[vorbis] streaming...getting it together

[smoerk at gmx.de]

>1.)  what is the status on low-bitrate streaming?  i know this has been
>asked a number of times...but as far as i can tell, it hasnt been asked
>lately. 

oggenc is not optimized for low-bitrates, but it's possible if the
source has a low sampling rate and it's mono

32khz/mono: 40-44 kbit/s
24khz/mono: 30-34 kbit/s

>2.)  are there any other ogg encoders for *nix besides lame and
>oggenc?  are there any besides lame that can encode under 64 kbs?  is it
>right that oggenc can only encode as low as 112 VBR ?

I think 100 kbps is the lowest for stereo/44khz

>to get it to encode
>lower i need to feed it a 22 or 16 khz file as mono?  

16khz mono sounds not very good.

>3.)  are there any tricks to getting lame to compile with vorbis support?
>I heard that the only way is to use lame3.87 and vorbis beta 3.  is there
>anywhere i can find a vorbis beta3 release?

why do you want to do this? you could downsample and filter with sox.

>4.) are there any applications to use to stream live to an icecast2 server
>taking input from the soundcard line-in (opening /dev/dsp at 22hz
>mono and streaming a 32kbs stream)?  any dirty hacks in the mean
>time?

I have a really dirty hack which uses python and sox. 

>5.) does anyone have a winnning combination already?  i saw that the guys
>>from radiostudio.org are already streaming in vorbis (nice one!).  i tried
>to find out what they were doing, but only came across some .exe files
>(which are no good for my purposes) and a tcl script using the snack
>extensions (which opens a pipe to the lame encoder - if i can find a
>beta3 vorbis release, i could maybe compile lame with vorbis and change
>the tcl to suit my needs)

I have a working windows version for ogg/vorbis, but this script does
not work with linux (neither does the lame ostream). I don't know why.
I'm going to write a new one in python, but I don't know when this will
happen.

moerk
(a guy from radiostudio.org :)

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