On Fri, Sep 22, 2000 at 11:22:43AM -0600, Mark Taylor wrote:
> >
> > > Is it theoretically possible to amplify the sound in a mp3 file without
> > > reencoding it? What would be the quality loss of this operation?
> >
> > Yes: modifying the global_gain field in each channel of each granule in a
> > Layer III frame has the effect of amplifying or diminishing the decoded signal
> > in increments of 1.5 dB.
> >
> > There is apparently no quality loss associated with this change as long as the
> > signal is not amplified so much as to cause clipping.
>
> This utility will do exactly that:
>
> http://www.chat.ru/~lrsp/English/index.html
>
I can't download any file. Download starts at 5 KB/s and decreases slowly to
50...100 B/s. Time-Out after 50...100 KB.
--
Frank Klemm
--
MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )
