3:2 Pulldown



3_2_pulldown_education_page.gif

Movies are filmed at 24 frames per second. TV is 60 Hz, in other words it shows a new image every 60th of a second. In order for 24fps content to be shown on 60 Hz displays, a process known as 3:2 pulldown is performed.

In this process, the first film frame is shown twice, the second film frame three times, the third film frame twice and so on. In a film where the frames are labeled ABCD, the corresponding TV "version" after 3:2 pulldown is: AABBBCCDDD.

Why is it 2323 when it's called 3:2? After it was initially developed researchers found it was less noticeable as 2:3 instead of 3:2.

The trick is progressive scan televisions, which is all current HDTV models. In the process of making a 1080i image into a 1080p image can cause artifacts when the original source is based on film. Think of watching a movie on Sunday night, or even most scripted TV dramas and comedy shows, these are often shot on film.

Modern TVs and Blu-ray players do a pretty good job deinterlacing the image, pickup up the 3:2 sequence and correctly deinterlacing it.


Newest

May 16
Sonus faber Announces Their Sonetto Line of More Affordable Speakers Iconic Italian speaker manufacturer, Sonus faber, has announced that they will have a new line of audiophile and home theater...
Sonus faber Announces Their Sonetto Line of More Affordable Speakers

May 16
Bowers & Wilkins PX Wireless Over-the-Ear Headphones Reviewed Jerry Del Colliano reviews the PX headphones from Bowers & Wilkins. These wireless, over-the-ear headphones are the first B&W model to include active noise cancellation.
Bowers & Wilkins PX Wireless Over-the-Ear Headphones Reviewed

May 15
HomeTheaterReview.com Announces Major Editorial Additions and Changes HomeTheaterReview.com, the leader in specialty audio/video content on the Internet, is making major additions and a few changes to its...
HomeTheaterReview.com Announces Major Editorial Additions and Changes

May 14
PS Audio Launches Full Line of AC Power Regenerators Clean AC power is one of the most underrated elements of a high performance audio system especially more advanced setups....
PS Audio Launches Full Line of AC Power Regenerators

May 14
MQA Adds More New Partners at Munich, Expands Relationships With Others Like LG MQA is trying to make the world of audio streaming a better-sounding place. At the recent Munich audiophile show, they...
MQA Adds More New Partners at Munich, Expands Relationships With Others Like LG