Sweetwater offers more ways to pay than any other music retailer. Learn more »

Cart (800) 222-4700 Español (800) 222-4701


May is Mic Month at Sweetwater!

Expert Center Sweetcare

«Back to Glossary Menu

Search:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9

3/2 Pull Down
Another of those dreaded sync terms. One of two types of pull down pertinent to synchronization, and guess what The two get confused quite often. We've already discussed what Pull Down is (see WFTD Pull Down). 3/2 pull down is a specific type of pull down employed when film is transferred to video tape. The problem is that film is generally shot at 24 FPS (Frames Per Second) and video in the United States is generally around 30 FPS. It is desirable to have each film frame correspond to a video frame, but because they operate at different frame rates this is impossible. It is also not acceptable to speed up the film to video's 30 FPS during transfer to video (unless it's one of those old Charlie Chaplain movies). The best compromise has been to employ 3/2 pull down during the telecine transfer, which reconciles the 24 FPS of film with the 30 FPS of NTSC video by scanning in the second field of video twice on every other frame of film. This effectively creates an extra 25% of visual filler to occupy the six extra frames of video that occur each second. Amazingly this process is pretty much undetectable to those who aren't looking for it and is the way film has been transferred to video for many years now.

1-bit

1/4 Wave

1/8 Space

12-bar Blues

13-pin

1957/2008 Pickups

1x12

1x15

2-bus

2-bus Compressor

2-pop

2-way System

 24/192

24/96

24P

2:1 Rule of Ambience

2x12

3-point Edit

3-way Pickup Selector

3-way System

3-way Toggle Switch

3/2 Pull Down

3:1 Rule of Microphone Placement

4-point Edit

 4-way System

4x10

4x12

5-way System

5.1

500 Series

6L6

70-Volt System

802.11

9-pin

     
Home | Gear Reviews | Videos | Buying Guides | Glossary | Tech Tips | Show Reports | Publications | Featured Articles

Our Customers Say...

“My Sweetwater Sales Engineer wasn't pushy like most "typical" sales people. His suggestions have been wonderful. I'm going to use you guys for life!”
Robert McNamara, Kenilworth, NJ

Sweetwater Sound Inc.
5501 U.S. Hwy 30 W
Fort Wayne, IN 46818
Get Directions »

Toll Free (800) 222–4700
Español (800) 222–4701
Local (260) 432–8176
Fax (260) 432–1758
E-mail us

Phone & Retail Store Hours:
9–9 Monday–Thursday
9–8 Friday
9–7 Saturday
(All hours listed are
Eastern Standard Time.)

© 2012 Sweetwater Sound Inc. All rights reserved. Please read our Terms of Use and Privacy Policy. Links | Press Releases