[EMAIL PROTECTED] wrote:
For an example that you may actually have in your collection, check out Mike
Oldfield's _Tubular_Bells_. (If you don't have it in your collection, you
should probably go get it just because it's so cool.) Certain passages (not
the entire disc) have the preemphasis
The de-emphasis in mpeg audio is only a flag to indicate if emphasis was
applied on hte source or not, in order to compensate it in the decoder.
There is nothing to do about it in the encoder, except positionning the
flag.
The 2 emphasis types are some kind of boost of high frequencies, in order
should probably go get it just because it's so cool.) Certain passages (not
the entire disc) have the preemphasis flag set, at least according to the
preemphasis indicator on the Denon CD player I used to have. If anyone is
interested in using this for testing, I should be able to find
Gabriel Bouvigne wrote:
But those 2 emphasis (C/5) are now obsolete for a lot of years. This flag
was removed in AAC and mpeg-4.
Quite a few older CDs still have these emphasis flags set. I've just been
assisting with the remastering of a load for a well-known classical label, and
a couple of
In the Resampling Audio Package, Julius O. Smith said
"Any reasonable sampling rate can be converted to any other. (Note
that, in this example, if you have obtained a direct-digital transfer
from DAT or CD, you probably have some pre-emphasis filtering which
should be canceled using a
