RE: [SoX-users] live-encoding of MP3 from line-in

[Christoph R. <ch...@ya...>]

Hi Graham,

the 8-bit-file seems to work but it is still dull. I
have tried to use -c 1 or mix both, -c 2 and -c 1 (my
input is stereo but the data from the input is already
monoized - both channels send the same data). Doesn't
work - the music in the mp3 is twice as fast as it
should be. Sounds funny, like mickey mouse, but that's
not what i wanted :-/

Nevertheless, thanks for your help. Maybe i have to
live with WAV encoding and the crashes... :-/

Bye
Chris

--- Graham Lenton-Monitoring
<Gra...@mo...> wrote:
> Hi Chris,
> 
> I'm not sure this is gonna be much help,
> 
> but for mono 8kbps I'm using :
> 
> sox -t ossdsp -w -s /dev/dsp -t raw -r 44100 -c 2 -
> | \
>  lame -r -m m -b 8 -x -a -s 44.1 --resample 8 -
> some.mp3
> 
> it comes out ok (for 8 kbps!!)
> 
> If you input is mono (?) you would need -c 1 ?
> 
> Maybe try resampling at a lower rate to match the
> 64kbps ?
> 
> Sorry I can't be of more help but IANASE (..sox
> expert)
> 
> Graham :o)
> 
> -----Original Message-----
> From: Christoph Rupp [mailto:ch...@ya...]
> Sent: 05 December 2002 10:01
> To: Graham Lenton-Monitoring;
> sox...@li...
> Subject: Re: [SoX-users] live-encoding of MP3 from
> line-in
> 
> 
> Hi Graham!
> 
> Thanks for your help. It works far better than
> before
> - no more noise and static :)
> 
> But it still sounds "damped". I have made several
> tests with several parameters:
> 
> sox -t ossdsp -w -s /dev/dsp -t raw -r 44100 -c 2 -
> |
> /usr/local/bin/lame -r -m m -b 64 -x -s 44.1
> --resample 44.1 -
> 
> Note the -m m - i need mono. the result was music
> which was twice as slow as before, and sounds quite
> funny:
> 
> http://www.kochenmachtspass.de/test1.mp3
> 
> 
> Now the same in stereo (joint-stereo leads to the
> same
> result)
> 
> sox -t ossdsp -w -s /dev/dsp -t raw -r 44100 -c 2 -
> |
> /usr/local/bin/lame -r -m j -b 64 -x -s 44.1
> --resample 44.1 -
> 
> http://www.kochenmachtspass.de/test3-ms.mp3  
> (stereo)
> http://www.kochenmachtspass.de/test3-mj.mp3  
> (joint-stereo)
> 
> They sound better but it's still very dull. The
> quality of my "rec -t .wav -c 2 -w -s - | lame -" is
> far better. And i NEED mono encoding.
> 
> Any idea?
> 
> Bye
> Chris
> 
> 
> --- Graham Lenton-Monitoring
> <Gra...@mo...> wrote:
> [...]
> > > rec -t .wav -c 2 -w -s - | lame - 
> > 
> > > I guess my rec-settings might be correct but
> lame
> > > needs more parameters but whatever i try i
> always
> > get
> > > noise. Maybe one of you has already solved this
> > > problem?
> > 
> > You betcha !!
> > 
> > I'm using
> > 
> > sox -t ossdsp -w -s %s -t raw -r 44100 -c 2 - |
> >  lame -r -m j -b 128 -x -s 44.1 --resample 44.1 -
> > somefile
> > 
> > just change the bitrate..
> 
> 
> =====
> http://www.crupp.de
> 
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=====
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