[opendtv] DRM+ or DAB+?
- From: Albert Manfredi <albert.e.manfredi@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Wed, 2 Apr 2008 20:44:35 -0400
Barry Wilkins wrote:
> I have just noticed an interesting development where the
> FCC is apparently permitting trials of DAB+.
Even though that was an April fools joke, my question for New Zealand, and the
rest of the world really, is why bother fussing with DAB+ and its new frequency
bands, when you can instead stay on the same AM and FM radio frequency bands
and use DRM+? Isn't this a better fit? And it uses the very latest of AAC codec
updates, HE-AACv2, which is even newer than the one used by DAB+ and HD Radio.
http://www.drm.org/system/technicalaspect.php
Trials are already underway in Germany, already finished in Hanover.
http://www.drm.org/pdfs/press_release_149.pdf
Used to be that DRM was just for the MW and SW bands, but now it goes up to 120
MHz. Doesn't this seem like a much better replacement for analog AM/FM radio
than DAB? If I had to pick some global standard to use instead of HD Radio,
this seems like the more obvious choice. You could start the transition by
allowing DRM+ channels at very low power levels, in the guard bands between
existing FM and AM stations, precisely the same as HD Radio is doing, in
effect, with its digital sidebands.
Bert
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