J
Joerg
Guest
On 2020-07-31 14:54, John Larkin wrote:
The longest latency was near a campground in the boonies, Southern Utah
or Northern Arizona. A young German couple wanted to make a phone call
to Europe. The campground manager said to follow the singing wires until
there is a phone on a pole, to take LOTS of quarters and to watch for
rattlesnakes. Half hour walk or so. They came back sad. I asked what
happened. \"We can\'t understand the operator at all, he sounds like
having a hot potato in his mouth\". So I went with them, talked to the
operator, then once the call was connected handed over the receiver. On
the way back I asked them what their professions were. He was an English
teacher (!).
--
Regards, Joerg
http://www.analogconsultants.com/
On Fri, 31 Jul 2020 22:12:08 +0200, Jeroen Belleman
jeroen@nospam.please> wrote:
On 2020-07-30 23:50, Sjouke Burry wrote:
On 30.07.20 23:39, Jeroen Belleman wrote:
On 2020-07-30 22:16, Joerg wrote:
On 2020-07-29 21:40, Joe Chisolm wrote:
[...]
ITU says 150ms one way, so called \"mouth to ear\". Cisco says that
can be pushed to a 200ms budget. Also > 30ms packet jitter can be
a problem. If you examine the video you normally see very little
movement with a conference. Some static power point slide while
people talk. Even video of people talking the back ground is very
static. Frame to frame compression can be very high, thus video
can be good but audio is poor.
Problem is, even with only 150msec it can take up to a 1/3rd of a
second (rount trip) to realize that the other guy must have started
talking at the same time. Then we both stop, both start again, stop
again, the usual. A 1/3rd of a second is a long time for audio.
Agreed! 150ms delay in a conversation is far too much. It
completely breaks the flow. I hate digital phones. I can\'t
stand video conferencing. How can people possibly tolerate
this?
Jeroen Belleman
They tolerate it, because they are unable to shrink the earth,
and/or built computers/networks which are 1000 times faster.
You have evidently never used an old analog phone. No perceptible
latency, no drop-outs, no weird distortions. But that era is well
behind us.
Jeroen Belleman
Latency? You had to call the operator to set up a long-distance call.
She\'d call back when they were ready.
The quality could be really bad.
The longest latency was near a campground in the boonies, Southern Utah
or Northern Arizona. A young German couple wanted to make a phone call
to Europe. The campground manager said to follow the singing wires until
there is a phone on a pole, to take LOTS of quarters and to watch for
rattlesnakes. Half hour walk or so. They came back sad. I asked what
happened. \"We can\'t understand the operator at all, he sounds like
having a hot potato in his mouth\". So I went with them, talked to the
operator, then once the call was connected handed over the receiver. On
the way back I asked them what their professions were. He was an English
teacher (!).
--
Regards, Joerg
http://www.analogconsultants.com/