DAB radio no audio

[ocram76]

Good evening, I am a novice and for this reason I would like to ask for your help on a problem encountered with the DAB. The rtl usb stick is detected correctly and finds several stations (about 100) when I launch them to listen to them they start but there is no audio. Obviously with the other sources everything works perfectly. I forgot, I mounted rAudio on raspberry pi 4 and tried the RTL usb stick on PC and it works correctly. Thanks to all those who want to help me. Regards.