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Discussion Groups | Speech Coding | Sub 2400bps coding

Technical discussions related to Speech Coding (all itu and other vocoders, ACELP, CELP, AMR, etc)

  

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Sub 2400bps coding - Author Unknown - Sep 21 9:49:00 2001



Does anyone have any recommendations on speech coding algorithms
<2400bps? I need a low data rate codec for an amateur radio
experiment I'm planning. I've been looking at MELP, but I noticed the
DoD are looking for 600bps algorithms. I've also noticed TI are
selling DSPs for toys with 1000bps MELP codecs.

Can anyone give me pointers to papers/code?

Peter





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Re: Sub 2400bps coding - Jeff Brower - Sep 22 1:46:00 2001

Peter-

>Does anyone have any recommendations on speech coding algorithms
><2400bps? I need a low data rate codec for an amateur radio
>experiment I'm planning. I've been looking at MELP, but I noticed the
>DoD are looking for 600bps algorithms. I've also noticed TI are
>selling DSPs for toys with 1000bps MELP codecs.

What's wrong with 1200 bps DOD version of MELP?

Jeff Brower
Signalogic




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