Crystal-clear digital radio was set to hit America this September – but the technology has run into trouble. The US National Radio Systems Committee (NRSC) last week decided the system’s sound quality is not good enough to broadcast.

As a result, the NRSC has suspended its digital radio standards-setting process, which is vital to the launch of new radio sets. The NRSC says digital radio cannot be rolled out to consumers until iBiquity Digital of Columbia, Maryland – the company that is providing the digital technology – gets it right.

iBiquity Digital planned to use a technology called in-band, on-channel (IBOC) broadcasting that squeezes both the old analogue radio and the new digital radio signals into the frequencies currently used by AM and FM channels. Listeners would need an IBOC-compatible radio to receive the digital signals, but these cannot be manufactured until the NRSC sets the standards.

More here.