In article , Arny
Krueger
wrote:
"Jim Lesurf" wrote in message

In article , Arny
Krueger wrote:
"Serge Auckland" wrote in message



Consequently, we never experienced this sort of problem, and it was
then acceptable for digital players to clip at just over 0dBFS,
albeit for the wrong reason.

Thing is, these FS overs are very rare.

Depends on the context. I have found various commercial CDs that
generate excursions above 0dBFS. In some case, on many occasions
during the CD.

Many = 10s, 100s, thousands,???

Varies. IIRC The largest number I found was one track on a 'remastered'
sic Hendrix CD where there were there were thousands of samples in
flat-top-runs of clipping. (See the webpage on this on the audiomisc.couk
website which gives more info.) In effect, the waveforms though most of the
track were clipped.

Hard to do reliable statistics forCDs in general as I only had time to
choose a couple of dozen test tracks as examples and see if they showed
clipping. Some did not. But IIRC overall I found a number of tracks of
pop/rock which showed multiple clipping events involving hundreds of
samples. This problem was almost absent from classical or jazz CDs.


However these are almost all rock/pop music CDs. Much rarer with
classical or jazz in my experience. The difficulty here is checking
enough CD issues to results that have any statistical meaning, though.

I know how to make them, and I know how to keep them from happening.

Yes. I see no reason to doubt that those who produce commercial rock/pop
CDs *could* easily avoid this problem if they so chose. Hence my view that
it is the result of either incompetence or a cynical delusion on their part
that the buyers won't notice or care, and that their blind faith in
'loudness sells' trumps all considerations of sound quality. However I
can't know if this is ignorance on their part, or a cynical view that it
doesn't matter. You may have noticed that I have had disagreements with
Iain about this. :-)

I do not accept the view that the fact that people don't refuse to buy any
of the resulting CDs, or return them all, shows people are 'happy' with the
result. Just that they are given no comparison or choice, and not told that
what they are being sold is 'damaged goods'. Also that most people (in the
UK at least) feel it is a waste of effort to try and complain to a record
company.

Slainte,

Jim

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