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Admin Question -- Live screen demo sessions again

Phil O

Member
Location
Plymouth.
Hi Martin,

I have been tuned in for a short while and one thing I have noticed is that your commentary is a lot clearer on this format than the previous Scaleforum one and no buffering like the last version.

Thanks

Phil.
 
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Martin Wynne

Admin
Location
West of the Severn UK
Info
Please do not send requests for help direct to me via email.

Post your questions on the forum where everyone can see them and add helpful replies.
Thanks to everyone who joined me this afternoon to test the new streaming. :)

As suggested I am now testing it at 16:9 ratio instead of 4:3. I didn't want to reduce the height because it makes it difficult to show all the menu items. So I have increased the width accordingly, and it is now streaming at 1664 x 936.

That has meant a 33% increase in the stream data. I expected that to cause a reduction in the image quality, but so far it seems mostly ok. It takes a bit longer than before to settle down, but then seems to do ok. It's showing now at:

https://85a.uk/templot/companion/live_screen.php

The best way to view it is probably to hold down the SHIFT key and click:

https://player.twitch.tv/?channel=martintemplot&parent=85a.uk

It will then open in a separate window which you can resize for the best fit on your screen. With or without the Chat alongside in this window.

I'm not doing a demo just now, but please watch the flashing red indicator for a while and report any glitches or buffering. Thanks.

cheers,

Martin.
 
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Hi Martin,
Just viewed the current livestream and it looks fine, quality is OK and no buffering seen.

As to the timing of the sessions, I really don't know what to suggest as best for me. I can be available most times ( along with Tony ) but interest in the session is likely to be greater if the session covers operations that I am not familiar with.

Is it possible to take peoples requests and announce that the session this week will cover catch points, stub turnouts and making the most of DXF output ( just examples ) so that people know in advance what is being covered. If something then happens last minute and anyone can't join in they can always catch up later.

If I had to give some times/days then maybe Saturday/Sunday starting at 19:00 :) I usually stay home weekends reserving the weekdays for my shopping, fishing and trips to Wales ( after the 12th of April...)

Rob
 
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Paul Boyd

Member
Location
Loughborough, UK
I just thought I’d have a look using Safari on my iPad, and it works really quite well. Although obviously a small screen, the video is crisp and clear, with text clearly legible (with my reading glasses on!)

Oh, 68Mb/s download, 18Mb/s upload, on a nominally 80/20 package. I make extensive use of cloud services so fast upload is important.

Cheers,
Paul
 
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Martin Wynne

Admin
Location
West of the Severn UK
Info
Please do not send requests for help direct to me via email.

Post your questions on the forum where everyone can see them and add helpful replies.
Thanks Paul.

The mystery to me is how it manages to catch up. When it starts it is about 40 seconds behind on the time ticker. The delay gradually reduces, it is now only 10 seconds behind. I suppose that's one way to be sure the system is coping with the data rate -- if the delay is increasing, sooner or later it is going to fail and start buffering.

Is that 80/20 broadband ordinary ADSL from the cabinet, or do you have cable?

cheers,

Martin.
 
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Paul Boyd

Member
Location
Loughborough, UK
Thanks Paul.

The mystery to me is how it manages to catch up. When it starts it is about 40 seconds behind on the time ticker. The delay gradually reduces, it is now only 10 seconds behind. I suppose that's one way to be sure the system is coping with the data rate -- if the delay is increasing, sooner or later it is going to fail and start buffering.

Is that 80/20 broadband ordinary ADSL from the cabinet, or do you have cable?

cheers,

Martin.
That’s from the cabinet which is only a couple of hundred yards away, if that.

I wonder if there’s some frames dropping somewhere, so it appears to catch up?
 
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Martin Wynne

Admin
Location
West of the Severn UK
Info
Please do not send requests for help direct to me via email.

Post your questions on the forum where everyone can see them and add helpful replies.
I wonder if there’s some frames dropping somewhere, so it appears to catch up?

Yes, there's a trail of them across my carpet from the computer to the TV. :)

I wish I'd thought of using the TV to watch the streaming earlier, it's much easier than having them side-by-side on the screen.

My cabinet is not much further, but no-one is offering me those speeds.

cheers,

Martin.
 
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Martin Wynne

Admin
Location
West of the Severn UK
Info
Please do not send requests for help direct to me via email.

Post your questions on the forum where everyone can see them and add helpful replies.
Is it possible to take peoples requests and announce that the session this week will cover catch points, stub turnouts and making the most of DXF output ( just examples ) so that people know in advance what is being covered.
Hi Rob,

Sure. I just need to know what's wanted.

