As you may well know in Turkey, there is no digital terrestrial television & digital radio network yet. The DTT network will be build with DVB-T2 standard. This lateness may be a window of opportunity. I have met Kenneth Wenzel in 2013 in Tallinn, Estonia. He has a proposal for digital radio over DVB-T2. There are different profiles for DVB-T2, one of which is DVB-T2 Lite. This low profile is designed for mobile DTT, Wenzel claims that it is also suitable for digital radio.
His presentation is as follows:
The only problem with DVB-T2 Lite radio is the receiver side. There are some receivers on the market and I believe many will be if more DVB-T2 Lite radios implemented.