[MEncoder-users] Trying to understand the meaning of "Cannotset LAME options" message

[Nico Sabbi]

João Costa wrote:
> I am successfully using the following command to convert files to FLV 
> format.
>
> mencoder video.wmv -of lavf -ovc lavc -lavcopts vcodec=flv \
>         -o video.flv -oac mp3lame -af channels=1:0:0 -channels 1 \
>     -lameopts cbr:br=32 -ofps 24.75
>
>
>
> However, for one specific file, the above command will fail with :
>
> "Cannot set LAME options, check bitrate/samplerate,some very low 
> bitrates (<32)
> need lower samplerates (i.e. -srate 8000).If everything else fails,
> try a preset."
>
>
> So I tried adding the -srate 8000 option, and it does convert the file,
> but sound quality degrades very significantly.
>
>
> I've tried using different values for -srate (11050, 22100, 32000, 
> 44200), but
> either receive the same "Cannot set LAME options" error message, or a 
> floating
> point exception.
>
>
> Is there a way I can convert this, using a audio sample rate better 
> than 8000 ?
>

don't resample and increase the bitrate.
How can you pretend to keep good quality while reducing so drastically 
the bitrate?
 
 
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