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Re: [Discuss-gnuradio] Any Japanese speakers out there?


From: n4hy
Subject: Re: [Discuss-gnuradio] Any Japanese speakers out there?
Date: Wed, 20 Jul 2005 16:40:47 +0000
User-agent: Mozilla Thunderbird 1.0.2 (Windows/20050317)

As well as SPEEX, etc. I agree with this. I just wanted to make sure we all understood it would not be interoperable but we could use the resource. If we did this, I suspect there would be some
pressure to offer the alternative on the ICOM equipment.

Bob


Matt Ettus wrote:

n4hy wrote:

That will be extremely difficult as the English AMBE specifications are proprietary and undisclosed unless something has changed. Reverse engineering with be legally discouraged
I would imagine.

The specifications from ICOM for the rest of the system are open. So you will able to send (say) SPEEX encoded speech (hoorah for SPEEX) along the D-Star system but be unable
to communicate with their end users doing AMBE.

I got this directly from the Icom person promoting the D Star system at Dayton 2004 in the
technology forum.



AMBE is proprietary, but DStars can also carry GSM encoded voice as well as data.
Matt






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