Adywan thanks for checking out my release. :) dark_jedi is correct I used DarthEditous' AC3 rips from the NTSC LaserDiscs that Jetrell Fo supplied me with.
I'm sorry to hear that there are problems with the audio! To be honest audio is not really my thing I am much more of a video guy, it also doesn't help that I don't have a 5.1 set-up. I hope to get some Dolby certified 5.1 headphones in the future but for now its just not in the budget. :(
If I remember correctly the method I used to get these to sync, which is not perfect, well in fact its probably terrible and is not the one I would use knowing what I do now, was:
1. Open each AC3 file in Apple Compressor and export as a 5.1 LPCM audio only quicktime .mov using Compressor's built in retime function to go from 23.976 to 25fps duration, from what I read online Compressor's retime function is suppose to correct/compensate for the pitch shift.
2. In Final Cut Pro I had already edited together my LaserDisc captures (video & audio) so I knew the stereo (Dolby Surround) audio was in sync to the video.
3. To get the audio to sync I added 6 extra audio tracks to the timeline of each film, and imported the 5.1 LPCM .mov files I had created earlier.
4. As dark_jedi mentioned they didn't sync properly so I turned on the audio waveforms so I could see what I was doing and then using the centre channel of the 5.1 and the stereo from the LaserDiscs I lined up the start of the audio and then moved along to the end and adjusted the playback speed of the 5.1 audio in Final Cut Pro as necessary to get the ends to line up, I then scrubbed through checking the waveforms to make sure they didn't go wildly out of sync between start and finish.
5. Once I had done one audio segment I just repeated the process for the others as there was 3 for each film. With the 5.1 audio sync'd I removed the LD stereo audio from the timeline leaving just the 6 5.1 tracks in the order L,R,C,LFE,Ls,Rs
6. With the audio sync'd I sent the timelines to Compressor and used that to export the M2V and Dolby 5.1 AC3 files to author the DVDs.
The reason I never did an NTSC version of the '97SE LaserDiscs was because no matter what I did when I exported the M2V and AC3 files for NTSC the audio and video would not match up. :(
Post #478695
- Author
- LeeThorogood
- Parent topic
- .: LeeThorogood's PAL LaserDisc Preservation Project :. - '97 SE Finished '95 THX Finished - '97 SE Uploaded '95 THX Uploaded to the newsgroup
- Link to post in topic
- https://originaltrilogy.com/post/id/478695/action/topic#478695
- Date created
- 27-Feb-2011, 3:23 PM