At 12:36 AM 6/14/2004 +0200, Michael Fingerhut wrote:
>Don Cox wrote:
> > The numbers in an ordinary 16-bit 44.1KHz WAV file are exactly the same
> > as those on an audio CD. The difference is that a WAV file might have a
> > different number of bits, or sampling frequency, so it needs a header to
> > say what these are, and how many channels are present.
> > Most WAV and AIFF files are 2-channel 16-bit 44.1KHz, in my experience.
>WAV is a much more complex file format than just PCM and thus may greatly
>differ from the data on an audio CD, not only on account of the header and
>channel numbers. Here is how:
I believe that the two authors are in what amounts to "violent agreement".
The typical WAV file one encounters is uncompressed PCM audio, although the
format permits a great deal of flexibility. Thus, Don writes of "ordinary"
files; Michael of the full range of possibilities.
It may be worth reminding ourselves that even in the 'ordinary' (redbook)
WAV file, the sequence of bytes is not that on a CD-DA. That rearrangement
is virtually all that need be done in Digital Audio Extraction (DAE) of a
clean CD-DA disc.
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