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.


155 posts

Master Geek


Topic # 27303 21-Oct-2008 14:39
Send private message

Hi again. Yet another post :)

Since I got my lcd tv I've noticed that during dvd playback, when the camera pans fairly quickly, movement is actually slightly jittery. The jitters seem to be fairly regular. I'm not sure what is causing this. Any ideas? One idea I had is that there some kind of mismatch between the refresh rate of the dvd, the refresh rate my graphics card is outputting (60, though I could try 50 or 59), the refresh rate that works best over hdmi, or the refresh rate that my tv prefers to display. I don't know. Should I try and force my video card to output 24Hz and see if that makes a difference? Just a noob guess, and I don't want to make my tv 'splode :)

Currently my specs/setup are as follows:

AMD Phenom x4 9750
Sapphire Radeon hd4870 (outputting both audio and video via one DVI port with a DVI->hdmi dongle and an hdmi wire attached).
Some kind of SATA DVD-RW drive. I forget specific model (perhaps pioneer?)

Windows Vista Home Premium 32bit.
Windows media player (Haven't tried or even installed power dvd or VLC, I guess this would be my next step).

Create new topic
26617 posts

Uber Geek
+1 received by user: 6107

Moderator
Trusted
Biddle Corp
Lifetime subscriber

  Reply # 172527 21-Oct-2008 15:11
Send private message

You really should be using 50Hz output if you have 50Hz content.




155 posts

Master Geek


  Reply # 172538 21-Oct-2008 15:48
Send private message

Ahh, is DVD video 25Hz in NZ? For some reason I thought it was 24Hz, but I just looked at wikipedia and it suggested that PAL (which is what we use in NZ, right?) is 25 Hz. Thus, as 25 evenly divides into 50, 50Hz would produce smoother DVD playback? Sweet, I'll try that as soon as I get home.

Now, for another question. Text seems to look clearer for me at 60Hz. Is there a way to tell Windows media player (or any other dvd player for that matter) to change the output refresh rate to 50Hz if and only if I have a dvd video maximised?

Similarly, can and should I do something similar with the resolution?

Cheers!



155 posts

Master Geek


  Reply # 173268 24-Oct-2008 08:56
Send private message

Quick update:

I set it to 50Hz and it works fine. Question though: what's an easy way to switch between refresh rates at the click of a button? I'm using catalyst control center, but I hate having to open it up and change the refresh rate. Is it possible to set it to allow me to switch refresh rates using the control center icon on the task bar? Or with a short-cut key? Or better yet, can I somehow tell it to automatically play dvds at 50Hz?

Create new topic

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 »

Microsoft Dynamics 365 Business Central launches
Posted 10-Jul-2018 10:40


Spark completes first milestone in voice platform upgrade
Posted 10-Jul-2018 09:36


Microsoft ices heated developers
Posted 6-Jul-2018 20:16


PB Technologies charged for its extended warranties and warned for bait advertising
Posted 3-Jul-2018 15:45


Almost 20,000 people claim credits from Spark
Posted 29-Jun-2018 10:40


Cove sells NZ's first insurance policy via chatbot
Posted 25-Jun-2018 10:04


N4L helping TAKA Trust bridge the digital divide for Lower Hutt students
Posted 18-Jun-2018 13:08


Winners Announced for 2018 CIO Awards
Posted 18-Jun-2018 13:03


Logitech Rally sets new standard for USB-connected video conference cameras
Posted 18-Jun-2018 09:27


Russell Stanners steps down as Vodafone NZ CEO
Posted 12-Jun-2018 09:13


Intergen recognised as 2018 Microsoft Country Partner of the Year for New Zealand
Posted 12-Jun-2018 08:00


Finalists Announced For Microsoft NZ Partner Awards
Posted 6-Jun-2018 15:12


Vocus Group and Vodafone announce joint venture to accelerate fibre innovation
Posted 5-Jun-2018 10:52


Kogan.com to launch Kogan Mobile in New Zealand
Posted 4-Jun-2018 14:34


Enable doubles fibre broadband speeds for its most popular wholesale service in Christchurch
Posted 2-Jun-2018 20:07



Geekzone Live »

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



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.