Slashdot interview re: vorbis

Kerry Hoath kerry at gotss.eu.org
Sun Aug 20 01:08:13 EDT 2000


Ok the sad news is as follows:
The best mp3 encoder for LInux at Low bitrates in my experience is l3enc by
fraun hofer (spelling). It manages 32kbps rather well although it does
introduce some noise and stuff. The sox resample code is broken unless you are
running sox 12.17 I believe and you use the resample option not the rate loop.
When I say low bitrates that is bitrates <128kbps.
Bladenc seems to shine at rates over 160kbps as do most of the iso-based
encoders. There are encoders like LAME and GOGO, but they have nasty artifacts
at rates <64kbps mono and insert schreechy sounds like 2 birds mating into your
audio stream.

Gogo has the advantage that it is blazingly fast with huge chunks in raw
assembler. The disadvantage is the documentation is a bit so so and the source
comments are in Japanese.

If anyone wants a copy of l3enc I have binaries for libc5 and an enabling
alternative.

Regards, Kerry.
On Sat, Aug 19, 2000 at 02:38:25PM -0400, Charles Hallenbeck wrote:
> Hi Geoff -
> 
> After seeing your earlier note about piping audio streams with lame, I
> decided to give that program a whirl. I have been using bladeenc until
> now. I noticed after compiling and installing the August 6 beta release
> that it now supports encoding and decoding the ogg vorbis format as well
> as mp3. I am curious - is that a new feature? Have you used it? How does
> it work? I have not been too happy with bladeenc as an mp3 encoder because
> it requires a minimum of 32 kilobits sampling rate inputs, and the
> resulting mp3 file loses something in the translation. That is, if you
> only have 8k or 11.025 or 16k to start with, it seems wasteful to first
> artificially inflate the sampling rate to 32k in order to compress it with
> bladeenc, and lots of noise creeps into the signal along the way -
> probably with sox resampling.
> 
> I am hopeful that lame can do a better job, and am excited to see ogg
> vorbis support too.
> 
> Chuck.
> 
> 
> My web site is http://www.mhonline.net/~chuckh 
> Keep grandma off the streets -- legalize bingo.
> 
> 
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-- 
--
Kerry Hoath: kerry at gotss.eu.org
Alternates: kerry at emusys.com.au kerry at gotss.spice.net.au or khoath at lis.net.au
ICQ UIN: 8226547





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