... and yet I use Skype on a laptop--> wifi-->home router-->Indian
copper==>Cloud==>Skype Out UK-->POTS
and quality varies between quite acceptable and excellent. I don't
bother with a headset, I tried a Sype handset but I'm happier just
talking to the laptop. It's also ridiculously cheap - I've put 20 quid
on it in two years and there's £8 left.
When I think about the end-to-end complexity of this I am absolutely
gobsmacked that it works at all.
But then I still can't get my head around the fact that my mobile phone
packs vastly more power and storage than e.g. the American Airlines
Reservation system which was the largest commercial computer set-up in
the world in the early sixties.
On 06/03/2014 18:07, Ted Roche wrote:
On Thu, Mar 6, 2014 at 12:23 AM, AndyHC <[email protected]> wrote:
24bit? - and good old POTS used to be restricted to about a 4khz band!
24 bit is lovely if you're working with hi-res audio files, but most of the
speech codecs like Speex (http://www.speex.org/) and Opus (
http://opus-codec.org/) (and their commercial equivalents) still support
lower rates (8 and 6 kbps) used by a lot of the VOIP providers and
endpoints.
I still think that analog POTS had a more natural tone than the digital,
compressed, jittery, latency-plagued digital signals. Professionally-wired
and configured Voice-Over-IP with proper prioritization are comparable to
copper landline, while home users who hang a bluetooth headset
(analog->digital->radio->digital) to underpowered computers to Wifi to home
routers tend to have pretty poor quality sound.
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