Which app to watch DVB-T TV and list to DAB+ radios?

I tried using a USB device with an RTL2838 chip that can demodulate and decode DVB-T and DAB, connected to the antenna on the roof of my building (the device has a tiny antenna connector, I use an adapter cable to connect a standard TV antenna cable).

With vlc, if I select acquisition device (not sure this is the English name, my interface is in French), DVB-T and set a proper frequency, I can see a TV channel.

However, I have not found out:

• how to select a TV channel among the ones multiplexed on the same frequency
• how to listen to DAB+ radio channels

I searched DAB in Trisquel repositories, all I found was:

• dablin: dablin_gtk opens but I cannot select anything
• iowelle.io: it seems to be about SDR for the RTL2832u chip which is not what I have, so I have not tried

Is there any reasonably convenient app to watch DVB-T TV and listen to DAB+ radios on Trisquel using a USB DVB-T/DAB adapter? Ideally, it should be possible to enter the frequencies as channel numbers, which is what is advertised usually.