Wendy Rubin
September 21st, 2006, 08:59 PM
We accidentally recorded in 30p NATIVE. We recorded the audio separately at 30fps, but cannot sync them. Does anyone know how to fix???
Thanks!
Thanks!
View Full Version : 30PN- whoops!! need help syncing Wendy Rubin September 21st, 2006, 08:59 PM We accidentally recorded in 30p NATIVE. We recorded the audio separately at 30fps, but cannot sync them. Does anyone know how to fix??? Thanks! Mike Schrengohst September 21st, 2006, 10:44 PM You mean like the audio was recorded on a audio recorder and not the HVX?? The HVX can record very good audio.... But if it was all 30p??? Please explain Wendy Rubin September 21st, 2006, 11:29 PM It is not possible to record audio when the camera is in the 30pn mode to the P2 cards. We had a separate audio recorder and recorded it at 30fps. When we sync in FCP, it loses lock in about 5 seconds. Something weird is going on... We called panasonic and their suggestion was to post here. Barry Green September 22nd, 2006, 12:29 AM It's certainly possible to record audio when shooting 720/30pN. That's no problem at all. The only time it doesn't record audio is if you're overcranking or undercranking. But if you're shooting 720/30pN at 30fps, it recorded audio on the cards. Second, why wouldn't it sync? Audio doesn't have a "frame rate", and both the video and audio should be crystal-controlled, so as long as you have a point of reference for the start of the shot it should stay in sync, at least for a long time... Jason Boyce September 22nd, 2006, 02:13 AM Is your timeline at 30PN as well? If your timeline is set to 24PN and you put in a 30PN clip, that might account for the difference. Wendy Rubin September 22nd, 2006, 02:23 AM This is the info off the card: vformat: dv100_720/59.94p frame rate:29.97 rec rate: 24f The menu says: rec format: 720p/30p rec mode: dvcpro50 Not sure exactly what what happened when we recorded it. When we called Panasonic, they said that it was at 30pnative. Regardless, we can't get the sound to sync. I just did a new sequence with the timeline with the set-up at 720/30p and still have the sync issue. It doesn't even last 1 1/2 seconds before it seems to go completely out. The audio is going at a much slower rate than the video. All suggestions are welcome :) Thanks Mike Schrengohst September 22nd, 2006, 10:22 AM Make sure you sample rates are at 48K, what did you record the audio with? Wendy Rubin September 23rd, 2006, 11:50 AM recorded audio on a hard disc audio recorder. Someone suggested that the issue may have to do with Metadata. Don't know what that is...? Mike Schrengohst September 23rd, 2006, 01:20 PM How are you dumping the audio into your system?? What is the sample rate?? Wendy Rubin September 23rd, 2006, 01:23 PM It was just copied from the audio hard drive to my external drive. It was originally recorded as a WAV file. Then just imported into FCP. Nate Weaver September 23rd, 2006, 01:36 PM So Rec Rate says 24P? Sounds like you overcranked 30fps while recording in 24p mode. That wouldn't be 30pn mode; that's why nothing is syncing. In other words, you shot 124% slow motion. It's so slight it doesn't look much like slow motion, though. If you set the files to play back at the frame rate they were shot at, then your files become "real time" then. If you're on a Mac, you can use Cinema Tools to conform these files to 29.97. Of course I could be diagnosing this wrong, but... Wendy Rubin September 23rd, 2006, 01:39 PM Thanks-I'll give it a shot now! Wendy Rubin September 23rd, 2006, 02:14 PM In cinema tools, it says the frame rate is 29.97. Not sure what to do... Mike Schrengohst September 24th, 2006, 06:48 PM Duplicate that clip and then conform it to 23.98..... It may also need Reverse Tele-cine.... Don't perform these procedures on your original clip. Then put your conformed clip in a 720 24p sequence... drop you audio in and see where you are at.... If that is not the problem duplcate your audio... then try stretching it our 124% or shrinking it by 80%... Kinda like skating on marbles??? Wendy Rubin September 25th, 2006, 11:03 AM Right on! That worked. Didn't need the rev telecine. I do have to render the conformed clip when I place it in the 24p sequence. Can you tell me what we did wrong when we shot it? Thanks!!!! Wendy Mike Schrengohst September 25th, 2006, 03:16 PM You did not do anything "wrong: per se..... You probably shot 24p in the 29.97 setting.... which is OK if you were editing in 29.97.... If you told the sound guy you were recording 24p then that is the speed he ran at.... What you really wanted to do was shoot 720 24pN...that shoots only the native 24 fps and will drop right into a 24p timeline.... PS-I looked at your website and you have done some great work.... |