Fascinating stuff there David. I can't wait see this progress through the development cycles.
All the best.. Walter/K5WH -----Original Message----- From: David Rowe [mailto:da...@rowetel.com] Sent: Monday, June 26, 2017 5:25 PM To: freetel-codec2@lists.sourceforge.net Subject: [Freetel-codec2] Codec 2 wideband As Tomas suggests, I have been working on a wideband mode: http://www.rowetel.com/?p=5711 I'm currently using a 2D DCT approach (bit like JPG) to code a version of the spectrum. VQ could also be used. We don't really need to reg-generate the upper 4kHz as it doesn't take many bits to encode it faithfully (perhaps 20% more than the first 4kHz). The log(f) response of the ear means there isn't much info there we can actually perceive. - David ---------------------------------------------------------------------------- -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
