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2 expanded posts ยท every known parent and child

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Does anyone know of C source code for low speed CELP or vocoder
software available on the net?  

I feel if we can develop even a low-speed software based answer to
the secure-phone, it will probably be used and distributed to many
people.  I think it would have to be based around the soundblaster
card though.

Perhaps we can also devise an internet secure-phone standard, and
clients can be written for NeXTs, Suns, PCs, and etc.  

I've had no luck getting our SparcStations to decompress ADPCM encoded
Internet Talk Radio in real time...either the software I have is truly
sad (could be), or we need to look at other compression methods
such as CELP, or at worst, vocoder.

- -Thomas
 

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NODE ac9143f3Re: your mail
> Does anyone know of C source code for low speed CELP or vocoder
> software available on the net?  
> 
> I feel if we can develop even a low-speed software based answer to
> the secure-phone, it will probably be used and distributed to many
> people.  I think it would have to be based around the soundblaster
> card though.
> 
> Perhaps we can also devise an internet secure-phone standard, and
> clients can be written for NeXTs, Suns, PCs, and etc.  
> 
> I've had no luck getting our SparcStations to decompress ADPCM encoded
> Internet Talk Radio in real time...either the software I have is truly
> sad (could be), or we need to look at other compression methods
> such as CELP, or at worst, vocoder.
> 
> - -Thomas

Have you looked at netphone?  That should be fairly easy to hack to include
encryption, although I haven't looked at the source..
-- 
Ed Carp				erc@wetware.com			510/659-9560
   For anonymous mailers -->   anonymus+5300@charcoal.com
"Disagreements are not meant to be challenges.  They are just a different
 reality."  -- Risa D'Angeles