| German DMB operator holding out for AAC+27th June 2006 Quoting from the Wohnort DAB website: "The head of the German DMB operator MFD, Henrik Rinnert, has told the German website teltarif.de that his company is holding out for the radio services on its multiplex to be broadcast using MPEG4/AAC coding rather than MPEG 1 Layer II. When the DMB project was advertised, it was made an obligation that at least one radio service should be transmitted using MPEG 1 Layer II." MPEG Layer II is the full name for what is usually referred to as MP2, due to its computer file extension (the full name for MP3 is MPEG Layer III), and it was designed back in the late 1980s (although it is the audio codec used on DAB in the UK). MP2 is totally out-of-date and extremely inefficient compared to the MPEG-4 AAC (Advanced Audio Coding) and especially HE AAC (High Efficiency AAC - also known as AAC+) - the latter is already being used for one radio station on the DMB multiplex, and it is used for the audio of the mobile TV channels on DMB. It is very sensible that the head of the German DMB operator is holding out to use MPEG-4 AAC/AAC+ as it allows around 3-times as many radio stations to transmit compared to if MP2 were used. AAC/AAC+ will eventually be incorporated in all digital radios, so
it makes sense to start using these it from the start rather than go
through the tricky process of changing over to AAC/AAC+ at a later
date.
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