welle.io DAB/DAB+ reception application

[Albrecht Lohöfener]

Hi all,

I'm proud to introduce a new open source DAB/DAB+ reception application welle.io (https://www.welle.io).

This program is also great to test your DAB broadcasting set up without having a dedicated broadcast hardware (https://www.welle.io/devices/rawfile).

If you have questions please open an issue at the welle.io github page (https://github.com/AlbrechtL/welle.io).

Bye, Al

Ps. welle.io has a modern easy to use GUI. It is fork of dab-rpi and sdr-j-dab which is now qt-dab http://github.com/JvanKatwijk/qt-dab and uses also code from the dablin project https://github.com/Opendigitalradio/dablin.

[Francesco Berti]

Does it work on windows 7?

[Albrecht Lohöfener]

I think so, but I didn't test it. Please report if welle.io is working on Windows 7.

Am 15.03.2017 um 10:39 schrieb Francesco Berti:

Does it work on windows 7?

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[Francesco Berti]

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"

[Albrecht Lohöfener]

Thanks for the report. I opened a new issue
(https://github.com/AlbrechtL/welle.io/issues/15). Which Windows version
did you try? Windows 7? 32-bit or 64-bit?

[Peter Whisker]

I ignored this as I already have VC++ installed.

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[Francesco Berti]

Windows 7 64bit sp1

[888...@gmail.com]

On Linux Manjaro I have sound problems, many dropouts and compilation problems on other machines with same Linux eg.

Project ERROR: Unknown module(s) in QT: charts multimedia

[Russel Winder]

On Tue, 2017-03-14 at 22:53 +0100, Albrecht Lohöfener wrote:
>
[…]

> Ps. welle.io has a modern easy to use GUI. It is fork of dab-rpi and 
> sdr-j-dab which is now qt-dab http://github.com/JvanKatwijk/qt-dab
> and 
> uses also code from the dablin project 
> https://github.com/Opendigitalradio/dablin. 

> <https://github.com/Opendigitalradio/dablin>
>

Can I ask why fork Qt-DAB rather than contribute to it?

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[Albrecht Lohöfener]

I contributed to dab-rpi (version before Qt-DAB). After nearly one year
of constant contribution I received an e-mail from Jan (author of
Qt-DAB) and he told me that he is planning to merge sdr-j and dab-rpi.
In order to merge these two versions he wanted to get rid of all
unnecessary things. And the touch GUI (GUI_3) (now GUI of welle.io) was
not necessary in his eyes. In the same time he removed my write access
to dab-rpi and he told me that I have to fork it. Since this e-mail he
didn't response to my mails and he didn't accepted pull request to
dab-rpi from me.

I'm not happy with this situation because I'm not really a fan of forks.
But I didn't have a real choice.

Ps. Maybe the touch GUI was one reason. The other reason was that I made
some changes inside the back-end e.g. I added dablins XPAD code because
his code was to buggy. Or I added code which requires QT 5.6 or above.
He wanted to stay on QT 4.8 and added a lot of #ifdefs to ensure the
dab-rpi is compiling with QT 4.8 as well as QT 5.6.
But all this is pure speculation. Now we have the fork I will do the
best of it.

[Matthias Brändli]

Hi Albrecht,

cool application you've pulled together here, I like the GUI.

What would be awesome for the expert mode is a visualisation of the
channel impulse response combined with TII decoding!

Cheers
mpb

> <https://github.com/Opendigitalradio/dablin>

>
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[cl...@radioalfa.dk]

Hello,

I was going ask the same question as Matthias.

CIR and TII would be very nice.

Claus

> <mailto:crc-mmbtools+unsub...@googlegroups.com>.

[Jan de Vries]

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"

same here, but is working on Win7 prof 64 bit, I5-3230, 2.6 Ghz

When search and no reception results, no rescan is possible and application freezes.
Manual tuning would be appreciated, could be in expert mode ?

otherwise, great app !

[Albrecht Lohöfener]

I put your wishes to task list
(https://github.com/AlbrechtL/welle.io/wiki/Open-Tasks).

It would be very nice if somebody takes this job and send my a pull request.


Am 17.03.2017 um 12:06 schrieb cl...@radioalfa.dk:
> CIR and TII

[Albrecht Lohöfener]

Please see my comments below.

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"

same here, but is working on Win7 prof 64 bit, I5-3230, 2.6 Ghz

This problem is reported here: https://github.com/AlbrechtL/welle.io/issues/15

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

I opened a new issue: https://github.com/AlbrechtL/welle.io/issues/21
Please add more details there if you have one.

Manual tuning would be appreciated, could be in expert mode ?

You will find this point on the task list https://github.com/AlbrechtL/welle.io/wiki/Open-Tasks

otherwise, great app !

Thanks.

[Russel Winder]

I cloned the repository but cannot build "out of the box" because of
things that got fixed in the CMake files after this repository was
forked.

It seems there is a lot of work needed on the CMake files to get this
"up to speed". I'll see what I can do, but no promises.

[Matthias Brändli]

Is there an advantage of having both qmake and cmake?

I was able to compile it without problems (ok, I had to disable airspy)
using qmake.

mpb

[Evert Verduin]

Very Nice!!!

