# Re: Digital Audio Broadcast (DAB), anybody running gr-dab? **URL:** \ **Category:** GNU Radio\ **Created:** [August 28, 2015, 8:49am UTC](https://www.ruby-forum.com/t/re-digital-audio-broadcast-dab-anybody-running-gr-dab/243164 "2015-08-28T08:49:37Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![Sadaf\_N](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/858c86/32.png) [@Sadaf\_N](https://www.ruby-forum.com/u/Sadaf_N)\ **Post date:** [August 28, 2015, 8:49am UTC](https://www.ruby-forum.com/t/re-digital-audio-broadcast-dab-anybody-running-gr-dab/243164/1 "2015-08-28T08:49:37Z")
Hi Ruben and all, thank you for your response. I am not sure if my last response found it’s way to you and the list. Nevertheless it contained a typo error. To keep it short: I could just test it again and indeed the -c switch (fine frequency correction) did the trick. Both USRP N210 and an rtl-sdr dongle work perfectly. Am Mittwoch, 26. August 2015 18:01 CEST, Ruben U. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) schrieb: > (…) > Extending the code to support audio reception will be happily appreciated. I was > intending to do that, but I was a bit overwhelmed back them, and didn’t get time > for it. It should not be very hard according to Andreas. > > I’m not aware of any other GNU Radio code that supports audio reception. Anyone > else? Before receiving audio I think a few additions have to be made to the fib\_sink\_vb\_impl class. The process\_fig method needs to be extended to support more FIG types and their extensions. I tried to do that on my own yesterday, but it is quite exhausting – you really need some time to read the standard and implement the code. Nevertheless the project is really well-prepared and it’s pretty nice to already work on bits instead of symbols as the signal processing, demodulation and channel decoding is already done. There is another nice DAB project at [1], but as far as I have seen it is not based on gnuradio. Nevertheless USRPs are supported via UHD (not sure if yet available as not displayed in the GUI) and several other hardware. Though I haven’t compiled it because of lack of dependencies on my Linux Mint. In my Win7 VM I have trouble to get the rtl-sdr driver issues resolved. In /src/backend you find their fib\_processor. An MSC handler is implemented as well (for DAB/MP2, DAB+/MP4). Cheers Matthias [1] [Software defined radio](http://www.sdr-j.tk/index.html)