DAB+ App: (real)zoulou's DAB-Z app (official support thread)

[TorstenH]

In some cases the app stuck at the screen below. Switching to another app and back helps to start DAB-Z. Happens only in two latest app versions.

Someone has similar experience?

View attachment 5571261

Had the chance for a quick look into logcat before jumping in the office. Attached some pics.

 

[japioothuis]

This must have been coincidence. I did not do any changes that could explain your described behavior. Maybe you have a device in the vehicle which radiates HF noise at 11C frequency (=220352 kHz ~ 220 MHz)

I was checking the 11c commercial stations on my DAB+ home radio ( never use DAB on it because I have cable radio ) and also
on the kitchen DAB+ radio here in the western part of The Netherlands and both radios have the same problems
with 11c.
So I suppose it's a weak signal problem here.

 

[realzoulou]

@TorstenH Which Android version do you have on the device?

 

[realzoulou]

1. after starting of DAB-Z it is often takes 10-15 seconds to populate station list (i have about 120 stations, and about 16 favorites). Other option - after 5 seconds it says that there are no stations and i should start scan. To get out of this mode it is not enough to just go back. I really need to kill app from recent app list, then after restart the chances are big, that it will find all my stations after 4-6 seconds.
This problem appears in approx. 50% of cases.
2. It is sometimes happens that the station is playing, but signal strength is not there - white dashes as pictogram, and empty space ("") as a value for signal strength in options (second page after station logo). Mention, that if there is no signal for station - then this field has words "NO SIGNAL".

I ran an endurance test on my Sofia device with 61 stations ... total 40 loops of start...wait for audio...stop

Since you are able to repro with 50%, can you send me a logcat with OMRI verbose mode of such an incident?

 

[DominicS65]

Hi, not a biggie but is there a way to disable the service following feature? I have turned the sensitivity down to 1 which does help but doesn't seem to completely eradicate my issue. My use case is that I am in UK and listen to Classic FM (yes despite the name it is on DAB) and this indicates with the SF logo that this is active. What tends to happen is that I select Classic FM (on DAB) and after 10 seconds or so it goes quiet as it presumably hunts for an alternative signal and just stays in this state until I tune away. Eventually I reselect and it is OK, presumably because the car has moved to a more favourable location.

 

[realzoulou]

This sounds like the issue which was introduced in 1.9.118 BETA and fixed in 1.9.119. Are you using .119 or .118 ?
SF can be disabled in DAB-Z Settings->General

 

[DominicS65]

Thanks for the reply, I see what my issue is, when I connect the head unit to my house wifi on my drive and tell Google Play to update everything, I am generally listening to the radio so DAB-Z is almost always open with the result that it is hit or miss if it gets updated. I forced an update and was able to see the disable SF toggle in General Settings. Whenever people are in my car and ask about the headunit I always mention that DAB-Z is the difference between an Android head unit being useful and being great.

 

[pin1904]

Hi,

I'm facing a strange bug in my DAB-Z App. If I use the one that was preinstalled on the device, I am able to change the background image. But as soon as I update to the latest version, it keeps the background image, but as soon as I enter the menu to change the bg image (in german it's named 'Darstellung') the bg is changed back to no image (black) and the option to change the background is greyed out ("no image picker app found").
On the old version (have to look it up which version it is) I am able to change the background image, and if I update it over Play Store to the latest version, the background image is still set. But as soon as I enter the menu it's reset to the black background and I have no option to pick an image. Are only certain image pickers supported? Which one should I use? Tried several, Google Images and a few others i can't remember but nothing works.

Thanks in advance

 

[IG_Vasilich]

try "simple gallery" - it worked for several people before.

 

[realzoulou]

@pin1904 You have DAB-Z preinstalled in your device?!? This is actually not allowed by me. But I knew already that some devices for BMW cars come with my app as preinstalled app.
Apparently the company "forgot" to add a "Gallery" type preinstalled app.

All image picker apps are supported, which satisfy the Android standard Intent.ACTION_PICK or Intent.ACTION_GET_CONTENT (with type image/*)

I would be interested in knowing more about your device, who sold it and what DAB-Z version was preinstalled. Contact me on PN or email. I am fluent in German ;-)

 

[[email protected]]

Hello,
I think that the google translation is not good and there are some mistakes. I try to answer you without translation.
I tested the two versions at the same place in my car. The reception was really better on weak signals with 1.9.117 version.
It's as if the muting in a FM receiver was set too high!
I compare the last version 1.9.118 with DabPlayer -C2-H3.06 and DabPlayer C2-H3.18.18. After a complete scan, the number of stations found is equal but the audio cut with 2 bars signal but it's a little better with your software.
Dab player decodes station logos, your software only takes a few. But it's possible too add the logo in the station list with a long press of the finger, it's just longer.
Finaly, DabPlayer launches a scan on the sid of the current station when the signal is too weak.
I'm really sorry that I can't send you a raw recording but it doesn't work. After typing 7 times on version 1.9.117 nothing changes!
I attach below a very interesting conversation found on a French forum which explains how the following service works and how in France the FIC and FIG information (fast information channel and group) are not transmitted by French transmitters except on a single transmitter in Paris. hope the google translate will be good

FIC and FIG data are defined in the DAB+ standard.
In particular, we find the use of FIG0/21, FIG0/6 or FIG0/24 in the technical standard ETSI TS 103 176 Rules of implementation; Service information features in chapter 5 relating to the monitoring of radios from one mux to another, from one block to another or also between DAB and FM.
FIC and FIG Fast Information Channel and Group

