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From: | Rick Parrish |
Subject: | Re: [Discuss-gnuradio] DV Dongle - AMBE USB Device |
Date: | Wed, 19 Mar 2008 19:38:13 -0500 |
User-agent: | Thunderbird 1.5.0.7 (Windows/20060909) |
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.
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