Re: [Discuss-gnuradio] DV Dongle - AMBE USB Device

[Rick Parrish]

Jeff Brower wrote:
> If you're looking at low bitrate codecs for GNU radio, why use a 
> hardware (dongle)dependent solution? You might look at MELPe, which 
> provides 600, 1200, and 2400 bps,and can be implemented as a software 
> solution. MELPe is a US/NATO standard (STANAG4591). Common 
> applications are HF radio and L band satellite apps where bandwidth is 
> very limited.
My interest is what is actually being used - which in the case of public 
safety communications is the P25 variant of IMBE. FWIW, a closed source 
PC hosted IMBE vocoder exists now.