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{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/ZPECG2EIEEYZRP6QUS373Q7KB2VSPUAS/?format=api", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api", "message_id": "1303555059.7085.49.camel@saito", "message_id_hash": "ZPECG2EIEEYZRP6QUS373Q7KB2VSPUAS", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/QTJJ3METCMSEEET5WELOFRUPK5OBSELC/?format=api", "sender": { "address": "gordonjcp (a) gjcp.net", "mailman_id": null, "emails": null }, "sender_name": "Gordon JC Pearce", "subject": "[amsat-bb] Re: Icom D-Star", "date": "2011-04-23T10:37:39Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/LUAA6UZC6TFNW62QGAFMVMSDXVCBVYUY/?format=api", "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/YTYY7GIYY5YDBZMBRPWGCXEHCIIB3NEO/?format=api" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "On Sat, 2011-04-23 at 20:00 +1000, Tony Langdon wrote:\n> At 07:33 PM 4/23/2011, you wrote:\n> \n> >The chips are \"readily available\" at a few hundred dollars apiece, and\n> >if you attempt to implement your own AMBE codec then you're going to\n> >have DVSI's lawyers jumping on you.\n> \n> More like $20 apiece in small (possible 1 off) quantities.\n\nI'd love to know where you're seeing them for that much in onesy-twoesy\nquantities\n\n> >Proprietary software has no place in Amateur Radio.\n> \n> It's hardware with firmware. So let's throw out all the other \n> proprietary bits (processors with embedded code, etc) and go back to \n> soldering valves?\n\nYes, throw out the proprietary bits. Write your own, it's easy.\n\n> The simple fact of the matter was back around 2000 when the D-STAR \n> spec was developed, there weren't a lot of choices for how to \n> compress speech into 2.4kbps and have FEC. AND have it available in \n> a suitable form for implementation into mobile and handheld \n> radios. While the proprietary codec is a minor inconvenience in some \n> situations, it's proved to be no impediment to home brew enhancements \n> to D-STAR. The number of ham developed D-STAR projects is \n> significant, so that one chip hasn't proved to be an impediment to \n> ham experimentation in practice.\n\nYes, \"back around 2000\". It's over ten years old. We have better\ncodecs and better modulation schemes now. Why are we crippling digital\ncomms with a single-source proprietary codec that sounds like an angry\nduck in a tin outhouse?\n\nThe commercial world is no better - just look at DMR, which uses the\nsame awful AMBE codec!\n\nGordon MM0YEQ\n\n", "attachments": [] }