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Dave says that his new CODEC2 needs work, but the speech Subject: Digital Voice News - VK5DGR's Open Source Codecĭave Rowe, VK5DGR, has just released an open source speech codec thatĬould potentially be used in such digital voice applications as FDMDVĪnd WinDRM. Most of the following products are supported by the G4KLX open source Multi-Mode programs. DVMEGA DVstick30 and DVstick33 - Excellent AMBE3000 and AMBE3003 USB sticks. It comes in a very convenient USB stick form-factor.
OPEN SOURCE AMBE CODEC SOFTWARE
A software only codec would be very welcome as the future unfolds. ThumbDV(tm) from Northwest Digital - This is a good product and I have used it. 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. 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. 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.Įver since we all discovered that MELP was not legally available, we've all been waiting for something good that's open source. It will be fun to hear reports from the early adopters.
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One of the most impressive things it did was to bring together three, competing open source codecs Ciscos Thor, Googles VP10, and Mozillas Daala into one development effort. This is very, very good news, and it may turn out to be a very big deal. It was positioned as a replacement for Google’s own open source video codec VP9 and as a direct competitor against HEVC.