DAB is a solution looking for a problem.
Back in 1997 I went to an engineering and technology fair in Newcastle.
In among all the exhibitors raving about this new internet thingy was the BBC R&D stand. They had a live DAB demo running.
The equipment was big, about the size of a suitcase and fitted in the boot of a car. They were using an reception antenna located outside the hall and playing Radio 3 at a high bit rate, so in theory it should have sounded great. But it sounded muffled and the signal kept dropping out, despite the rep telling me that they had ramped up the power of the local test transmission especially for this event.
I couldn't but help feel it all seemed a bit "early prototypey", Digital phones had been around for over a decade, there were various digital data transmission systems in use and digital DTH satellite broadcasting had been around for a while with reasonably sized receivers. I just came away with a feeling that DAB should have been a bit more advanced at that point in time.
The rep assured me that when it launched to the public it would be amazing.
Then I heard nothing more about it until Psion launched their Wavefinder USB DAB radio on 2000. I got one when they reduced the price. To be honest I was underwhelmed with what was on offer. All the drop outs and muffled audio just made me think DAB was rushed to market. Later I learned that the prototype I seen at that fair wasn't actually a prototype at all. The standard has been ratified years earlier.
And it wasn't just the underling technology that was at fault, a lot of DAB radio are incredibly poorly designed with weird channel selector interfaces. Also, so many of them have cheap crappy speakers, no doubt to offset the cost of the DAB electronics and a need to keep the unit price low.
I can't help but feel that DAB was a proof of concept idea that somehow got to market.
Its just a pity that no one seems to want to put it right by obsoleting DAB and replacing it with the much better DAB+.