Re: Digital to Analog downloading Question ?

On Apr 14, 9:51 pm, eseedho...@[EMAIL PROTECTED]
 wrote:
> On Apr 10, 5:46 pm, Sonnova <sonn...@[EMAIL PROTECTED]
> wrote:
>
> > > Wouldn't several generations of analog tape induce lossy
compression?
>
> > no, several generations of analog tape would introduce analog
compression if
> > any at all.
>
> And "analogue compression" is defined as ...?

Dynamic range reduction!

>
> The concept of lossy compression exists only in the digital world

Agreed

>
> And your evidence that this is so is....?
>  > In a tape recording, each generation of tape causes noise to build-
> up,
>
> > distortion to build-up, and transients to become less and less
distinct, but
> > unless the original recording was recorded  wildly "hot" 
(consistently
> > driving the meters over "0" Vu), no actual compression is indicated.
>
> So it reduces the dynamic range and it cannot be reconstructed to the
> sound of the original.  I think that fits any reasonable definition of
> "lossy compression" myself.
> Of course LC is usually done by computers
> using an algorithm, but that doesn't mean it couldn't be done by other
> means.  If it's compression and it involves loss of signal components
> as well then in my book that's "lossy compression".  Whether it's done
> by a comuter running an algortihm or by re-recording on several
> generations of analogue tape is beside the point, so far as I can see.

What you describe is certainly lossy but it is not compression. There
has been no data reduction assuming that the frequency response is not
altered. Storage requirements remain the same.