I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
TIA
Alan
I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
TIA
Alan
I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?
I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
TIA
Alan
On 02/04/2021 22:39, pinnerite wrote:
I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
TIA
Alan
For basic info try installing wavemon (runs on Ubuntu)
On Sat, 3 Apr 2021 07:46:31 +0300
Henry Crun <mike@rechtman.com> wrote:
On 02/04/2021 22:39, pinnerite wrote:
I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
TIA
Alan
For basic info try installing wavemon (runs on Ubuntu)
I installed wavemon on the mythtv server machine via ssh.
I am not sure whether what it reports is about the internal wi-fi stuff or the quality of its connection via the router to the outside world.
I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
TIA
Alan
On 02/04/2021 08:39 pm, pinnerite wrote:
I have been experiencing jerkyness streaming live HD TV from MythTV
over wi-fi to my work computer. SD is fine and both are fine on the
MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi
bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
TIA
Alan
Are you using 2.4GHz or 5GHz?
5GHz will give a better data rate.
HD needs more data then SD.
Chris Elvidge wrote:
On 02/04/2021 08:39 pm, pinnerite wrote:
I have been experiencing jerkyness streaming live HD TV from MythTV
over wi-fi to my work computer. SD is fine and both are fine on the
MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi
bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
TIA
Alan
Are you using 2.4GHz or 5GHz?
5GHz will give a better data rate.
HD needs more data then SD.
Additionally, what it distance between server and tv? What is between
server and tv? What channel are you using and proximity to other
networks on the same channel? 5GHz will have higher through put than
2.4GHz but at the expense of range and sensitivity to interference. All
the advantages of the wire over wireless.
On 02/04/2021 08:39 pm, pinnerite wrote:
I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
TIA
Alan
Are you using 2.4GHz or 5GHz?
5GHz will give a better data rate.
HD needs more data then SD.
I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
TIA
Alan
On 4/3/21 9:11 AM, Jonathan N. Little wrote:
Additionally, what it distance between server and tv? What is betweenAgreed. When I got my first dual-band router, I thought I'd use the 5GHz
server and tv? What channel are you using and proximity to other
networks on the same channel? 5GHz will have higher through put than
2.4GHz but at the expense of range and sensitivity to interference. All
the advantages of the wire over wireless.
band on my laptop, leaving the lower frequency to my brother so we
didn't have to share the bandwidth on the lower frequency. But, I soon learned that when I put a couple of walls and a floor between my router
and laptop, 5Ghz was actually the slower of the two.
On 02/04/2021 20:39, pinnerite wrote:
I have been experiencing jerkyness streaming live HD TV from MythTV
over wi-fi to my work computer. SD is fine and both are fine on the
MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi
bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
TIA
Alan
Why not stop worrying about "bandwidth" (whatever that means to you) and check the actual connection speed, just like any normal phone or laptop
user would ?
Theres no mention of it anywhere in this thread
AT
On 4/4/21 2:01 am, Abandoned_Trolley wrote:
On 02/04/2021 20:39, pinnerite wrote:
I have been experiencing jerkyness streaming live HD TV from MythTV
over wi-fi to my work computer. SD is fine and both are fine on the
MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi
bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
TIA
Alan
Why not stop worrying about "bandwidth" (whatever that means to you)
and check the actual connection speed, just like any normal phone or
laptop user would ?
Theres no mention of it anywhere in this thread
AT
Why has it changed now? Has the environment changed, including
humidity, etc.? I sometimes find that switching between 2.4 GHz and 5
GHz helps. As a Ham Radio licensee, I am used to the concept of random changes in communication range, usually associated with the 11-year
sunspot cycle, but those effects occur in the ionosphere, not locally.
Even so, line of sight communication can vary.
[Trying to send this to all 3 groups, I receied a "Forbidden cross-post" message. I have no idea why: 3 groups are usually O.K.]
On 2021-04-02, pinnerite <pinnerite@gmail.com> wrote:
I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
The bandwidth is probably more determined by that last 20 feet than
anything else, and that is NOT determinable by any generic statements.
Ie, the wireless part between your computer the modem. It will depend on environmental noise (is your microwave running) by intevening walls (eg
steel studs), the positioning of the antennae, etc.
On 02/04/2021 08:39 pm, pinnerite wrote:
I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
TIA
Alan
Are you using 2.4GHz or 5GHz?
5GHz will give a better data rate.
HD needs more data then SD.
On 02/04/2021 20:39, pinnerite wrote:
I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
TIA
Alan
Why not stop worrying about "bandwidth" (whatever that means to you)
and check the actual connection speed, just like any normal phone or
laptop user would ?
Theres no mention of it anywhere in this thread
Abandoned_Trolley <someone@microsoft.com> writes:
On 02/04/2021 20:39, pinnerite wrote:
I have been experiencing jerkyness streaming live HD TV from MythTV over wi-fi to my work computer. SD is fine and both are fine on the MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google.
