[LAU] Lossy audio to lossless format

[Egor Sanin]

On 10/1/14, Philipp Überbacher <murks at tuxfamily.org> wrote:
> Hi Egor,

Hi Philipp and all the folks that have provided input on the subject.
It is all very informative.

> once upon a time I read a lot about audio codecs on
> http://www.hydrogenaud.io/forums/. Note that this is a codec focused
> forum, not a free software focused one, but people like the lame and
> ogg developers do (or used to) read and write at those forums AFAIK. I
> also remember that there was some windows tool for the purpose you
> describe but I can't recall the name. Anyway, AFAIR it used the
> techniques already described, spectral analysis to detect lowpass
> filtering.

Great, it will be a good exercise for me, and I will try out this method.

> There are some artifacts of the mp3 codec that allow for rather
> reliable detection, pre-echos come to mind. You are likely able to
> train yourself to listen for these artifacts, but you may not be able
> to un-train yourself ;)

Haha, ok, this is usefull, too!

You guys are great!