FIC and FIG data are defined in the DAB+ standard.
In particular, we find the use of FIG0/21, FIG0/6 or FIG0/24 in the technical standard ETSI TS 103 176 Rules of implementation; Service information features in chapter 5 relating to the monitoring of radios from one mux to another, from one block to another or also between DAB and FM.


the FIC structure is shown in this worlDAB document:

https://www.worlddab.org/files/document/file/3923/2._JRTV_2017-DAB__System_Structure.pdf

the definitions of these data can be found in the worldDAB glossary:

FIC :arrow: Fast Information Channel
The FIC is a non-time-interleaved data channel with fixed equal error protection. In particular it is used to send the DAB Multiplex Configuration Information (MCI) and optionally Service Information and data services.

FIG :arrow: Fast Information Group
The FIG carries the following parts: Multiplex Configuration Information (MCI), Service Information (SI), FIC Data Channel (FIDC) and Conditional Access (CA).

we were led to talk about this FIC data on the forum in the thread of the two metropolitan multiplexes from February 7, 2022 because this data contains the information for monitoring services from one mux to another, when the reception picks up. This signaling is optional, widely deployed in Switzerland in particular but not at all in France currently.

the free DAB Player PC software (combined with an SDR-RTL key for less than 20 euros) makes it possible to recover these FIC data over a period of time (one minute is generally enough to recover everything largely)
We can already see if the different FIG groups are present in the FIC with DAB Player, in the DAB-info, FIC and FIG Statistics section...
They are all empty in Paris on all the multiplexes... except on the extended 11B Paris where we have FIG0/6 data...

Hello folks,
Thx for all the details,
I think current handling of service following is based on some misunderstanding of DAB Spec an interpretation of the rules of implementation. Basically there are implicit and explicit linking.
Explicit linking is signalized by FIG0/6 service link. As dab to dab or dab to FM hard and soft links. Both exist in national an international version and can be activated or deactivated by link actuator. But there is also implicit linking which compares ECC of ensemble or service, Sid and acid and or scids and uses following Rules to find same Service relationship.
1. ECC , EID, SID AND SCID is the same but transmitted on different frequency.
2. ECC SID AND SCID are same only Eid is different.
Important to know ECC can be transmitted on ensemble level and also on optionally on service level with cross country distribution like radio Maria or Bayern 3 in south Tyrol .
I hope this helps why pure dab highway is able to support service following if not fig 0/6 is transmitted.

 

[pin1904]

try "simple gallery" - it worked for several people before.

Hi, thanks for your response, but unfortunately simple gallery, at least that one I've tried (Simple Gallery), doesn't work either. I've talked to Zoulou and he mentioned that the problem might be that I'm using an Android 11 device which came without any "factory" image picker and the Simple Gallery isn't optimized for A11.
Does anybody know an image picker app for A11?

 

[okij]

Does anybody know an image picker app for A11?

Total Commander

 

[blackmike]

Jello , is there a way to run sab-z on a klyde headunit with internal dab tuner? Or a versionof dab-z?
I find the dab-z app better than the original.

 

[realzoulou]

Only USB connected DAB adapters are supported as described in post#1

 

[rigattoni]

Jello , is there a way to run sab-z on a klyde headunit with internal dab tuner? Or a versionof dab-z?
I find the dab-z app better than the original.

Ignore the installed DAB receiver and just buy an USB one. That enables you to run DAB-Z.

 

[blackmike]

Ignore the installed DAB receiver and just buy an USB one. That enables you to run DAB-Z.

Ok. Thats not that what i want to hear....the internal tuner is not bad.. can you tell me which one is a good dab tuner ? The internal dab must be disabled? If yes , how to do?

 

[rigattoni]

Ok. Thats not that what i want to hear....the internal tuner is not bad.. can you tell me which one is a good dab tuner ? The internal dab must be disabled? If yes , how to do?

Just have a look aat the first posting in this thread.
There are a lot of different and nearly the same in different covers.

You don´t need to deactivate anything, cause the related SW is not present. Just attach the new receiver to the USB and install DAB-Z. That´s it.

 

[blackmike]

Just have a look aat the first posting in this thread.
There are a lot of different and nearly the same in different covers.

You don´t need to deactivate anything, cause the related SW is not present. Just attach the new receiver to the USB and install DAB-Z. That´s it.

Ok. Thank you very much

 

[Anton TNT]

Hi realzoulou .
Just one small problem to address to for all users here including you.
This DAB-Z app is having a problem on my HU. It works fine as app but...

I have noticed that this DAB-Z app cause a interference with radio app specifically with 8227L motherboards.
I have ALPS F5000 device with Android 10 (fake Chinese 8) - build: CHS.8227_8_UI4_Android 10.
Namely, when you install new firmware on the 8227L platform, everything works ok (meaning for ALPS, JUNSUN, XTRONS, MEKEDE, A1 etc.), but when you log in to the GOOGLE PLAY STORE and download the DAB-Z app and install it, it's there application interference occurs. I don’t know why but it just freezes my radio app after the engine shuts down and is idle. After restarting the engine the radio app simply freezes and will not return or work again until I reinstall the firmware from scratch. How does this affect the operation of radio tuners and what is the problem? What it needs to be done here to resolve this ?

P.S: Also noticed that problem maybe lies in app settings "on top of other app".