CH_NL Posted October 19, 2011 Share Posted October 19, 2011 Hi there, Most theatres appear to be using 4:3 beamers. Looking for advice on how best to convert widescreen videos to 4:3 without too much loss in quality, so I can use the full screen. Any (preferably free) MAC sofware that will do the trick? Or is there a way to do this in QLab including pro-video extension? cheersCH_NL Link to comment Share on other sites More sharing options...
MrJustin Posted October 19, 2011 Share Posted October 19, 2011 Probably best not to convert it at all, just let the playback software or even the projector itself do the necessary scaling for you. just poke about in whatever aspect settings you have available... Link to comment Share on other sites More sharing options...
Modge Posted October 19, 2011 Share Posted October 19, 2011 I believe:avidemux (which is multi platform) will do it. http://avidemux.sourceforge.net/ Link to comment Share on other sites More sharing options...
timsabre Posted October 19, 2011 Share Posted October 19, 2011 Probably best not to convert it at all, just let the playback software or even the projector itself do the necessary scaling for you. just poke about in whatever aspect settings you have available... It probably won't fill the screen then though, most projectors will just show it letterboxed, and he said he wanted to use the full screen. Link to comment Share on other sites More sharing options...
MrJustin Posted October 19, 2011 Share Posted October 19, 2011 It probably won't fill the screen then though, most projectors will just show it letterboxed, and he said he wanted to use the full screen. There will still be a way of scaling the 16:9 video so that it fills the 4:3 projection area. for instance in VLC.... Video>Crop>4:3 Always better to avoid rerendering the video as this will almost always create additional artefacts, not to mention making life unnecessarily complicated / time consuming. Link to comment Share on other sites More sharing options...
Gareth A Posted October 20, 2011 Share Posted October 20, 2011 For the MAC try Handbrake. . does most things. Link to comment Share on other sites More sharing options...
sleepytom Posted October 21, 2011 Share Posted October 21, 2011 Sorry if this is obvious, but... You can't show 'full screen' 16:9 on a 4:3 display without letterboxing. The choices you have are letterbox (black bars at top and bottom), Edge crop (cuts the edges off so the centre 4:3 area of the 16:9 image is displayed filling the 4:3 display). There is also conversion to 14:9 which is a compromise aspect used in broadcast, this is a combination of letterbox and edge crop which give smaller black bars and less missing from the edge. (you can also squeeze the 16:9 into 4:3 but then everything is the wrong shape! not recommended..) pretty much any decent media converter software will have the ability to do all of these, you just need to pick one and then choose the correct combination of crop and resize filters. Link to comment Share on other sites More sharing options...
kitlane Posted October 21, 2011 Share Posted October 21, 2011 ...or you could squash and squeeze the 16:9 into 4:3 giving you a horribly distorted image. Or in theory you could 'Pan & Scan' which is like edge cropping but the area that is displayed can move side to side to follow the important part of the image. Link to comment Share on other sites More sharing options...
PeterT Posted October 21, 2011 Share Posted October 21, 2011 Apologies for hijacking the thread but I have a similar question of sorts. Doing Acorn Antiques next week with two sets of videos Adverts to be projected are done in 4:3 and will be shown on Theatre's projectorLiving will bit to be shown on Widescreen TV in 16:9 Adverts have been created in 4:3 and the living will bit in 16:9Playback will be via Macbook Pro using Qlab and pushing it out via SVideo to an Edirol V4 mixer then a buffered output to the projector and the TV. My question is will the Mac, Qlab and the V4 maintain these ratios I have created or will they simply squish them to a one size fits all type deal? Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.