Ideally each session would contain something for beginners, and also something more out of the ordinary for more experienced users.

Or maybe alternate between beginner sessions and the more complex stuff.

cheers,

Martin.
 
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Charles Orr

Member
Location
Leicester UK
Hi Martin,
Just had a look.
I can see much more of the screen now.
I'll attach a screen shot to this, I have fibre to cabinet which is just up the road provided by ZEN which gives me 75Mb/s download and 20 Mb/s upload.
Whole_Screen_Grab.png
 
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Martin Wynne

Admin
Location
West of the Severn UK
Info
Please do not send requests for help direct to me via email.

Post your questions on the forum where everyone can see them and add helpful replies.
It turns out that Twitch keeps a recording of a broadcast live stream, which is available on demand for 14 days afterwards.

The upside of this is that it saves me the considerable time and effort of editing the recorded clips into a sensible video and putting them online.

The downside is that you get a raw recording of the session with no opportunity to edit out all the breaks, pauses, mis-clicks and mistakes.

So if you want to watch the session which we did on Saturday, you can find it here for the next 14 days:

https://twitch.tv/martintemplot/videos

I did enter some notes and information about what it contains, but how you get to see them I don't know. No doubt all will become clear as we get used to using this system.

edit: several Twitch users complaining that the description notes don't show anywhere. So I have added them to the video title, which you can see by hovering the mouse over the video thumbnail image.

Being a raw recording it starts in the middle of nowhere and ends in the middle of nowhere about 90 minutes later. To hear the audio you may, or may not, need to unmute the loudspeaker icon. To confuse you, there is no sound for the first few minutes of the recording.

The wide black column is caused by a mismatch in the aspect ratios. That won't happen on future recordings.

I will scrap the Live Screen Archive page and provide the above link instead.

Because the recordings remain online for 14 days only, I will also keep a recording of each session here. But I won't do anything with it unless I get a specific request for it after the 14 days are up.

cheers,

Martin.
 
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Phil O

Member
Location
Plymouth.
Hi Martin,

I have this afternoon managed to watch the entire broadcast and I can say that I have learned a few more tricks from it, how long I manage to remember them is another matter.

Thanks.
 
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Tony W

Member
Location
North Notts
Hi Martin.
As I managed to miss the beginning of the live session I have just watched the first part of the recording through my better laptop (64bit rather than 32) with a wide screen. The result is much clearer and I have a bit more volume to play with. I like the occasional bird song in the background. Like Phil, I have learned a few things too.

Thanks
Tony.
 
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Martin Wynne

Admin
Location
West of the Severn UK
Info
Please do not send requests for help direct to me via email.

Post your questions on the forum where everyone can see them and add helpful replies.
I like the occasional bird song in the background.

Thanks Tony.

Sorry to disappoint you if you imagine I'm broadcasting while sitting in the garden in the sunshine. :)

The bird song is from the clock on the wall behind the computer. It plays a different bird song on the hour. I didn't realise it was being picked up by the microphone!

cheers,

Martin.
 
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Martin Wynne

Admin
Location
West of the Severn UK
Info
Please do not send requests for help direct to me via email.

Post your questions on the forum where everyone can see them and add helpful replies.
It turns out that Twitch keeps a recording of a broadcast live stream, which is available on demand for 14 days afterwards.

The upside of this is that it saves me the considerable time and effort of editing the recorded clips into a sensible video and putting them online.

The downside is that you get a raw recording of the session with no opportunity to edit out all the breaks, pauses, mis-clicks and mistakes.

So if you want to watch the session which we did on Saturday, you can find it here for the next 14 days:

https://twitch.tv/martintemplot/videos

I've had a change of heart on this. 14 days isn't very long for those who might have missed the live demo. And it's possible I may want to refer back to something in a previous demo. But mainly because the Twitch web site is so clunky to use.

So I shall continue to keep an archive of the demo sessions. But unlike the first few clips I did, I won't make any attempt to clean up the recordings or add title cards, etc. With the size of files involved it just takes too long.

Which means last Saturday's live session is now in the archive, labelled Demo 001:

https://85a.uk/templot/companion/live_screen_archive.php

and will remain there indefinitely.

cheers,

Martin.
 
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Phil O

Member
Location
Plymouth.
Hi Martin,

That's great news, I can refer back when I forget something that I learned from it, the same as the old video tutorials.

Many Thanks.
 
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