Thread: DAB advice
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Old August 6th 10, 07:18 PM posted to uk.rec.audio
Peter Chant
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Posts: 20
Default DAB advice

Jim Lesurf wrote:


Does it? Stereo FM is limited to about 15kHz. I thought DAB exceeded that.
It does use a 48k sampling rate so in principle could reach 24kHz,
although I assume the data-reduction will throw away some of the HF end
depending on settings and content.

Where did you get the info? I've not measured DAB in ages. I guess I
should check.


I've not read it for a while but I through FM was 17.5 - 18 kHz whereas DAB
was 16kHz - though I probally saw this spec nearly 20 years ago. Googling
now mainly brings up items such as critism of compression. Wikipedia says
15kHz, but I'm sure it was a bit higher. Suppose it depends on how close
you allow yourself to get to the 19kHz pilot tone.

However, I suspect _working_ DAB would beat average FM for sound quality -
i.e. where the user is not too interested to make the effort / cannot get
good reception, not that I've tried.

Pete


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