CAV LaserDiscs support frame‑by‑frame and slow‑motion
Question asked:
“CAV LaserDiscs support frame-by-frame navigation, freeze-frame, and slow-motion playback, while CLV LaserDiscs do not support these features as effectively.”
Summary
CAV LaserDiscs provide true frame‑by‑frame navigation, freeze‑frame, and variable‑speed (slow‑motion) playback because each frame corresponds to a physical disc rotation. CLV LaserDiscs can only approximate these functions, typically requiring a digital frame store and delivering inferior performance.
Sources 60 searched
- Optical Disc Technology
The number of revolutions is automatically increased to 2700 rpm when a Laserdisc single is inserted, and to 1800 rpm in the case of a Laserdisc LP. Apart from the conventional CLV (Linear Play) discs as described above, there are also discs that have a Constant Angular Velocity (CAV discs), ...
- LaserDisc - Wikipedia
Constant linear velocity (CLV), ... features of CAV discs, except when used with high-end LaserDisc players equipped with a digital frame store, which could simulate functions like freeze-frame and variable-speed playback. CLV discs gradually slowed their rotational speed ...
- Constant angular velocity - Wikipedia
CAV was used in the LaserDisc format for interactive titles; it was also used with special editions of certain films. CAV allowed for perfect still frames, as well as random access to any given frame on a disc. Playing time, however, was 30 minutes on each side (these discs are also known as "standard play"), as opposed to 60 minutes on each side for CLV...
- Constant linear velocity - Wikipedia
LaserDiscs, the first consumer optical discs, used constant linear velocity to double playback time (CLV / "extended play" discs can hold 1 hour per side; CAV / "standard play" discs can only hold 30 minutes).
- Laserdisc - Dead Media Archive
(2) CAV (Constant Angular Velocity) ... The frames of CAV discs correspond to actual film frames, and a faster rotational speed allowed owners to play around with unique features like pause, frame-by-frame advance, freeze frame, and variable slow motion....
- Notes on the Troubleshooting and Repair of Optical Disc Players and Optical Data Storage Drives
Introduction Scope of this document SAFETY For more information on CD and optical disc technology · Technology Specific Principles of Operation LaserDisc (LD) Players So what about the RCA "CED" video player? MiniDisc (MD) recorders/players Digital Versatile (or Video) Disc (DVD) Are blue ...
- CAV vs CLV quality (laserdisc) | AVS Forum
Manufacturers would then do the ... mentioned the CAV side was side 2) Players with frame stores can give freeze frame with CLV discs but this is usually inferior to a CAV still frame....
- DVDizzy.com • View topic - What is laserdisc CAV?
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- CAV/CLV/CAA
The problem, restated, is: If the time required for one revolution at some value of CAA equals the time required for one revolution at some value of CLV, then what is the maximum divergence of CAA speed and CLV speed during the course of those two separate revolutions? (Think of it as a same-length circle being traversed on two different machines.) ... Post by o***@netscape.net I think a laserdisc has concentric circles, not a continuous spiral, I beleive you are incorrect. CAV disks have concentric circles, that's what allows them to freeze frame, the laser simply pauses it's radial motion and lets the disk spin underneath it.