You're right etech, I don't need smart proxy with hd-mpeg2.
Re: aspect ratio - what I've discovered is that if my project properties match the High Def camcorder footage taken in 16.9, then the DV footage taken with the mini DV camcorder on auto (4.3) will be adjusted to match it by VS11.5plus when I insert the clips into the timeline. So that seems the best way to work in the future.
I'm working in 1920 x 1080, but it doesn't seem to make any difference whether I enable non-square pixeling or not. Would you advise leaving it off?
Computer spec for high def editing
Moderator: Ken Berry
-
Sue Whitham
- Posts: 96
- Joined: Fri May 18, 2007 1:33 pm
- System_Drive: C
- 32bit or 64bit: 32 Bit
- motherboard: Chipset Intel Q35 Q33 P35 G33
- processor: HP PavilionM9065 quad core Q6600
- ram: 3GB
- Video Card: Nvidia GeForce 8500GT
- sound_card: Realtek High Definition
- Hard_Drive_Capacity: 820GB
- Monitor/Display Make & Model: HP w2408h
- Corel programs: VS pro x4 ult. VS pro x9
Sue,
Yes, If non-square pixel rendering is on it is probably squishing the video.
1920x1080 uses Square Pixels.
1280x720 uses Square Pixels.
Here is why (the formula):
A 16:9 Screen is ( 16 / 9 ) = 1.777777
A 1920x1080 Screen is ( 1920 / 1080 ) = 1.777777
A 1280x720 Screen is ( 1280 / 720 ) = 1.777777
If you record in the True HDV mode you videos should come out 1440x1080 which is a standard HDV Spec. That is what most HDV cams record at ( Canon HV20, Sony HC1/HC3/HC5/HC7 ) AVCHD Camcorders.
So when or if you do record in the HDV mode and your video properties are 1440x1080 then turn ON "Non-Square Pixel Rendering"
Your videos are called HD, slight difference between HD & HDV.
A standard HDV video is 1440x1080 frame does NOT use square pixels, they are 1.3333 PAR (Pixel Aspect Ratio) Non-Square Pixels.
( 1440 / 1080 ) = 1.3333
When a frame size does not use square pixels then the pixels are adjusted and rendered to fit the "Aspect Ratio".
Notice that 16:9 aspect ratio is 1.777777
1440 x 1.3333 = 1920 which brings them up to the correct aspect ratio when rendered & played back. 1920/1080=1.777777 (16:9 Aspect Ratio)
So for you 1920 source is Non-Square Off and 1440 Non-Square ON
To mix 1440 with 1920 in ONE file first convert the 1440 to 1920 with Non-Square = ON.
Then after the 1440 is converted to 1920 the new video will be Non-Square = OFF and you can then mix them with the other 1920 videos to combine into one file.
When making a High Definition disk you can use both 1920 & 1440 but they have to be burnt as separate files, you cannot combine them. The same as putting 4:3 or 16:9 video on the same dvd as separate files or 720 and 704 videos on the same dvd, it works as long as they are separate.
Yes, If non-square pixel rendering is on it is probably squishing the video.
1920x1080 uses Square Pixels.
1280x720 uses Square Pixels.
Here is why (the formula):
A 16:9 Screen is ( 16 / 9 ) = 1.777777
A 1920x1080 Screen is ( 1920 / 1080 ) = 1.777777
A 1280x720 Screen is ( 1280 / 720 ) = 1.777777
If you record in the True HDV mode you videos should come out 1440x1080 which is a standard HDV Spec. That is what most HDV cams record at ( Canon HV20, Sony HC1/HC3/HC5/HC7 ) AVCHD Camcorders.
So when or if you do record in the HDV mode and your video properties are 1440x1080 then turn ON "Non-Square Pixel Rendering"
Your videos are called HD, slight difference between HD & HDV.
A standard HDV video is 1440x1080 frame does NOT use square pixels, they are 1.3333 PAR (Pixel Aspect Ratio) Non-Square Pixels.
( 1440 / 1080 ) = 1.3333
When a frame size does not use square pixels then the pixels are adjusted and rendered to fit the "Aspect Ratio".
Notice that 16:9 aspect ratio is 1.777777
1440 x 1.3333 = 1920 which brings them up to the correct aspect ratio when rendered & played back. 1920/1080=1.777777 (16:9 Aspect Ratio)
So for you 1920 source is Non-Square Off and 1440 Non-Square ON
To mix 1440 with 1920 in ONE file first convert the 1440 to 1920 with Non-Square = ON.
