Audio sync is off by the end of recordings

Hello,
I have some recordings in .AVI format that were made earlier this year. The files were made using a Black Magic capture card, and their Media Express recording program. These recordings are approximatly 2-3 hours in length.
I have discovered that although the audio is synchronized at the beginning of the recordings, it is off by as much as 1-2 seconds by the end of the recording.
Is there a way in Premiere Elements 8 to correct the audio so that it is properly synced over the entire recording?
Thank you!

Welcome to the forum.
Unfortunately, you have posted to the Tips & Tricks sub-forum, which is a repository for tips on how to do things in PrE. Our MOD, Steve, will probably move this out to the main forum, so that more users can see and respond.
Now, regarding the AVI's, that term is just a wrapper, and it's what's inside that really matters. This ARTICLE will give you some background.
It is likely that the BM CODEC is causing the sync drift. Dynamic OOS correction is a bit harder, than static OOS, but this ARTICLE will step you though the process.
Good luck,
Hunt

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General
ID                                       : 0 (0x0)
Complete name                            : C:\Users\Public\Videos\S-Video_20141020_1928.ts
Format                                   : MPEG-TS
File size                                : 3.00 GiB
Duration                                 : 55mn 32s
Overall bit rate mode                    : Variable
Overall bit rate                         : 7 740 Kbps
Video
ID                                       : 1001 (0x3E9)
Menu ID                                  : 1 (0x1)
Format                                   : MPEG Video
Format version                           : Version 2
Format profile                           : Main@Main
Format settings, BVOP                    : Yes
Format settings, Matrix                  : Default
Format settings, GOP                     : M=3, N=12
Codec ID                                 : 2
Duration                                 : 55mn 32s
Bit rate mode                            : Variable
Bit rate                                 : 7 163 Kbps
Maximum bit rate                         : 8 500 Kbps
Width                                    : 720 pixels
Height                                   : 480 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 29.970 fps
Standard                                 : NTSC
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan order                               : Top Field First
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.692
Time code of first frame                 : 02:17:15:16
Time code source                         : Group of pictures header
Stream size                              : 2.78 GiB (93%)
Audio
ID                                       : 1002 (0x3EA)
Menu ID                                  : 1 (0x1)
Format                                   : MPEG Audio
Format version                           : Version 1
Format profile                           : Layer 2
Codec ID                                 : 4
Duration                                 : 55mn 32s
Bit rate mode                            : Constant
Bit rate                                 : 192 Kbps
Channel(s)                               : 2 channels
Sampling rate                            : 48.0 KHz
Compression mode                         : Lossy
Delay relative to video                  : -297ms
Stream size                              : 76.3 MiB (2%)
Menu
ID                                       : 1000 (0x3E8)
Menu ID                                  : 1 (0x1)
Duration                                 : 55mn 32s
List                                     : 1001 (0x3E9) (MPEG Video) / 1002 (0x3EA) (MPEG Audio) / 1003 (0x3EB) ()

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