Many professional editors and camera crew members never learn the difference between non-drop frame timecode and drop frame timecode. This is surprising, because it's crucial to know the difference if you're creating videos for broadcast TV or the web. This lesson explains one of the great mysteries of NTSC timecode.
- [Voiceover] When it came to actually broadcasting NTSC…video, there was a problem with the signal transmission.…Without going into a long explanation, the solution was…to slow the video down to 29.97 frames per second at…the moment of broadcast but only at the moment of broadcast,…which confuses a lot of people.…When you record 29.97 frames per second footage on a camera,…for example, you're actually recording 30 frames per second…but with a special kind of timecode reading…that automatically drops exactly the amount of frames…to give you the duration that will apply…when the footage is broadcast.…
If your footage is intended for the web, don't use…dropframe timecode as the duration won't actually match.…The ten minutes of footage recorded with drop frame…29.97 frames per second time code will not last ten minutes.…It will be slightly shorter in real playback duration.…However, if you were to broadcast that footage, it would…be slowed down during broadcast so that the 29.97 frames…per second drop frame timecode gave the correct duration.…
Get ready to remove the mystery behind terms you've encountered. If you work in a creative profession, this can enhance your command of the tools you use. Learn what a pixel really is, what color channels are, and what audio frequency is. Discover how color channels, bit depth, and video frame rates work. Find out the difference between codecs and file formats, and how compression is involved. By the end of this course, you'll know how to answer common client questions—like, whether a logo should be supplied in vector or bitmap form, and more.
Note: Motion graphics in this course were provided by Chelsea Parrish: chelseaparrish.com.
- What is a pixel?
- Aspect ratios
- Bit depth
- Alpha and transparency
- Light and color channels
- Color modes: RGB, YUV, CMYK
- Camera depth of field
- Chroma Key and Luma Key
- Blend modes
- Color wheels, vectorscopes, and waveforms
- Video compression and codecs
- Frame rates and timecode
- File formats
- Audio amplitude
- Capturing audio tone as frequency
- Audio timing using the phase
Skill Level Beginner
Learning Video Production and Editingwith Rob Garrott19m 25s Beginner
Video Foundations: Cameras and Shootingwith Anthony Q. Artis2h 58m Appropriate for all
Introduction to Video Dialogue Editingwith Ashley Kennedy3h 14m Appropriate for all
1. How Do Computers Think?
2. How Cameras and Computers Think about Color
3. The Language of Color
4. The Shape of Your Picture and the Speed of Your Video
5. Storing Everything (Codecs)
6. Color Wheels, Vectorscopes, and Waveforms
Understanding waveforms2m 39s
7. Making Changes
8. Audio Made Simple
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