Re: [ARSCLIST] Preservation media WAS: Cataloguing still :-)

[Mike Richter <mrichter@xxxxxxx>]

seva wrote:
> At 9:48 AM -0700 9/3/06, Lou Judson wrote:
>
> > you were clear except for the one detail. A number of programs can 
> > open edit and resave as MP3 but none can restore full fidelity. 
> > Fraunhofer
>
>
>
> i believe none edit native mp3 format. it has to go back to linear PCM 
> (be de-coded), edited, then *re-encoded*.
>
> you'd be better to work at 16/44 linear PCM  at all times...
Some do minimal editing - splitting and joining files, for example - 
without recoding. However, any substantial changes, even taking out one 
click, will require recoding and the attendant losses.

I'm not sure what Lou Judson was planning to write about the Fraunhofer 
codec, but let me note my experience. It is the most conservative of 
those I know, rolling off high frequencies explicitly so that the 
inaccuracies and artifacts are not reproduced and exacerbated. As a 
result, it is the least harmful on recoding.

Other compressors I have tested appear to have better high-end response 
but at the cost of artifacts and inaccurate reproduction after the 
Fraunhofer's cutoff.

There is no free lunch.

Mike
--
mrichter@xxxxxxx
http://www.mrichter.com/