Audio drift with HDV (25fps 48k) footage and split field recorder audio (48k)

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split audio , audio captured footage start synced split sound drifts increasinly on time.

 

i've tried 24bit (audio) captured on field recorder , 16bit converted file - same issue.

 

weirdly, when time compress split audio (100.4%) - waveforms visually line when rendered or playedback, drift still there ie - if play split audio only, i'm hearing playback drifting/delayed second or 2 towards end of hour long shot. audio corresponding peaks in waveform happens (increasingly) after playhead hit , passes peak. (i hope makes sense)

 

any suggestions? i've missed deadline because of issue. in advance.

 

video

***** analyzed file results *****

*** general parameters ***

- name:  prism talk ooc melb.mpeg

- container:  mpeg transport stream

- size:  12.133 gb

- duration:  1h 2mn

- bitrate:  26.1 mbps

 

*** video track parameters ***

- format:  mpeg-2 video

- bitrate:  max.: 25.0 mbps / average: 24.4 mbps / min.: undefined

- frame rate (fps):  max.: undefined / average: 25.000 / min.: undefined

- encoding profile:  main@high 1440

- image size:  1440*1080

- pixel aspect ratio:  undefined

- display aspect ratio:  16:9

- interlacing:  progressive

 

*** first audio track parameters ***

- format:  mpeg-1 layer 2 (mp2)

- bitrate:  384 kbps

- resolution:  undefined

- rate:  48.0 khz

- channel(s):  2 (stereo)

- position:  undefined

 

*** miscellaneous ***

- subtitle(s): no subtitle

- album: undefined

- performer: undefined

- genre: undefined

- encoded date: utc 2012-10-14 12:41:03

- album artist: undefined

 

audio

***** analyzed file results *****

 

*** general parameters ***

- name:  1004.wav

- container:  microsoft wave

- size:  2.309 gb

- duration:  2h 13mn

- bitrate:  2 304 kbps

 

*** video track parameters ***

- format:  no video track

- bitrate:  

- frame rate (fps):  

- encoding profile:  

- image size:  

- pixel aspect ratio:  

- display aspect ratio:  

- interlacing:  

 

*** first audio track parameters ***

- format:  uncompressed pcm

- bitrate:  2 304 kbps

- resolution:  24 bits

- rate:  48.0 khz

- channel(s):  2 (stereo)

- position:  undefined

 

*** miscellaneous ***

- subtitle(s): no subtitle

- album: undefined

- performer: undefined

- genre: undefined

- encoded date: 2012:10:14 13:03:52

- album artist: undefined

that sounds 1000/1001 audio resampling. indeterminate media timebase in preferences>media set 25fps?



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