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> So now you can buy a radio chip for a few bucks and add it to any device. Where? > Think kilobits-per-second, not megabits-per-second. Well, voice is (or w
by 1024core 11y ago
> So now you can buy a radio chip for a few bucks and add it to any device.
Where?
> Think kilobits-per-second, not megabits-per-second.
Well, voice is (or was...) 32kbps, so technically you could make a voice call over these radios, if they can give you 32kbps? I've heard of voice compression as low as 8kbps too. Imagine a cellphone that lasts months :)
- dconrad 11y agohttp://www.digikey.com/catalog/en/partgroup/sx1272-and-sx1273/42224 http://www.digikey.com/catalog/en/partgroup/sx1272-and-sx127...
- jasonjayr 11y agoCodec2 is an open source speech codec, shooting for 700 - 3200 bit/s, specifically for digital voice over radio. http://www.rowetel.com/blog/?page_id=452 http://www.rowetel.com/blog/?page_id=452
- fsiefken 11y agoOpus SILK can go as low as 6000 bs. You can use it in existing VoIP solutions, VoIP over LoRa radio's would be very cool.. but I'm not sure if you can layer tcp/ip on top them yet.