Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


View this topic in a long page with up to 500 replies per page Create new topic
1 | 2 
2625 posts

Uber Geek
+1 received by user: 1137

Trusted
Lifetime subscriber

  Reply # 98827 7-Dec-2007 22:25
Send private message

After watching the street all via 3 different dreamboxes, (one tuned to TCL, one to Freeview and one to the Sky MUX) the picture for the street seems to be off centre as it is broadcast from TVNZ. So they all were off-centre. And all consistantly off-centre in the same place.

I tried to record all three streams but because the EPG data was the same for all channels and I was trying to record into the same directory the recording just didn't happen as the files are recorded by their EPG name. I did remember after "the street" had finished about taking screenshots which I have done, for comparison between the quality of the three different streams.

TCL seems to be about 2 seconds behind Freeview and Sky which are only a few nanoseconds apart (freeview being slightly ahead), which isn't a huge suprise really as it is taking the freeview stream and re-encoding it.

Below are some screenshots showing the difference in picture quality / contrast between the three different feeds... I tried to get the same picture for all, but that is really hard when you are tabbing between browser windows and clicking on a button ;)..

One thing I did notice is that th TCL feed is a "smidge" stretched out / wider than the Sky/Freeview feed... I have a screenshot of the placemakers icon showing you what I mean below. I think I have figured out why that is, the TCL feed is 704x576 for TV1 & 2, whereas the Sky/Freeview feed is 720x576.  TV3 on TCL is 720x576

Not sure if sky transmit them this way but TCL re-encoded the channels into all sorts of other weird and wonderful non-widescreen res's such as 544x576 or 480x576 or even 352x576 on Nickelodeon (ewww!) but on the upside they did have Ren & Stimpy on, space madness, classic!....

Telstraclear "Worst Week of my life"



Freeview TV1 Feed:



Sky TV1 Feed:



You can really tell that Sky compress their image a lot :), plus the colours are slightly washed out on TCL, however they do look a whole lot worse on the ADB STB than they do on Dreambox. That's next weeks job to setup a media pc to do a screen capture between the two.







29 posts

Geek


  Reply # 99709 12-Dec-2007 23:19
Send private message

Just watched 'Real Life' on TV1,  on Widescreen (Full) and there was a 1 inch black bar on the right hand side of the screen......


Even if the screen does completly display, as was the case when swithching to ad's, it is still noticeable that everything is off to the left.

 
 
 
 


741 posts

Ultimate Geek

Trusted

  Reply # 99714 12-Dec-2007 23:48
Send private message

Just got TCL cable tv in yesterday and the technician mentioned free to air tv so 1-4 really still haven't been set up for the different aspect ratios and is a problem that telstra are currently looking at fixing, so they know some are wrong, just haven't fixed it yet.

Not sure if this helps any but thought it may be nice to mention








2625 posts

Uber Geek
+1 received by user: 1137

Trusted
Lifetime subscriber

  Reply # 99733 13-Dec-2007 09:44
Send private message

pebbles:

Just got TCL cable tv in yesterday and the technician mentioned free to air tv so 1-4 really still haven't been set up for the different aspect ratios and is a problem that telstra are currently looking at fixing, so they know some are wrong, just haven't fixed it yet.

Telstra are currently replacing their old analogue decoders (which from memory when I saw them were just glorified Sky Set Top Boxes, connected via Composite to a Cable Re-encoder).

From my deduction it seems that TV3 has already been switched over to the digital system which doesn't seem to decode the image at all, just decrypts the raw TS stream from the satellite, and re-encrypts it down the Cable.  Not changing any of the image quality on the way through as it all seems to stay digital.  Tv1 1 & 2 still seem to be on the old system, as to the bulk of the subscriber Sky Channels.  Only seems to be TV3, the new channels (Vibe, DT&L, C&I etc) are on the new system... but this is all "supposed" to be swapped over on 15 December as per: http://www.telstraclear.co.nz/go/whatsnewtv but we will see...

This can't be said for the MPEG decoder quality in the TCL Supplied Set Top Boxes, which seem to do a very poor job of decoding the stream off the cable and displaying it on screen.

I have my PC Capture card working today, so will take "comparison" screenshots tonight, between the ADB and DM.






1 | 2 
View this topic in a long page with up to 500 replies per page Create new topic


Donate via Givealittle


Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Orcon announces new always-on internet service for Small Business
Posted 18-Apr-2019 10:19


Spark Sport prices for Rugby World Cup 2019 announced
Posted 16-Apr-2019 07:58


2degrees launches new unlimited mobile plan
Posted 15-Apr-2019 09:35


Redgate brings together major industry speakers for SQL in the City Summits
Posted 13-Apr-2019 12:35


Exported honey authenticated on Blockchain
Posted 10-Apr-2019 21:19


HPE and Nutanix partner to deliver hybrid cloud as a service
Posted 10-Apr-2019 21:12


Southern Cross and ASN sign contract for Southern Cross NEXT
Posted 10-Apr-2019 21:09


Data security top New Zealand consumer priority when choosing a bank
Posted 10-Apr-2019 21:07


Samsung announces first 8K screens to hit New Zealand
Posted 10-Apr-2019 21:03


New cyber-protection and insurance product for businesses launched in APAC
Posted 10-Apr-2019 20:59


Kiwis ensure streaming is never interrupted by opting for uncapped broadband plans
Posted 7-Apr-2019 09:05


DHL Express introduces new MyDHL+ online portal to make shipping easier
Posted 7-Apr-2019 08:51


RackWare hybrid cloud platform removes barriers to enterprise cloud adoption
Posted 7-Apr-2019 08:50


Top partner named at MYOB High Achievers Awards
Posted 7-Apr-2019 08:48


Great ideas start in Gisborne with hackathon event back for another round
Posted 7-Apr-2019 08:42



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.