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Old 04-09-2017, 20:58   #37
tpreitzel
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Join Date: Apr 2012
Posts: 1,759
Quote:
Originally Posted by F1BJB
HI
I don't agree that forbidding anything will promote DRM.
On the contrary dynamic changing of modes and frequency according to
target,content and propagation should be promoted.
It will help detecting receivers with too limited features.
Feedback from listeners should allow broadcasters to choose the best mode.
Laurent

Laurent,

Although dynamic changing of modes would be better than any static configuration, thousands of logs have clearly demonstrated that 64 QAM modulation has problems on shortwave bands. Modulation of 64 QAM was clearly intended for AAC+ codecs on the MW band, not HF. Consequently, xHE-AAC was added to the DRM standard primarily for use on HF at LOW bit-rates. Hence, we'll have to agree to disagree on that issue.

Last edited by tpreitzel : 04-09-2017 at 21:18.
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