Helmut, it's not only on HF, even towards microwave with AWGN channel SSB is unbeatable.
But intelligibility is greatly improved at marginal signals with Codec2, and there are other use cases too, like IP transit, the stuff Alan wants to work on and the M17 project is doing as well. This is a well beaten path for me, the difference being I took the tradeoff of transcoding to a single codec for transport. Adrian On December 7, 2020 9:29:23 AM UTC, Helmut Oeller <[email protected]> wrote: >Why does nobody confess that on HF or outside the laboratory no digital >mode can compete with SSB? Reliability, interference immunity and >fault-free operation under bad ionospheric conditions are unbeatable. > >DC6NY > >Am 07.12.2020 um 09:53 schrieb Adrian Musceac: >> Everybody is entitled to an opinion, that doesn't mean we all have to >> share it. >> Mode 700C sounds fine for the bitrate, and so does mode 1400 and >1600. >> >> David you've made a great effort with them, we're more than a few >> users who never use HF and are perfectly satisfied with the current >> technology in Codec2. >> >> And we're not all on the hype train for neural net blackbox stuff >that >> Google and other big co. are trying to push towards us. >> >> Adrian >> >> On December 7, 2020 5:36:44 AM UTC, Random <[email protected]> wrote: >> >> *Skyler's reply: >> * >> *Digital voice also sounds like crap >> * >> >> Well， if you use LPCNet+Codec2 at 2400bps， it sounds pretty good. >> >> There are some NPU (neural processing unit) which can run LPCNet. >> >> >> ------------------ Original ------------------ >> *From:* "freetel-codec2" <[email protected]>; >> *Date:* Mon, Dec 7, 2020 01:30 PM >> *To:* "freetel-codec2"<[email protected]>; >> *Cc:* "Al Beard"<[email protected]>; >> *Subject:* [Freetel-codec2] Do we need these comments >> >> Date: Sun, 6 Dec 2020 14:24:45 -0700 >> Re: [repeater-builder] Finding good sites.msg >> From: "Skyler Fennell" <[email protected]> import address >> [email protected] block email [email protected] >> block SMTP relay >> web01.groups.io >> Reply-To: [email protected] >> To: [email protected] >> Subject: Re: [repeater-builder] Finding good sites >> >> >I Alan write: >> >Now here's where Digital Voice solves two BIG problems on HF: >> >> *Skyler's reply: >> Digital voice also sounds like crap >> * >> On Sun, Dec 6, 2020 at 1:35 PM Alan Beard via groups.io >> <[email protected]> wrote: >> >> <snip> <snip> >> >> --------------------------------------------------- >> Alan VK2ZIW >> Before the Big Bang, God, Sela. >> OpenWebMail 2.53, nothing in the cloud. >> >> >> >> _______________________________________________ >> Freetel-codec2 mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/freetel-codec2
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