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kalamazoofumc
Participant
August 15, 2018
Answered

Audio Desyncing after import

  • August 15, 2018
  • 1 reply
  • 787 views

Hello,

I am having an issue where after I import a video file (MPEG-4 movie) into Premiere Elements the audio is completely desynced from the video. When I watch the video in quicktime the audio is fine, but after import into Premiere Elements it is completely off. After spending about 10 min trying to move the audio back into place it seems that somwhere the audio got completely messed up. This is because it can be matched up in the beginning, but another 1o or 15min in the audio will again be ahead or behind. Thus meaning the audio is not syncing the same as the video.

I have tried with other similar video files to recreate the issue, but haven't had any luck doing so.

Not sure what im doing wrong, But if anyone has any helpful insight it would be great.

    This topic has been closed for replies.
    Correct answer Steve Grisetti

    Ok, I ran the video through handbreak and created an MP4, then loaded that video into Premiere Elements. The audio is still a second or 2 off from the video, which is much closer than the original problem I was having with the audio being 5-6 seconds off.

    The video is not from a camcorder. We are using 3 of Panasonic AW-HE40SK PZT Camera with HD-SDI Output. They are eventually being sent to Wirecast V.8.2.0. where we stream and record.


    This is not really the kind of consumer camcorder this program is designed to work with. It's a $100 program -- not really made to interface with a $3500 camcorder.

    I'd recommend you edit with a professional program, like Premiere Pro CC. This video may well be out of this little consumer program's league.

    1 reply

    S
    Steve Grisetti
    Legend
    August 15, 2018

    This is likely an issue with your video using a variable frame rate.

    Open your video in the free download MediaInfo. In MediaInfo, set View to Text and then copy and paste the report it generates to this forum. Once we know what your video is made of we'll be better able to advise you.

    K
    kalamazoofumcAuthor
    Participant
    August 22, 2018

    General

    Complete name                            : /Volumes/Service Storage/All services/2018/"Under Heaven-The Seasons of Life" 08:12 -1000.mp4

    Format                                   : MPEG-4

    Format profile                           : Base Media / Version 2

    Codec ID                                 : mp42 (mp41/mp42/isom)

    File size                                : 1.58 GiB

    Duration                                 : 1 h 10 min

    Overall bit rate mode                    : Variable

    Overall bit rate                         : 3 202 kb/s

    Encoded date                             : UTC 2018-08-12 15:17:50

    Tagged date                              : UTC 2018-08-12 15:18:03

    Video

    ID                                       : 1

    Format                                   : AVC

    Format/Info                              : Advanced Video Codec

    Format profile                           : Main@L3.1

    Format settings                          : CABAC / 2 Ref Frames

    Format settings, CABAC                   : Yes

    Format settings, ReFrames                : 2 frames

    Codec ID                                 : avc1

    Codec ID/Info                            : Advanced Video Coding

    Duration                                 : 1 h 10 min

    Source duration                          : 1 h 10 min

    Source_Duration_LastFrame                : 6 s 233 ms

    Bit rate mode                            : Variable

    Bit rate                                 : 3 069 kb/s

    Maximum bit rate                         : 768 kb/s

    Width                                    : 1 280 pixels

    Height                                   : 720 pixels

    Display aspect ratio                     : 16:9

    Frame rate mode                          : Constant

    Frame rate                               : 30.000 FPS

    Color space                              : YUV

    Chroma subsampling                       : 4:2:0

    Bit depth                                : 8 bits

    Scan type                                : Progressive

    Bits/(Pixel*Frame)                       : 0.111

    Stream size                              : 1.52 GiB (96%)

    Source stream size                       : 1.52 GiB (96%)

    Title                                    : Core Media Video

    Encoded date                             : UTC 2018-08-12 15:17:50

    Tagged date                              : UTC 2018-08-12 15:18:03

    Audio

    ID                                       : 2

    Format                                   : AAC

    Format/Info                              : Advanced Audio Codec

    Format profile                           : LC

    Codec ID                                 : mp4a-40-2

    Duration                                 : 1 h 10 min

    Source duration                          : 1 h 10 min

    Bit rate mode                            : Constant

    Bit rate                                 : 128 kb/s

    Channel(s)                               : 2 channels

    Channel positions                        : Front: L R

    Sampling rate                            : 44.1 kHz

    Frame rate                               : 43.066 FPS (1024 SPF)

    Compression mode                         : Lossy

    Stream size                              : 64.8 MiB (4%)

    Source stream size                       : 64.8 MiB (4%)

    Title                                    : Core Media Audio

    Encoded date                             : UTC 2018-08-12 15:17:50

    Tagged date                              : UTC 2018-08-12 15:18:03

    K
    kalamazoofumcAuthor
    Participant
    August 22, 2018

    Looks like my frame rate for my video is lower than the frame rate for the audio. Is that the problem you are seeing Steve?

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