4 Replies Latest reply on Jul 22, 2009 10:41 AM by VF1SValkyrie

    Audio and Video Eventually Desync

    VF1SValkyrie

      I'm attempting to render a secondary audio track to a video file. It starts off fine, but by the end of the movie (2 plus hours later), the audio of the movie itself and the secondary audio aren't synced with the video. The video lags behind the audio by a second or two. What is weird is that the two audio tracks remained synced with each other. When I go back and check the .prproj file, the both audio tracks have lost sync with the video, even though it was fine before I exported everything. I'll list all the specs that I think may help.

       

      Computer:

      Windows Vista Ultimate

      4 gigs of RAM

      ATI Mobility Radeon HD 3450 video card

      Adobe CS3

       

      Source File 1: (the movie with it's own audio)

      AVI

      23.97 FPS

      664 x 274

      32 bit Stereo

       

      Source File 2: (the secondary audio track)

      MP3

      32 bit Stereo

       

      Exported Movie:

      29.97 FPS

      720 x 480

      32 bit Mono

       

      Thank-you very much for any assistance you can provide.

        • 1. Re: Audio and Video Eventually Desync
          John T Smith Adobe Community Professional & MVP

          MP3 is not good, see if it works after you convert to WAV

           

          Also, work through all of the steps here http://ppro.wikia.com/wiki/Troubleshooting

           

          If your problem isn't fixed, report back with the DETAILS asked for in the questions at the end of that link

          • 2. Re: Audio and Video Eventually Desync
            VF1SValkyrie Level 1

            Ok, I've done the best I can with answering the questions. Thank-you for directing me to that site. I skipped the ones that didn't apply.

             

            1.       Codecs Used in source clip:

            Video: DX50 XviD 1.0.3

            Audio: 0x0055 MPEG-1 Layer 3

            Audio 2: MPEG-1 Layer 3

            2.       Premiere Pro:

            Version Number: 3.0.0 (374)

            Installation Language: English

            Project/Sequence Settings: Default

            3.       Operating System:

            Windows Vista Ultimate

            Latest Patch

            Installed Language: English

            Resolution: 1280x800

            Colors: 32 bit

            4.       CPU

            AMD Turion X2 Ultra Dual-Core Mobile ZM-84 (2.3 GHz)

            5.       Amount of Memory

            4.00 GB

            6. Video Card

            Manufacturer: ATI Radeon

            Model: HD 3450

            Driver: atidxx64.dll

            Version: 7.15.0010.0096

            7. Monitors in use: 1

            8. Audio Card

            Manufacturer ID: HP

            Driver: HDAudio.sys

            Version: 6.00.5840.16387

            9. Hard Drive

            69 GB out of 222 GB

             

            What I want to do: Add another audio track to a movie with its own audio and video tracks.

            What I’m doing: Importing the movie, and then importing the secondary audio. I add both to the timeline, and line them up the way I want by moving the clips back and forth.

            The Result: The both audio tracks lose sync with the video by the end of the two hour movie. The video is roughly a second behind the audio.

            I’ve never done anything like this before.

            • 3. Re: Audio and Video Eventually Desync
              John T Smith Adobe Community Professional & MVP

              Codecs Used in source clip:

              Video: DX50 XviD 1.0.3

              Audio: 0x0055 MPEG-1 Layer 3

              Audio 2: MPEG-1 Layer 3

               

              Xvid is a highly compressed delivery format, not meant to be edited

               

              http://premierepro.wikia.com/wiki/FAQ:How_do_I_convert_my_files%3F

               

              Convert to DV AVI type 2 for editing

              • 4. Re: Audio and Video Eventually Desync
                VF1SValkyrie Level 1

                Thank-you! Converting to a different codec fixed the problem.