[vorbis] Is there an oggenc low bit rate HOWTO?

[Mark Hetherington]

oggenc -M 16 --downmix in.wav
will give you a mono (downmixed from stereo) ogg with a maximum bitrate of 
16kbps...

> But I am having trouble finding how to use either oggdrop or oggenc to
> get these low bit rates.  I'm looking at two applications - compressing
> FM talk radio (in stereo - maybe around 32-40 kbps) and a voice
> recorder (in mono - perhaps around 16-24 kbps).  For now, the voice
> recorder is tied to a laptop - in the future hopefully I can get
> smaller hardware for that function (like the Ripflash for mp3).  Any
> advice on resampling rates, low pass filter cutoffs, or any other
> advanced oggenc tricks would be very welcome.
>
> Thanks Dara Parsavand
>
> (For very low bit rates, I did listen to the speex samples, but these
> are too distorted for my tastes.  Since I don't care about low latency
> encoding, and I'm not that tight on the bitrate constraints - I'd
> rather use oggenc.)
>
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