TIA
Alan
Why not stop worrying about "bandwidth" (whatever that means to you)
and check the actual connection speed, just like any normal phone or
laptop user would ?
Theres no mention of it anywhere in this thread
It can vary from moment to moment, and may not mean much anyway. It's
like the "bars" that you see on a typical cell phone that are supposed
to indicate signal strength in a meaningful way. :-)
I've been told about some consumer network equipment that recognizes
when one of the popular speed test sites is being used and prioritizes
that traffic so that speed test results look better. (Doing a "VW," in
other words.)
I know of some other consumer network equipment that learns traffic
patterns and changes its behavior based on them. A streaming 4K video
session will be optimized because it takes place over a long period of
time. A speed test is too short in duration to be optimized for (unless you're cheating like the other company), and it's highly abnormal usage
as well, so the results shown may not reflect real-world usage of the network.
On 04/04/2021 11:19, Bud Frede wrote:
Abandoned_Trolley <someone@microsoft.com> writes:
On 02/04/2021 20:39, pinnerite wrote:
I have been experiencing jerkyness streaming live HD TV from MythTV
over wi-fi to my work computer. SD is fine and both are fine on the
MythTV server.
So, I concluded that it must be limits across the wi-fi.
is there /are there any programs that can demonstrate the wi-fi
bandwith and perhaps how it is bewing sliced up?
I couldn't find anything from a brief search via DuckDuckGo or google. >>>>
TIA
Alan
Why not stop worrying about "bandwidth" (whatever that means to you)
and check the actual connection speed, just like any normal phone or
laptop user would ?
Theres no mention of it anywhere in this thread
It can vary from moment to moment, and may not mean much anyway. It's
like the "bars" that you see on a typical cell phone that are supposed
to indicate signal strength in a meaningful way. :-)
I've been told about some consumer network equipment that recognizes
when one of the popular speed test sites is being used and prioritizes
that traffic so that speed test results look better. (Doing a "VW," in
other words.)
I know of some other consumer network equipment that learns traffic
patterns and changes its behavior based on them. A streaming 4K video
session will be optimized because it takes place over a long period of
time. A speed test is too short in duration to be optimized for (unless
you're cheating like the other company), and it's highly abnormal usage
as well, so the results shown may not reflect real-world usage of the
network.
I am well aware of all of that. However, there is still no mention at
all of the connection speed anywhere in this thread.
More importantly, theres no mention of any attempt to ascertain the
actual (wired or fibre) download speed from the ISP to the router (which DOES NOT vary from moment to moment) which is more likely to be the
cause of the problem.
I would check the admin page of the router and see what the downstream
line rate is and work from there. If it looks like its OK then (if
possible) it might be an idea to make a temporary WIRED connection to
the router and see if that cures the problem. If it doesnt, then clearly
its not a wi-fi issue.
Nothing I have seen in this thread so far conclusively proves that the
wi-fi is at fault.
AT
Why not stop worrying about "bandwidth" (whatever that means to you) and check the actual connection speed, just like any normal phone or laptop
user would ?
Theres no mention of it anywhere in this thread
AT
On Sat, 3 Apr 2021 16:01:28 +0100
Why not stop worrying about "bandwidth" (whatever that means to you) and
check the actual connection speed, just like any normal phone or laptop
user would ?
Theres no mention of it anywhere in this thread
AT
If I disconnect the phone connection at the router, I still have wi-fi access between my devices.
Recording TV does not depend on the wi-fi. the signal comes from the TV aerial directly to both the TV and the HTPC.
Both my work computer and the TV only handle 2.4Ghz. The remaining items are enabled for that and 5Ghz including a TP-Link wi-fi extender.
Now there is no problem on the combined frontend / backend server presumably because wi-fi is not involved. Similarly, playback to the TV is fine because it is connected by an HDMI cable. Sadly to the remote frontend on my work-machine it is.
The extraordinary thing is that playback of HD via wi-fi to my work machine is fine,
Live TV is not. Logically I would expect them behave the same.
As Ian Lang often says "I blame the EU".
pinnerite wrote:
On Sat, 3 Apr 2021 16:01:28 +0100
Why not stop worrying about "bandwidth" (whatever that means to you) and >> check the actual connection speed, just like any normal phone or laptop >> user would ?
Theres no mention of it anywhere in this thread
AT
If I disconnect the phone connection at the router, I still have wi-fi access between my devices.
Recording TV does not depend on the wi-fi. the signal comes from the TV aerial directly to both the TV and the HTPC.
Both my work computer and the TV only handle 2.4Ghz. The remaining items are enabled for that and 5Ghz including a TP-Link wi-fi extender.
Now there is no problem on the combined frontend / backend server presumably because wi-fi is not involved. Similarly, playback to the TV is fine because it is connected by an HDMI cable. Sadly to the remote frontend on my work-machine it is.
