best archiver? (for music)

[Roland Smith]

On Fri, Mar 13, 2009 at 08:05:59PM -0700, Gary Kline wrote:
> > lame -h -V 3 - nobody could tell the difference, it gives <200kbps bitrate
> > lame -h -b 192 - as above
> > lame -h -b 128 - they were able to tell difference, but not on all 
> > music/songs
> > 
> > lame -h -b 96 - i was able to tell the difference on every song, but it 
> > wasn't really huge deal.

> 	my hearing is exceptionally good and while call myself an
> 	audiophile,  having all my tunes right here at fingertips is 
> 	a major win.  having said that, can you point me to a basic
> 	tutorial on lame? 

man lame

>	i've got 1581620 blocks of mp3 @ 128kbit.
> 	lectures.  when i tried to cut the quality even by a bit it was
> 	evident immediately.  rar compresses these file to
> 	1482404 blocks very very slowly.  it probably makes sense to just
> 	burn the mp3 files to a dvd and be safe.  

There is a special codec for speech. You'll find it the
audio/speex port. From the pkg-descr:

  The Speex is a patent-free, Open Source/Free Software voice codec.
  Unlike other codecs like MP3 and Ogg Vorbis, Speex is designed to
  compress voice at bitrates in the 2-45 kbps range.  Possible
  applications include VoIP, Internet audio streaming, archiving of
  speech data (e.g. voice mail), and audio books. In some sense, it is
  meant to be complementary to the Ogg Vorbis codec.

This might perform better at compressing lectures.

Roland
-- 
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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