danf Posted October 16, 2008 Share Posted October 16, 2008 How do you guys convert your animations to NTSC video without getting interlaced fields or desynced audio? Quote Link to comment Share on other sites More sharing options...
Hash Fellow robcat2075 Posted October 16, 2008 Hash Fellow Share Posted October 16, 2008 As far as I know A:M doesn't accomodate 29.97 directly. forcing your 30 fps footage to 29.97 in another editing program shouldn't cause an audio sync problem until you reach lengths of 30 seconds or more. What to do over 30 seconds? For most productions individual shots usually don't last that long so there shouldn't be any drift noticeable as each shot in your NLE begins with the audio back in synch. But I don't know how A:M's own NLE handles 29.97. Anyone? Interlacing is a different issue. Normally, you won't choose "Interlace" as an option in A:M. After what stage in your editing process are you seeing the interlacing appearing? Quote Link to comment Share on other sites More sharing options...
John Bigboote Posted October 17, 2008 Share Posted October 17, 2008 29.97 is known as 'drop-frame'...meaning it will drop an entire frame at a rate of about 1 per minute of animation. Is that something to worry about? Absolutely not. Quote Link to comment Share on other sites More sharing options...
Hash Fellow robcat2075 Posted October 17, 2008 Hash Fellow Share Posted October 17, 2008 29.97 is known as 'drop-frame'...meaning it will drop an entire frame at a rate of about 1 per minute of animation. Is that something to worry about? Absolutely not. 29.97 vs. 30 is a difference of almost 2 frames every minute. Being two frames off will be noticeable to most people and just become more obvious as the minutes pile up. If you are taking clips of less than 30 seconds into a 3rd Party NLE like Premiere it shouldn't have a problem with those, but I don't know what happens with 30fps productions edited in A:M's NLE are more than 1 minute in duration. Fun fact: 29.97 was a solution for problem that never existed. This long read explains it but basically the notion that the frame rate change was needed to accomodate color was the result of bad guess work by an engineer and never demonstrated to be correct. But it's entrenched now and we have to live with it. Quote Link to comment Share on other sites More sharing options...
frosteternal Posted October 17, 2008 Share Posted October 17, 2008 29.97 is known as 'drop-frame'...meaning it will drop an entire frame at a rate of about 1 per minute of animation. Is that something to worry about? Absolutely not. 29.97 vs. 30 is a difference of almost 2 frames every minute. Being two frames off will be noticeable to most people and just become more obvious as the minutes pile up. Drop-frame is unnecessary, and hopefully, will be phased out with new technology. However, most (semi-pro) editing programs will seamlessly change from 30 to 29.97 without any frame losses "piling up". I prefer to animate at 24fps and then let AE worry about it later =) Quote Link to comment Share on other sites More sharing options...
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