• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Why is TV 29.97 frames per second?

qubit

qubit

Overclocked quantum bit
Joined
Dec 6, 2007
Messages
17,865 (2.98/day)
Location
Quantum Well UK
System Specs
System Name Quantumville™
Processor Intel Core i7-2700K @ 4GHz
Motherboard Asus P8Z68-V PRO/GEN3
Cooling Noctua NH-D14
Memory 16GB (2 x 8GB Corsair Vengeance Black DDR3 PC3-12800 C9 1600MHz)
Video Card(s) MSI RTX 2080 SUPER Gaming X Trio
Storage Samsung 850 Pro 256GB | WD Black 4TB | WD Blue 6TB
Display(s) ASUS ROG Strix XG27UQR (4K, 144Hz, G-SYNC compatible) | Asus MG28UQ (4K, 60Hz, FreeSync compatible)
Case Cooler Master HAF 922
Audio Device(s) Creative Sound Blaster X-Fi Fatal1ty PCIe
Power Supply Corsair AX1600i
Mouse Microsoft Intellimouse Pro - Black Shadow
Keyboard Yes
Software Windows 10 Pro 64-bit
Explained the way only Matt Parker can. Of course the answer is suitably obscure and complex. :D

 
dorsetknob

dorsetknob

"YOUR RMA REQUEST IS CON-REFUSED"
Joined
Mar 17, 2005
Messages
9,105 (1.30/day)
Location
Dorset where else eh? >>> Thats ENGLAND<<<
Newsflash its not 29.97 Frames a Second
only that for NTSC regions
Pal and Secam are 25 Frames a Second in their Respective Regions

"Schooled " :) @qubit
 
Last edited:
NdMk2o1o

NdMk2o1o

Joined
Apr 21, 2010
Messages
5,731 (1.12/day)
Location
West Midlands. UK.
System Specs
System Name Ryzen Reynolds
Processor Ryzen 1600 - 4.0Ghz 1.415v - SMT disabled
Motherboard mATX Asrock AB350m AM4
Cooling Raijintek Leto Pro
Memory Vulcan T-Force 16GB DDR4 3000 16.18.18 @3200Mhz 14.17.17
Video Card(s) Sapphire Nitro+ 4GB RX 580 - 1450/2000 BIOS mod 8-)
Storage Seagate B'cuda 1TB/Sandisk 128GB SSD
Display(s) Acer ED242QR 75hz Freesync
Case Corsair Carbide Series SPEC-01
Audio Device(s) Onboard
Power Supply Corsair VS 550w
Mouse Zalman ZM-M401R
Keyboard Razor Lycosa
Software Windows 10 x64
Benchmark Scores https://www.3dmark.com/spy/6220813
dorsetknob said:
Newsflash its not 29.97 Frames a Second
only that for NTSC regions
Pal and Secam are 25 Frames a Second in their Respective Regions

"Schooled " :)
Click to expand...

He did say in north America or did you pass out during that point at 3 seconds in? :slap::roll:
 
dorsetknob

dorsetknob

"YOUR RMA REQUEST IS CON-REFUSED"
Joined
Mar 17, 2005
Messages
9,105 (1.30/day)
Location
Dorset where else eh? >>> Thats ENGLAND<<<
qubit is from UK and no i did not watch vid cause i am in Uk and i know our pal Tv is 25fps
So From my UK point of View i did not need to watch it to Realise its wrong from a UK PAL perspective "ok PAL:)" you secam what i did there :)
 
Aquinus

Aquinus

Resident Wat-man
Joined
Jan 28, 2012
Messages
13,147 (2.93/day)
Location
Concord, NH, USA
System Specs
System Name Apollo
Processor Intel Core i9 9880H
Motherboard Some proprietary Apple thing.
Memory 64GB DDR4-2667
Video Card(s) AMD Radeon Pro 5600M, 8GB HBM2
Storage 1TB Apple NVMe, 4TB External
Display(s) Laptop @ 3072x1920 + 2x LG 5k Ultrafine TB3 displays
Case MacBook Pro (16", 2019)
Audio Device(s) AirPods Pro, Sennheiser HD 380s w/ FIIO Alpen 2, or Logitech 2.1 Speakers
Power Supply 96w Power Adapter
Mouse Logitech MX Master 3
Keyboard Logitech G915, GL Clicky
Software MacOS 12.1
"NTSC stands for Not The Smartest Choice." Isn't that the truth. :laugh:

Regardless if you use PAL or not, it's actually a pretty good video that describes exactly where 29.97FPS came from for NTSC.
 
