Quantcast Are luminance and chrominance recorded separately on Video8 tapes? - digitalFAQ Forum
Go Back    Forum > Digital Video > Blank Media

Reply
 
LinkBack Thread Tools
  #1  
10-07-2021, 12:09 PM
RandomMixTape RandomMixTape is offline
Free Member
 
Join Date: Oct 2021
Posts: 2
Thanked 0 Times in 0 Posts
Hello

Is the video recorded on Video8 tapes a composite signal or separated into luminance and chrominance?

If separated, is chrominance recorded using colour under modulation similar to VHS?

Many thanks
Reply With Quote
Someday, 12:01 PM
admin's Avatar
Ads / Sponsors
 
Join Date: ∞
Posts: 42
Thanks: ∞
Thanked 42 Times in 42 Posts
  #2  
10-07-2021, 12:41 PM
hodgey hodgey is offline
Free Member
 
Join Date: Dec 2017
Location: Norway
Posts: 1,211
Thanked 312 Times in 266 Posts
Yup, the base principle is similar to VHS (and U-Matic, Betamax, Video2000 and various more obsure ones), termed "color under".

The luma/brightness part of the signal is frequency modulated (i.e brighter part higher frequency, rather than higher voltage) while the color is down-converted to a lower frequency. (Though as with VHS there is some slight overlapping, I think it's a bit less prominent due to other differences though.)

There are some smaller differences in the exact filtering though. 8mm had some improvements over the older formats such as slightly higher bandwidth/resolution than standard VHS/Beta and had FM audio (mono or stereo) and "tracking" signals in the same signal.

In contrast you have analog formats recording the full composite signal fm-modulated such as Laserdisc (CED and VHD disks are a bit more complicated), Type C and various other broadcast open-reel tape format, and component (storing each of luma and two color components separately) most notably used in (analog) Betacam and MII.
Reply With Quote
  #3  
10-07-2021, 01:53 PM
RandomMixTape RandomMixTape is offline
Free Member
 
Join Date: Oct 2021
Posts: 2
Thanked 0 Times in 0 Posts
Thanks hodgey; really helpful!
Reply With Quote
Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
How were commercial tapes mass-recorded? premiumcapture General Discussion 9 08-17-2020 11:46 AM
Weird flashing on tapes recorded off premium cable channel? justin81 Capture, Record, Transfer 1 08-14-2020 10:36 PM
No video/audio from Video8/Hi8 tapes, but Digital8 tapes work? mark_l Capture, Record, Transfer 0 12-03-2019 11:06 PM
Pre-recorded D-VHS tapes for sale [SOLD] latreche34 Marketplace 1 02-23-2019 01:01 AM
Betamax VCR problems playing pre-recorded tapes? digicube Capture, Record, Transfer 3 03-11-2017 08:32 AM

Thread Tools



 
All times are GMT -5. The time now is 11:20 PM