The extraordinary thing is that playback of HD via wi-fi to my work machine is fine,
Live TV is not. Logically I would expect them behave the same.
As Ian Lang often says "I blame the EU".
But you know your MythTV better than anyone here.
The software (not MythTV) for my tuner card, does it this way.
"Live TV"
1) Comes into tuner from OTA antenna.
2) Tuner packets are written to disk. Disk could be on a backend machine.
3) Streaming software reads from disk (delayed maybe a second or two).
4) MPEG2 video now needs to be decoded and sent to a screen, from (3)
This uses a bit of CPU (in the old days), or it uses
the Video SIP on your video card.
The "feature" that comes with this, is while you are watching LiveTV,
you can "commit" what has just been shown, and the file stored on
the hard drive is then kept for later.
The activity in that sequence, might involve two passes on
Wifi, thrashing at the hard drive (reads and writes could be
smoothed a bit via caching), and CPU activity for decode
(which could be moved to a block on the video card).
With your knowledge of how MythTV works, maybe you'll find
a bottleneck similar to the above.
Paul
This morning I had to reboot the router because our cellphones
registered "No Wifi" ot no "Internet connection". This has been
happening throughout the year. Not frequently but often enough.
I am wondering whether the router (supplied by TalkTalk) is actually faulty.
This morning I had to reboot the router because our cellphones registered "No Wifi" ot no "Internet connection". This has been happening throughout the year. Not frequently but often enough. I am wondering whether the router (supplied by TalkTalk) is actually faulty.
Both my work computer and the TV only handle 2.4Ghz. The remaining items are enabled for that and 5Ghz including a TP-Link wi-fi extender.
The extraordinary thing is that playback of HD via wi-fi to my work machine is fine,
Live TV is not. Logically I would expect them behave the same.
Airplane radars even interfere with 2.4Ghz. Are you near an airport?
The only thing you can do about 2.4Ghz interference is "big buffers"
and cross your fingers. Otherwise, ethernet.
On a side note, if your neighbors have frequency hopping APs, you
could "claim" a channel and use iperf to max out bandwidth on several computers for a period of 1-2 hours until they move. It's a little
mean but so what.
From my house I can see at least 6 (and sometimes as many as 10)
access points on 2.4Ghz. Careful choice of channels, directional
antennas, and careful placement of the AP all help. THAT and the
occasional "iperf test" to drive others off of your claimed
channels...
over a decade ago I was involved in doing research on improving the
quality of streaming HD video over wifi. So I have a pretty good grip
on the things you have to deal with when it comes to RF interference, especially on the 2.4Ghz band.
Big Bad Bob <BigBadBob-at-mrp3-dot-com@testing.local> writes:
Airplane radars even interfere with 2.4Ghz. Are you near an airport?
What?
The only thing you can do about 2.4Ghz interference is "big buffers"
and cross your fingers. Otherwise, ethernet.
Big buffers? What?
over a decade ago I was involved in doing research on improving the
quality of streaming HD video over wifi. So I have a pretty good grip
on the things you have to deal with when it comes to RF interference,
especially on the 2.4Ghz band.
Yeah, sure you were. A big "scientist" no doubt.
On 2021-04-23 15:03, Bud Frede wrote:
Big Bad Bob <BigBadBob-at-mrp3-dot-com@testing.local> writes:
Airplane radars even interfere with 2.4Ghz. Are you near an airport?
What?
The only thing you can do about 2.4Ghz interference is "big buffers"
and cross your fingers. Otherwise, ethernet.
Big buffers? What?
Shh... the adults [those with real engeering experience] are talking
Then again... hey look - HE DOESN'T UNDERSTAND!!! Would you like me to draw the lines from A to B to C so that your puny mind can comprehend???
Did you even read the original post about watching video over wifi?
over a decade ago I was involved in doing research on improving the
quality of streaming HD video over wifi. So I have a pretty good grip
on the things you have to deal with when it comes to RF interference,
especially on the 2.4Ghz band.
Yeah, sure you were. A big "scientist" no doubt.
Troll off, bug. Or creep off. whatever.
My name is actually on a provisional patent from around 2008 regarding
this very thing, a method by which wifi packet reliability for UDP can
be improved for transmitting video. You can research the patent. Or not. Up to you.
I bet you went to one of those "schools" where they didn't want to hurt
your self esteem so they went ahead and let you SPOUT PURE BULLSHIT and
then patted you on the back for "participating".
Johnny just said one and one is three. We can't hurt his FEELINGS and
tell him he's wrong. It's ok Johnny, just believe it's three, and
you're a good boy and shouldn't ever get discouraged...
Something like THAT, right?
| Sysop: | Keyop |
|---|---|
| Location: | Huddersfield, West Yorkshire, UK |
| Users: | 292 |
| Nodes: | 16 (2 / 14) |
| Uptime: | 195:05:48 |
| Calls: | 6,616 |
| Files: | 12,166 |
| Messages: | 5,315,464 |
