QUOTE(John42 @ Feb 26 2021, 01:55 AM)
Hey guys may I ask how many of you have complain to Astro regarding their low bitrate picture quality? Has anyone report to MCMC before? I do notice that recently the picture quality has improved a bit these past few days. I am not sure is it only me because I did some settings in the TV for the low picture quality issue on the unifi plus box.
QUOTE(nexona88 @ Feb 26 2021, 01:31 PM)
PQ got improvement huh?
didn't see any differences....
maybe my eye something wrong

QUOTE(John42 @ Feb 27 2021, 02:55 PM)
At last good news for everyone. I really hope the existing HD channels does not ended up getting pixels due to this upgrade. Still you guys need to complain to Astro broadcasting team regarding this pixelation issue on HD channels. I did complained to them back on 26th of December and follow up with them till 9th of Jan 2021. I hope all of you at here do the same 😊
QUOTE(John42 @ Feb 28 2021, 02:07 AM)
The last call I spoke to the broadcasting team was on 4th of Feb. They told me that they are working on this issue and further improvement on the quality depends on the approval from the management team. But since for the last few days there is improvement in the HD channels without visible pixelation I can assume that they are doing something about this which is better than doing nothing.
QUOTE(nexona88 @ Feb 28 2021, 10:33 AM)
Mind asking which HD channel have improvement?
Maybe I can check it out too... To see the improvement you said....
🧐🤔
Bitrate stuff to the Astro's broadcasting teamFollow up on my previous long long
boring posts regarding Astro's bitrate/video/audio quality stuff here:
28 Aug 2020 - Conclusion & Suggestions:
https://forum.lowyat.net/index.php?showtopi...entry9797568327 Aug 2020 - Bitrate - Part 1:
https://forum.lowyat.net/index.php?showtopi...post&p=9797088127 Aug 2020 - Bitrate - Part 2:
https://forum.lowyat.net/index.php?showtopi...post&p=97975113 |
https://forum.lowyat.net/index.php?showtopi...post&p=9797509927 Aug 2020 - Audio:
https://forum.lowyat.net/index.php?showtopi...post&p=9797182126 Sep 2020 - So-called "pixel ghosting":
https://forum.lowyat.net/index.php?showtopi...post&p=9831311811 Jan 2021:
https://forum.lowyat.net/index.php?showtopi...post&p=995708837 Feb 2021:
https://forum.lowyat.net/index.php?showtopi...post&p=99912070------------------------------------------------------------------------------------
As you guys have known, Astro is going to cease some of its simulcast SD channels starting 1 March 2021 (tomorrow).
https://forum.lowyat.net/index.php?showtopi...ost&p=100132648So let's see what are the changes they have made before tomorrow.
See the comparison below (Left is 6 Feb 2021, Right one is 28 Feb 2021):

For example, this Measat 3b transponder 10772MHz, they finally removed the
wasting-space "?" 384-448kbps audio tracks on those HD channels. Nice
So, video quality has been improved? However, with the "?" tracks being removed and now it has some free transponder bandwidth space, it appears that
they have not increase the video bitrate on all channels to utilise entire 72Mbps bandwidth per transponder (8PSK 5/6).
Bandwidth have been freed up a bit, but video quality remain unchanged, for now?As you can see on the screenshot above (bottom right corner), it is approx. 66Mbps instead of around 72Mbps max.
I guess is, they have not completed the "optimising works" yet? Hmm, we'll just have to give some time for them to complete the remaining works...
How about other transponders?I have been always analyses their every single transponders, from 10732MHz all the way to 12436MHz.
There are some other transponders where the "?" tracks is still there. Like I said, it appears to me that they have not complete the job.
Probably because they don't find it urgent to finish it quick, so they're just taking their time.
Some of you guys pointed out there have "some improvements on picture quality" for HD channels?I don't see improvement in picture quality also. The compression artifacts on all HD channels is still there as always. Not improve nor worsen. It still look the same to me.
Maybe you guys can specifically name out the HD channels that you find that it has been improved? Cuz based on the bitrate analyser, it appears no drastic changes to me yet.
So what's next?I'll wait till end of April or May like that, where after they've ceased many of simulcast SD channels, then I shall see how it goes then.
QUOTE(hazim96 @ Feb 28 2021, 02:05 PM)
Hai. Yang terkini, saluran CNBC Asia HD (CH516) ya, akan bermula 1 March 2021, 12.01am.
^heny
Lol, I knew it! I saw CNBC channel in HD is already "on standby" on 11682MHz transponder 🤣🤣🤣🤣

At the time of writing, CNBC HD is the one and only HD channel on 11682MHz. The rest of it, are just "spare" and "test" dummy HD MPEG-4 channels.
Previously, that 11682MHz transponder was used to transmit all SD MPEG-2 channels. Not until recently, it has being repurposed and left vacant, until now.
FEC rate for this Measat 3 satellite 11682MHz transponder is now FEC
3/4.
Astro uses this FEC rate when they plan to accommodate 10 HD channels for that transponder. If the FEC is 5/6, it will be 12 HD channels. That's Astro style.
If you ask me how they can significantly improve the video quality on HD channels, my answer is, reduce the number of HD channels on that transponder, so that each HD channel can have more Mbps bitrate. That is the most straightforward one.
This post has been edited by joshhd: Feb 28 2021, 02:53 PM