Cross Streaming Technical Test (With Bao)

Since the last time we cross streamed during the lesson:

part 2. Adventure in ADM

Posted by ZiFeng Ong on Thursday, 14 September 2017

Video from my phone which I am unable to embed in this post, not sure why but all the setting are the same, >>CLICK HERE FOR VIDEO<<

we noticed that there were two major flaws in the cross streaming system, During that lesson, we used Bao’s Windows Laptop and my phone, both connecting to the ADM internet, since the Laptop were supposed to stream a live video and produce a stream at the same time, we could say that it is downloading and uploading at the same time hence the total bandwidth the computer had was split into two. The biggest problem we found in the cross streaming was that by having the phone connecting to the school internet, every time when the phone goes to a different area in ADM, there will be a short breakage with the connection in the Live video as the Wifi connection changed router, moreover, if the phone Wifi isn’t strong, the quality of the live video drop drastically, The lagginess was amplified by the low bandwidth of the computer, its as good as watching an already choppy movie with lousy dial-up internet, the overall experience wasn’t good.

HENCE! Through reverse engineering, by judging from the quality of the video, we could see which area in ADM have the best internet connection!
The connection in the classroom was the worst. look at the pixelated graphics, I am not moving and yet the terrible quality.
The Internet connection at basement was as bad as in the class, everything was blurry, cant even recognize the people in the video, BAAADD~
The Stairs to the basement doesn’t seem to have good connections and blurry visual doesn’t look pleasing at all.
The Lounge was having generally acceptable connection and hence the better quality
The Lounge’s connection was really stable and the quality is great
IM room got one of the best connection out of all place and the graphical quality was superb even when I was swinging the camera around. (Please scroll up to see the quality of the basement classroom, you will notice a clear difference in the relationship of better internet = better video.)

 

This is why, we will solve it, by hook or by crook.

The easiest problem to solve was when the phone connects to the school Wifi and the connection breaks when the phone switch router among ADM. Since the problem is with school’s Wifi, we tried to use our own phone’s Mobile Data, there was almost no lag and furthermore, the quality of the stream improved drastically due to the faster uploading speed from the phone, resulting in higher definition of the live stream.

Songyu Bao experiment 1

Posted by ZiFeng Ong on Tuesday, 19 September 2017

Notice that when I changed zone within ADM, from IM room all the way to the handicap lift near the library, there was no breakage of the connection even in the handicap lift. This, I must say, is a great improvement.

Next, is the problem of watching stream and uploading a stream from the computer and split the bandwidth into two, there is no way around it, the only approach we can do is to find a place with good internet connection and make sure that the speed will be sufficient to produce excellent streaming experience. AND GUESS WHICH PLACE IN ADM HAVE GOOD INTERNET? So, without further ado, we went to the IM room as the internet connection was relatively stable there.

Again, I can’t figure out why the Video doesnt want to embed, so.. >>CLICK HERE FOR TEST VIDEO FROM BAO<< 

but here’s the Screen shot from the video Bao and I Crossstreamed 

Overall through our test, it worked really well with minimal lag and there were no disconnections, quality were much better than we thought and we hope that we could be replicated it during the class.

 

 

Author: Ong Zi Feng

Just doing things, making stuffs.

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