Re: SABR Micro, DAB+, 3D


How do they arrange that. Generic APIs embodied in .h files are as patentable or copyrightable as phone books, that is not at all. I feeds it baseband it spits out audio I don't know how I just works. On the other paw, I am with you. And if AAC patent goes into the pooper hole in October that's not too long a wait.


On 20210630 06:43:52, Simon Brown wrote:



When it comes to licencing I prefer to be squeaky clean. AAC patents lapse in ~ 6 years in Europe I think. I have a $1k up-front cost, then $1 / user. I doubt there would be enough interest to cover the $1k but first I have to write the DAB code.


As for Audacity and other DAB+ programs, just exposing the AAC interface is a sin, so everyone who ships and/or just hosts a DAB+ plugin is liable for AAC licence fees. The fact that you have to grab a AAC plugin from somewhere dodgy is immaterial.


There are a couple of small companies which examine software such as mine looking for infringements, I own my own house and plan to keep it that way 😊 .


Simon Brown, G4ELI


From: <> On Behalf Of BobS via
Sent: 30 June 2021 14:25
Subject: Re: [SDR-Radio] SABR Micro, DAB+, 3D


While dealing with AAC licensing would be tedious, having it as a plug-in also means that you don't have to worry about licensing DAB/DAB+ to users for whom it's useless, like those who in the United States of America and Canada.

From my perspective, having the converse (decoding IBOC) would be great to have in SDR Console. But that too is protected by patents and licensing, and you'd either have to work from WAV files or take a working vacation to North America. When I want to listen to HD-Radio (the not-accurate, but marketing name), I just use the NRSC5 software. I would guess it too violates the patents and licensing, but it's user base is most likely so small that it goes under-the-radar.

Or you could have a technically legal, but slimy solution like Audacity does for MP3 and AAC. They link to plug-ins that are on a server that's located in Brazil, which doesn't honor patent law.

Nonetheless, that's a cool long periodic antenna!

Bob, W4RLS

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