Then after the 1440 is converted to 1920 the new video will be Non-Square = OFF and you can then mix them with the other 1920 videos to combine into one file.
When making a High Definition disk you can use both 1920 & 1440 but they have to be burnt as separate files, you cannot combine them. The same as putting 4:3 or 16:9 video on the same dvd as separate files or 720 and 704 videos on the same dvd, it works as long as they are separate.
-
Sue Whitham
- Posts: 96
- Joined: Fri May 18, 2007 1:33 pm
- System_Drive: C
- 32bit or 64bit: 32 Bit
- motherboard: Chipset Intel Q35 Q33 P35 G33
- processor: HP PavilionM9065 quad core Q6600
- ram: 3GB
- Video Card: Nvidia GeForce 8500GT
- sound_card: Realtek High Definition
- Hard_Drive_Capacity: 820GB
- Monitor/Display Make & Model: HP w2408h
- Corel programs: VS pro x4 ult. VS pro x9
My reply from yesterday doesn't seem to be here - perhaps I didn't press "submit".
Anyway, thanks for info, etech - all a bit technical, but I'll study it so I can understand it.
The JVC HD7 camcorder records in HD (High Def) 1449 x 1080 16.9 and FHD (Full High Def) 1920 x 1080 16.9. The latter FHD setting is the factory preset, and looks great on a 1920 x 1080 TV screen.
It's all a bit academic at the moment, since I don't yet have a high definition disc burner or DVD player, so I'll have to downgrade to ordinary DVD's for final output, but I just wanted to get into the HD habit of working in readiness for the HD future.
Sue W.
Anyway, thanks for info, etech - all a bit technical, but I'll study it so I can understand it.
The JVC HD7 camcorder records in HD (High Def) 1449 x 1080 16.9 and FHD (Full High Def) 1920 x 1080 16.9. The latter FHD setting is the factory preset, and looks great on a 1920 x 1080 TV screen.
It's all a bit academic at the moment, since I don't yet have a high definition disc burner or DVD player, so I'll have to downgrade to ordinary DVD's for final output, but I just wanted to get into the HD habit of working in readiness for the HD future.
Sue W.
Sue,
Prices will drop.
I would wait, the future for Blu-Ray players seems to be pointing to some with internal harddisks, usb ports & network connections. These devices will be able to playback all your HD video files at HD resolutions on your HDTV without having to buy a Blu-Ray disk burner..
They probably came up with these features and ideas as the Sony PS3 game console is able to do all this, including avc/h264, hd-divx and hd-wmv.
Many people are using the Sony PS3 as a multi-media device, not just a gaming console.
Blu-Ray burners will take sometime to drop in price.
You can burn High Definition to a standard dvd. This is called an AVCHD disk and uses avc/h264 video. In VS11+ to play with it you would goto "Share -> Create Disk -> AVCHD. The AVCHD module will convert your hd-mpeg2 videos into the avc/h264 video format (a new standard). At present you would have to burn a avchd disk because that's the method the burning module is using.
Here's some more links to PAR and Aspect Ratios: It is confusing
http://en.wikipedia.org/wiki/Aspect_ratio
http://en.wikipedia.org/wiki/Pixel_aspect_ratio
Prices will drop.
I would wait, the future for Blu-Ray players seems to be pointing to some with internal harddisks, usb ports & network connections. These devices will be able to playback all your HD video files at HD resolutions on your HDTV without having to buy a Blu-Ray disk burner..
They probably came up with these features and ideas as the Sony PS3 game console is able to do all this, including avc/h264, hd-divx and hd-wmv.
Many people are using the Sony PS3 as a multi-media device, not just a gaming console.
Blu-Ray burners will take sometime to drop in price.
You can burn High Definition to a standard dvd. This is called an AVCHD disk and uses avc/h264 video. In VS11+ to play with it you would goto "Share -> Create Disk -> AVCHD. The AVCHD module will convert your hd-mpeg2 videos into the avc/h264 video format (a new standard). At present you would have to burn a avchd disk because that's the method the burning module is using.
Here's some more links to PAR and Aspect Ratios: It is confusing
http://en.wikipedia.org/wiki/Aspect_ratio
http://en.wikipedia.org/wiki/Pixel_aspect_ratio