I Have been playing with it yesterday.
Is it possible that Welle.io displays the MER of a signal in dB's and in percentage? These are very very usefull parameters.
It is the slickest tool i Have seen sofar!
Keep up the good work!

[Matthias Brändli]

+1 for the proposal to calculate MER! There is an example in gr-dab that
can calculate MER, but it gives a value in % and not in dB.

mpb

[Rashid Mustapha]

+1 from me too! CIR and TII demodulation would also be....awesome! :-)

R.

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[Albrecht Lohöfener]

I added it to the task list (https://github.com/AlbrechtL/welle.io/wiki/Open-Tasks).
However, I accept pull requests if somebody would like to implement it.

For me welle.io is a hobby project and I do this in my spare time. Thus, I can't implement all features that you are requesting. If you really want advanced features like display of CIR, TII and MER please sent me pull requests.

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[Evert Verduin]

Matthias,

How did you managed to get gr-dab to work? I am using a RTL stick and my qpsk demod won't lock properly. No constellation fix for the gnuradio example.

I would love to see the MER of my signal somewhere ( can't afford an R&S ETL ).

BR

Evert

Op dinsdag 21 maart 2017 18:55:56 UTC+1 schreef Matthias Brändli:

[Rashid Mustapha]

Sounds like you're not far off. Did you apply the appropriate offset to compensate for the crappy crystal in the stick? It's probably worth replacing it with a TCXO if you want it to not be a pain to use!

R.

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[Russel Winder]

On Sat, 2017-03-18 at 11:37 +0100, 'Matthias Brändli' via mmbtools
wrote:

> Is there an advantage of having both qmake and cmake?
>
> I was able to compile it without problems (ok, I had to disable
> airspy)
> using qmake.
>

Personally I would prefer a Meson build, but…

Having a CMake build means you can use IDEs like CLion. QMake is
supported by, well no-one other than Qt, so I guess QtCreator.

I'll see if I can get the CMake build working.

[Federico Allegretti]

Really cool application.
Going to test as soon as i can find a windows machine in the office :D

[Matthias Brändli]

On 21/03/17 20:19, Albrecht Lohöfener wrote:
> For me welle.io is a hobby project and I do this in my spare time. Thus,
> I can't implement all features that you are requesting. If you really
> want advanced features like display of CIR, TII and MER please sent me
> pull requests.

I feel you, bro :-) I've sent you a pull request for LimeSDR support.

Would you accept pull requests that change modernise the internal
structure of the receiver code? Indentation is inconsistent, and there
are many places where C++11 would bring improvements in maintainability
of the code. The downside is that it makes it more difficult for you to
follow the work in qt-dab.

mpb

[Albrecht Lohöfener]

> Would you accept pull requests that change modernise the internal
> structure of the receiver code? Indentation is inconsistent, and there
> are many places where C++11 would bring improvements in maintainability
> of the code.

Definitely yes! I know that the code has a lot of potential for
improvements. I'm looking forward to your pull requests.

> The downside is that it makes it more difficult for you to
> follow the work in qt-dab.

Still now it is difficult to merge code from qt-dab to welle.io. And if
the welle.io code is better maintainable with less bugs than there is no
need to use code from qt-dab.

[Albrecht Lohöfener]

>> Would you accept pull requests that change modernise the internal
>> structure of the receiver code? Indentation is inconsistent, and there
>> are many places where C++11 would bring improvements in maintainability
>> of the code.
> Definitely yes! I know that the code has a lot of potential for
> improvements. I'm looking forward to your pull requests.

The only request that I have is, that code changes doesn't change or
improve the performance. I checked the work that Felix and Tobias
(data-over-dab libraries) did and these code doesn't run successfully on
a Raspberry Pi 2/3.

I have also the motto: It is better to have less features that works
instead of many features with a lot of bugs. This was also the reason
that I deleted a lot of dab-rpi (qt-dab) code in welle.io.

[Matthias Brändli]

Ok that's fine. If I do send you pull requests on that topic, I will
distinguish between commits that refactor the code without doing any
change in functionality, and those who change functionality.

I hope you're not opposed in principle to improving performance :-)

mpb

[Evert Verduin]

Hi Rash,

How do you compensate for an offset when the tool is used in GRC?

The commandline thingy works, but the GRC does not, since i have no clue where to pass the extra parameters to the RTL stick.

Br

Evert

Op woensdag 22 maart 2017 12:13:00 UTC+1 schreef Rash:

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[Peter Symonds]

Is there a way of selecting different sound cards for the audio output? This would be very useful because I have a multi-channel sound card.

Pete

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Peter Symonds

Broadcast Engineer and Radio Tech Geek

[Peter Symonds]

This is for the windows version.

Pete

[Albrecht Lohöfener]

welle.io uses the default sound interface.

If you would like to switch to another channel you have to set this channel as default channel.

-----Ursprüngliche Nachricht-----
Von: Peter Symonds <peteys...@gmail.com>
Gesendet: Mit 29 März 2017 13:06
An: crc-mm...@googlegroups.com
Betreff: Re: welle.io DAB/DAB+ reception application