On Wed, 13 Nov 2002, Haas Wernfried wrote:

> maybe you could switch to ogg vorbis, it is designed to be able to peel
> a stream, which means reducing bitrate without reencoding, but afaik
> the tools for peeling are quite experimental / not available for the public
> yet. if you already have mp3s and not the original wav files, ogg would
> not help you anyway, as reencoding mp3 to ogg is a very bad idea, too.
> hope no one's annoyed because im advertising ogg here, i personally like
> both lame/mp3 and ogg vorbis.

Switching to ogg vorbis isn't a solution.  The problem is within lame.
I can use these files on a windows machine and not have the artifacts.
I can use toolame and not have the artifacts.  The problem with using
either is that 1) this is a unix installation, 2) toolame's lowpass
filter isn't controllable and doesn't sound that great and 3) I'd have
to incorporate toolame into this heavily modified version of ices whereas
lame already is.  The artifacts also show up on live broadcasts so there's
no mp3->mp3 conversion even going on.

Once again here's the original problem:

> > I have a number of files created with lame 3.92 using the --r3mix
> > preset.  They all sound great.  The problem is when I reencode them down
> > for streaming.  It doesn't matter if I reencode on the fly or reencode
> > first.  The effect reminds me of a phase shifter commonly used on a
> > guitar.  You can actually hear it here with winamp, xmms or whatever
> > you like here:  http://caroline.pop4.net:8004   The stream is 56k @
> > 44.1KHz - which should sound good.
> ...

The OS is FreeBSD v4.7 and I've tried installing lame from both the
straight sources and from FreeBSD's ports.  No difference.

Vince.
-- 
   http://www.meanstreamradio.com       http://www.unknown-artists.com
         Internet radio: It's not file sharing, it's just radio.



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