Re: Unusual idea..
On Sun, 2003-08-10 at 15:56, Pigeon wrote:
> On Sun, Aug 10, 2003 at 12:26:15PM +0300, Micha Feigin wrote:
> > since wav and mp3 or both lossy (44khz wav can't properly
> > reconstruct signals with more then 22khz).
> That's something of a confusing statement...
> All recording formats are "lossy" in that the recording is never a
> perfect copy of the original real-world event. A "perfect" recording
> of a real-world event cannot exist. But this isn't what the word
> usually means in this context.
You are right, sorry, didn't have a better terminology but it is a bit
confusing. I was just point mt mistake in this case. I was thinking of
the theoretical concept by mistake instead of the real life case.
Once you limit yourself to the finite dimensional case then the
conversion would be unique.
> There is a set of recording formats, such that conversion of a
> file into/out of the format gives a result identical with the
> original; the chances of it being different are about the same as
> those of the very large number of monkeys writing Hamlet. These are
> "lossless" formats, such as wav and flac.
> There is another set of recording formats, such that conversion of a
> file into/out of the format gives a result which differs from the
> original. These are "lossy" formats, and include mp3, ogg and all
> analogue formats.