FordGT90Concept

FordGT90Concept

"I go fast!1!11!1!"
Joined
Oct 13, 2008
Messages
26,259 (4.61/day)
Location
IA, USA
System Specs
System Name BY-2021
Processor AMD Ryzen 7 5800X (65w eco profile)
Motherboard MSI B550 Gaming Plus
Cooling Scythe Mugen (rev 5)
Memory 2 x Kingston HyperX DDR4-3200 32 GiB
Video Card(s) AMD Radeon RX 7900 XT
Storage Samsung 980 Pro, Seagate Exos X20 TB 7200 RPM
Display(s) Nixeus NX-EDG274K (3840x2160@144 DP) + Samsung SyncMaster 906BW (1440x900@60 HDMI-DVI)
Case Coolermaster HAF 932 w/ USB 3.0 5.25" bay + USB 3.2 (A+C) 3.5" bay
Audio Device(s) Realtek ALC1150, Micca OriGen+
Power Supply Enermax Platimax 850w
Mouse Nixeus REVEL-X
Keyboard Tesoro Excalibur
Software Windows 10 Home 64-bit
Benchmark Scores Faster than the tortoise; slower than the hare.
NTSC existed before PAL. As he said in the video, PAL was developed with color in mind where NTSC was not. Advantage of coming later.

The end of the video, he goes into theoreticals about how to get 30 FPS on NTSC instead of 29.97. This is pointless because the same NTSC signal worked on black & white AND color televisions. To change anything relating to black & white in the name of color would have obsoleted black & white equipment. It makes far more sense to design color to coexist with black & white. PAL and NTSC have no reason to coexist.
 
Last edited:
qubit

qubit

Overclocked quantum bit
Joined
Dec 6, 2007
Messages
17,865 (2.98/day)
Location
Quantum Well UK
System Specs
System Name Quantumville™
Processor Intel Core i7-2700K @ 4GHz
Motherboard Asus P8Z68-V PRO/GEN3
Cooling Noctua NH-D14
Memory 16GB (2 x 8GB Corsair Vengeance Black DDR3 PC3-12800 C9 1600MHz)
Video Card(s) MSI RTX 2080 SUPER Gaming X Trio
Storage Samsung 850 Pro 256GB | WD Black 4TB | WD Blue 6TB
Display(s) ASUS ROG Strix XG27UQR (4K, 144Hz, G-SYNC compatible) | Asus MG28UQ (4K, 60Hz, FreeSync compatible)
Case Cooler Master HAF 922
Audio Device(s) Creative Sound Blaster X-Fi Fatal1ty PCIe
Power Supply Corsair AX1600i
Mouse Microsoft Intellimouse Pro - Black Shadow
Keyboard Yes
Software Windows 10 Pro 64-bit
Oh dorset! You shouldn't assume that something like this will necessarily be UK centric just because I come from the UK. :) As @NdMk2o1o pointed out, Matt does explain this at the start of the video.

I'm about to post another video thread about the effects of running Sonic the Hedgehog at 50/60Hz mains frequency and the facepalmy consequence of it.

EDIT here it is: https://www.techpowerup.com/forums/threads/why-sonic-plays-faster-at-60hz-than-50hz.226454/

Aquinus said:
"NTSC stands for Not The Smartest Choice." Isn't that the truth. :laugh:

Regardless if you use PAL or not, it's actually a pretty good video that describes exactly where 29.97FPS came from for NTSC.
Click to expand...
I know, it's deliciously awkward and fiddly, isn't it? :D
 
Last edited:
dorsetknob

dorsetknob

"YOUR RMA REQUEST IS CON-REFUSED"
Joined
Mar 17, 2005
Messages
9,105 (1.30/day)
Location
Dorset where else eh? >>> Thats ENGLAND<<<
qubit said:
Oh dorset! You shouldn't assume that something like this will necessarily be UK centric
Click to expand...
Dear oh Dear i did not assume the post would be uk centric in fact i said
dorsetknob said:
Newsflash its not 29.97 Frames a Second
only that for NTSC regions
Pal and Secam are 25 Frames a Second in their Respective Regions
Click to expand...
Think that covers the Globe with the Exception of the Poles

Did i mention Secam that's not UK Centric ( but here on the South Coast we used to be able to receive French Secam broadcasts only in B&W tho }
 
qubit

qubit

Overclocked quantum bit
Joined
Dec 6, 2007
Messages
17,865 (2.98/day)
Location
Quantum Well UK
System Specs
System Name Quantumville™
Processor Intel Core i7-2700K @ 4GHz
Motherboard Asus P8Z68-V PRO/GEN3
Cooling Noctua NH-D14
Memory 16GB (2 x 8GB Corsair Vengeance Black DDR3 PC3-12800 C9 1600MHz)
Video Card(s) MSI RTX 2080 SUPER Gaming X Trio
Storage Samsung 850 Pro 256GB | WD Black 4TB | WD Blue 6TB
Display(s) ASUS ROG Strix XG27UQR (4K, 144Hz, G-SYNC compatible) | Asus MG28UQ (4K, 60Hz, FreeSync compatible)
Case Cooler Master HAF 922
Audio Device(s) Creative Sound Blaster X-Fi Fatal1ty PCIe
Power Supply Corsair AX1600i
Mouse Microsoft Intellimouse Pro - Black Shadow
Keyboard Yes
Software Windows 10 Pro 64-bit
Maybe I got confuddled then and ndmk's post didn't help. I think it's that first line that's a bit ambiguous maybe? No worries, I get what you mean now. :)
 
You must log in or register to reply here.
Top