Jim,
Thank you for those comments. It's going to take a collaborated effort
to put it all together, but I think it will happen.
Tony -K2MO
On 8/26/2010 11:28 PM, J. Moen wrote:
This is very, very good news, and it may turn out to be a very big
deal. It will be fun to hear reports from the early adopters. There
aren't many people who can write this kind of code -- if you like
where Dave is headed, you may want to donate to his CODEC2 effort
that's referred to in the link below.
Ever since we all discovered that MELP was not legally available,
we've all been waiting for something good that's open source. CODEC2
may allow a narrow enough bandwidth for widespread use on HF, and it
may provide an alternative for VHF/UHF digital voice in the future.
While I don't begrudge D-Star's use of the $25 AMBE proprietary codec
on a chip, that approach prevents the kind of experimentation that
hams are famous for. A software only codec would be very welcome as
the future unfolds....
Jim - K6JM
----- Original Message -----
*From:* Tony <mailto:d...@optonline.net>
*To:* digitalradio@yahoogroups.com
<mailto:digitalradio@yahoogroups.com>
*Sent:* Thursday, August 26, 2010 12:24 AM
*Subject:* [digitalradio] Digital Voice News - VK5DGR's Open
Source Codec
All,
Dave Rowe, VK5DGR, has just released an open source speech codec that
could potentially be used in such digital voice applications as FDMDV
and WinDRM. Dave says that his new CODEC2 needs work, but the speech
quality of the Alpha release is pretty good. He has a few audio
samples
of CODEC2 and the proprietary codec MELP (for comparison) on his
website:
http://www.rowetel.com/blog/?page_id=452
For more information, visit Dave's main site at
http://www.rowetel.com/blog/
Tony -K2MO
