How can I preserve frame rate while importing video from my camcorder to my computer?
10 replies, posted
I know these types of questions aren't asked very often but I hope someone can help me with this. I have a JVC GZ-HD7 which records fine but when I play/edit the footage on my computer, they're at 25 fps (used Sony Vegas and Premiere Pro, both say footage is 25 fps and does look a bit choppy like 25 fps). I'm sure the frame rate is supposed to be much higher than that. When I play the footage from the camcorder itself (on the LCD) I can clearly tell it's playing at 50+ fps. (besides the fact that it would be ridiculous if a camcorder that costs $2000 could only record at 25 fps) How can I import these files without my computer recognizing them at 25 fps? I have tried renaming the extensions to .mpg and .m2ts (from the original .TOD) with no improvement. Thanks a lot.
Set the movie settings to a higher framerate. The previews will only show how it will look when the finished product is rendered.
My movie setting is at 29.970 fps but that doesn't matter. The clip properties says the footage is 25 fps. I verified this when I slowed down the video 2x and was very choppy (as opposed to slowing down a video at 60fps which would still play smooth at 30 fps).
Perhaps that is the maximum output fps.
I don't think so, because the camcorder and the computer both are reading the same video file. The computer only plays it at a lower frame rate. That I do not understand why.
Import using firewire instead of USB.
Either your computer is too slow to read it fast enough, or the file is quite literally, 25 fps. Does the video program your playing it with display the framerate it was recorded at?
[QUOTE=Wakka;21996604]Import using firewire instead of USB.[/QUOTE]
This camcorder does not have a firewire port. Shouldn't matter either, since I'm not importing DV footage, it's simply a video file.
Correction: actually there is a firewire port. Just tried it now and it does not work.
[QUOTE=Demache;21996615]Either your computer is too slow to read it fast enough, or the file is quite literally, 25 fps. Does the video program your playing it with display the framerate it was recorded at?[/QUOTE]
I am positive my computer can handle it. I had another HD camera that cost 4 times less than this one which flawlessly imported clips at 60+ fps.
And for the video playback software, (Sony Vegas, Premiere Pro, GOM player, Media Player Classic) all label the clip at 25 fps in properties. Plays at that rate too. As I've said before, the footage is supposed to be at around 50 fps from the looks of it on the camcorder LCD.
Here is a picture of the camcorder. This great camera can't be limited to 25 fps, can it? (although UI is a bit clunky)
[IMG]http://images.camcorderinfo.com/images/upload/Image/JVC/JVC%20GZ-HD7/Product_Photos/JVC_GZ-HD7_Vanity2.jpg[/IMG]
Either I'm misunderstanding the question, or this is painfully obvious.
You can't just pull fps out of your pocket.
if you want something 1:00 long at 25fps to be 2:00 long with the same footage, then the fps is going to be something like 12.5 fps
How do you not get this.
Why do you need a higher framerate? If you are going to author it to a DVD or display it on a TV or something, it will have to be 25fps to be PAL, or 29.97fps to be NTSC.
Consumer level camcorders will encode recorded footage at a maximum of 29.97fps to be compliant with NTSC an PAL unless they have a special 'high speed' feature. This is especially true for HD cameras such as yours. HD video files are very large in size, and so to keep filesize down, the camera manufacturers will have made the camera not waste any space on higher framerates that would have to be chopped down for use on DVD's and such.
I'm sorry but i don't think you're going to get more than 29.97fps out of that camera, if you want more, you'll have to start looking at professional end cameras with adjustable framerates.
i think that cam only records at 60hz
[quote]Each 1/5-in, 16:9 CCD has 570,000 elements that are progressively scanned every 1/60th second. Analog RGB signals from the CCDs are converted to digital data using 14-bit A/Ds. The Blue and Red CCDs are offset by one-half pixel from the Green CCD along both horizontal and vertical axes. Although the HD7 records only interlace video, progressive scanning CCDs are integral to generating 1952x1096 pixel frames at 60Hz from 530,000 (976x548) CCD elements. On alternate scans, 540-odd or 540-even lines from the 1096-lines become interlace fields. Each pair of fields is packed into a frame-buffer and encoded at a rate of 29.97fps.[/quote]
[url]http://www.dvinfo.net/forum/jvc-everio-gz-hd-gz-hm-series/100315-jvc-gz-hd7-pre-review-highlights.html#post722130[/url]
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