Some video editing
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Category: Other Chat
Forum Name: Computer Talk
Forum Description: Help and discussion about your manly PC or girly Mac
URL: https://forum.speakerplans.com/forum_posts.asp?TID=77658
Printed Date: 26 March 2026 at 10:56pm
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: Some video editing
Posted By: Adam_Iron_Horse
Subject: Some video editing
Date Posted: 02 April 2013 at 4:08am
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Hey, For one of my modules for uni I have to record some video in HD and edit it all together. I have Premiere Pro on my laptop but its struggling to play the files skipping etc when I am trying to play it back. Any tips on how to speed it up a bit? Its an acer aspire 5733z Windows 7 64 bit 6Gb Ram 500Gb Hardrive Intel Pentium 2.27GHz processor I do have an external monitor plugged in but dunno if that would make much difference? I can go an edit in the labs at uni but its just more convenienet if i can manage it at my flat. So yeah if any one can think of little things thatll speed it up fire away please! Also have a 2TB external drive on a USB 3.0 |
Replies:
Posted By: shagnasty
Date Posted: 02 April 2013 at 8:20am
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What codec are you using?Whilst that spec of machine won't handle un-compressed HD you could be crippling the machine if it is doing too much work with de-coding the video. My advice, drop to 480p, decide what you want to do, make a cut list and then drop the 1080p back in and produce the video, that way you won't need to view any HD video in P Pro. HD Video Editing on laptops is a nightmare as you invariably have slow HDDs unless you go SSD
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Posted By: Adam_Iron_Horse
Date Posted: 02 April 2013 at 2:32pm
Sorry not entirely sure what a codec is? The files say they are in AVCHD format. Im totally useless at this tbh we haven't really been told much about that just told to record some videos and edit them together in P pro how would I go about doing that? |
shagnasty wrote:Posted By: slaz
Date Posted: 02 April 2013 at 6:13pm
.... so the old off-line/on-line business (from the days of ye olde analogue tape) is back then ?  AFAIK the gist of it is - make sure there's plenty of CPU brute force and plenty of RAM, but no particular need for fancy graphics cards - these are only fancy wrt 3D, which is irrelevant really to video editing (unless mebbe if you're doing 3D-type transitions). The good news is that (I'm told) many codecs are very good at utilising lots of CPU cores ..... so if you can borrow a 4-6-8 core machine it'll do the job well. ------------- REMEMBER....POLITICIANS AND DIAPERS SHOULD BE CHANGED OFTEN AND FOR THE SAME REASON |
Posted By: TENSiON
Date Posted: 02 April 2013 at 7:43pm
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slaz, you are a bit off with the "no need for GFX card", as a GFX card with hardware AVCHD decoding is actually quite essential to make working with 1080p content on slower machines at least remotely feasible.. You have 2 major bottle-necks when working with HD content: 1.) CPU power (for decoding/encoding) and 2.) storage/memory throughput. When hardware supported decoding (from GFX) is thrown into the mix, or your CPU has balls enough to handle it all fluently in real time, then the only thing that remains is the storage/memory throughput (as already mentioned in the post by shag above). Anyways, what's lacking most in your speciffic case is your CPU and no GFX hardware decoding support whatsoever, so your best bet would probably be (as sheggers already suggested) - do all the editing in 480p, and change to 1080p just for the final export. Creating a RAMdrive (to temporarily put the source material on) could also considerably improve the whole editing process, but is not essential. |
Posted By: slaz
Date Posted: 02 April 2013 at 8:20pm
Am I ? OK sorry .... must admit I don't have any experience of working with HD. I-n the o-olde daays we used whole sub-systems on a PCI card (and before that, ISA cards + Zorro cards) that had ADC, DAC, SCSI bus or IDE i/f with hard drives dedicated to video storage, frame buffers etc. .... these had hardware motion-jpeg chips on em. The host PC didn't need much power really - just decent 2D performance. Oh well - I'd better shut up and go backi to smoking my pipe in my rocking chair ------------- REMEMBER....POLITICIANS AND DIAPERS SHOULD BE CHANGED OFTEN AND FOR THE SAME REASON |
Posted By: kevinmcdonough
Date Posted: 02 April 2013 at 8:50pm
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hey lmao ok to go back a bit and explain some of what they've brushed over: You get lots of different image formats: jpeg, gif, png etc etc, and you get lots of different audio formats: wav, mp3, ogg, etc etc. In the same way you also get lots of different video formats, mpeg1, mpeg2, divX, Xvid, h.264, avi, mkv and so on (though the last two are actually just containers for other formats). They're essentially just different ways of writing the information down, sometimes giving you better compression ratios sometimes being quick and easy to work with, but for each one your computer needs a little translator file so it understands it and can reconstruct the video out of it to display on your screen. these little files are called Codecs. As your trying to edit the computer is having to use the codecs to translate the video information back to normal to even display it on the wee preview window, and this takes a fair bit of processing power (big video editing machines often have the codecs actually hardwired into specific chips that do the decoding for them, but you dont have that!) Also, as your working at a high resolution you'll need a very high data rate, which you wont get from an external hard drive and even your internal one may struggle. So your best bet as someone said is to make much lower resolution copies of your files and get them onto your internal drive, this should make editing go a bit smoother. then once your happy with everything do a trial export and see what it looks like. Make any last minute changes and when your totally happy, relink to the full resolution versions of the files and do your final export. k |
Posted By: Adam_Iron_Horse
Date Posted: 03 April 2013 at 1:45am
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Ok guys cheers, Don't really have the money or time to upgrade my laptop atm and thanks kevin for explaining that. Iv found that atm if i render the clips after editing it each time then it runs pretty smoothly but if i leave it without rendering it skips like hell. I could possibly try the put it in lower quality then do it back up but think ill get by doing it the way I am atm.. Thanks for the help guys |
Posted By: Adam_Iron_Horse
Date Posted: 03 April 2013 at 12:09pm
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Ok so I'v pretty much just about finished now and was checking out the brief I have to hand in in 3 different formats 1 - 1-off video clip for playback on a portable device of your choice. 2 - 1-Off video clip for playback via web streaming. 3 - 1-off video clip for broadcast in HD video format. any suggestions what I should do for these? |
Posted By: kevinmcdonough
Date Posted: 03 April 2013 at 5:32pm
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Portable, the iPhone or galaxy s3 are the most popular smartphones so choose whatever format and resolution suits them. For video 480 in h.264 should be fine, with high speed broadband so common now these don't have to be a small as they used to be, and high Def probably 1080p unless you have a reason to do 720.. |
Posted By: waterhouserock
Date Posted: 03 April 2013 at 6:30pm
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codec = compression/ decompression. your laptop has to do this on the fly which is ram intensive but not so much as raw image files. edit and preview in lowest "workable" quality and render out to desired quality/codec to enable real time playback during editing. cant help with phone formats...theres lots of codecs..find out what suits your needs..and render to soze/data rate/codec required...years since i worked in video industry..was all oncompressed 720x576 on pvr drives and digi beta machines with avid/pc/capture cards then.
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Posted By: jamwa
Date Posted: 04 April 2013 at 2:31pm
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what speed is your computers harddrive anything slower that 72,000rpm then video editing wont work - solid state is best....you dont need massive amounts of RAM or a super fast graphics card anything that will run HD 720P would be fine. also make sure your settings are all correct when capturing from camera (source) to PC. ------------- Sound, Light, Projection, Display, Cameras and production support |
Posted By: Adam_Iron_Horse
Date Posted: 04 April 2013 at 5:59pm
Hard drive is 72000rpm but its all done now guys and thats first year of uni over! |