MP3 is notoriously bad for low Bitrate audio. Look at Opus and/or Speex
encoding.


On 12 September 2013 11:35, Long Wind <longwind2...@gmail.com> wrote:

> I use the command below:
>
> lame --mp3input --preset 30 input.mp3 output.mp3
>
> Thank you!
>
>
> On 9/11/13, Patrick Wiseman <pwise...@gmail.com> wrote:
> > On Wed, Sep 11, 2013 at 4:48 PM, Long Wind <longwind2...@gmail.com>
> wrote:
> >> the mp3 file is too big, 128kbps
> >> I want to reduce it to 40kbps
> >>
> >> Thanks!
> >
> > I use lame to reduce stereo mp3 files to mono; it (as one might
> > expect) halves the filesize.
> >
> > Patrick
> >
> >
> > --
>
>
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