.

I think displaying the used profile would be a nice enhancement to the expert mode but my C++/Qt fu isn't strong enough to write a proper patch. Would you consider adding such a feature? I think dablin displays this info, maybe it has more logic to really figure out the exact profile.

The implemented AGC failed for strong field signals.

Is it possible to build well.io.pro without having to install MacPorts? I prefer Homebrew but Homebrew can't find fftw-3-single. Proceeding without it results in the expected compile error:

../src/various/fft.h:42:10: fatal error: 'fftw3.h' file not found

Hi, After having probs with Windows version I gave it a try on Linux.
Audio is horribly broken and I get this repetitive message printed in thousands of lines.

fib-processor: we found for "RTE 2FM + " serviceId 8802
DABConstants: Unknown language type
dab-audio: we have now DAB+
Warning: No standard extension payload allowed in DRM
Audio: Sample rate 48000 Hz
Audio: ActiveState
Warning: No standard extension payload allowed in DRM
Warning: No standard extension payload allowed in DRM
Warning: No standard extension payload allowed in DRM
Warning: No standard extension payload allowed in DRM
Warning: No standard extension payload allowed in DRM
Warning: No standard extension payload allowed in DRM
Warning: No standard extension payload allowed in DRM
Warning: No standard extension payload allowed in DRM

I am using Windows 7. I get a message "shader program not linked" What should I do?

Apklinl

It seems that DAB is not working.
Tested with an odr-dabmod generated file.

Doing a tuning over all the DAB channels takes a long time. DVB is similar. DVB have the idea of transmitter to limit the number of channels search for stations. This will not work the same for DB because of the way transmitters are handled. However countries do have limitations on which channels are used for DAB. If there was a notion of a country tuning file to restrict the tuning ranges, tuning would be a lot quicker. I believe commercial DAB radios do something along these lines.

Hi, first I wanted to thank you. welle.io is awesome !
My suggestion is to add a volume slider and optionally a mute button.

Use case : Change the volume independently of the system's mixer. For example pulseaudio/pavucontrol does not remember the app's volume because Qt generates a new name every launch like QtPulseAudio:4567. Thus you can't currently adjust the sound across runs.

A volume slider would resolve this problem.

Similar problem : https://sourceforge.net/p/wsjt/mailman/message/34166846/
QT issue : https://bugreports.qt.io/browse/QTBUG-32842

Hi,

can I install well.io by macports like gnuradio? Or is there a pre-compiled package that runs on a mac?

Thanks in advance :-) Keep up good work !!!

Best,
adamkk

I wanted to install the new version, but then I had to uninstall the old version as the path already existed.

Currently there are some stations here audible with very high pitched audio and with dropouts. Another station on that same ensemble sounds fine. I suspect it's the difference in AAC profile but I'm not sure. (Edit: nope, I'm wrong about the AAC profile. It's the sample rate...)
It's ensemble 11B (MTVNL), transmitter Markelo, The Netherlands. The reception here in Zwolle is weak but good.

Here is some information about the versions of the dependencies on my system, maybe it helps:

• fftw: stable 3.3.6-pl2
• faad2: stable 2.7
• librtlsdr: stable 0.5.3
• libusb: stable 1.0.21
• airspy: stable 1.0.9 (don't know if that's getting used by welle.io - I didn't enable it)

System info:

Darwin iMac-van-Hans-van-Eijsden.local 16.5.0 Darwin Kernel Version 16.5.0: Fri Mar  3 16:52:33 PST 2017; root:xnu-3789.51.2~3/RELEASE_X86_64 x86_64

Newest MacOS Sierra, 10.12.4 (16E195). Newest welle.io from git, compiled with this Qt Creator version:

Here's NH Radio, sounding good without problems:
NH_Radio_Good.mp3.zip


Here's HotRadio Hits, sounding bad with high pitch and dropouts:
HotRadio_Hits_Bad.mp3.zip


And here's BBC Worldservice, also sounding bad with that high pitch and those dropouts:
BBC_Worldservice_Bad.mp3.zip


Information about the problematic ensemble: http://radio-tv-nederland.nl/dab/mtvnl-11b.html
All the other > 50 stations here are sounding perfect. Just let me know if you need more info. I'm happy to help!