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Activity Forums DVD Authoring Audio delay probs on DVD from Architect 4

  • Audio delay probs on DVD from Architect 4

    Posted by Jeff Bellantine on April 15, 2011 at 11:14 pm

    Ok, I’m authoring an 11 min short film in Architect 4. The original footage was cut in FCP and rendered into an MPEG2 and AC3 just like I would do and have done before in Vegas.
    I tested the audio and video in Architect Preview and everything syncs just fine. When I go to burn a DVD and load that into all 3 different players the audio is slightly delayed (video lips moving before the words come out). It’s not horrible but noticeable 10 minutes in.

    I can slightly see it’s getting worse as the movie plays so I’m guessing it’s slowly getting worse in time.

    I’ve cut and rendered 3 films with Vegas and Architect 4 and never had this problem. The last film I did was cut in FCP and I rendered it for festivals in Architect and also not a problem. The editor that gave me these files is by no means a noob and he’s checked his settings but we can’t figure out the problem.

    The output properties on Architect are for NTSC Widescreen, the one thing I remember from years ago was the fps settings. I can’t seem to find them anywhere in the prop settings and not sure if I’m remembering correctly.

    At this point I’m just fishing for an answer … does this situation sound familiar to anyone?? I’m searched the previous posts and found audio probs just nothing matching what I have now.

    Thanks for all advise!!!
    Jeff

    Jeff Bellantine replied 15 years, 3 months ago 1 Member · 1 Reply
  • 1 Reply
  • Jeff Bellantine

    April 17, 2011 at 3:50 pm

    Ok, following up on my earlier post … I have some more information. The background is the movie was shot on an EX-1 at 1080p 24f.
    Project was edited in FCP and rendered out for Blu-Ray in the specs below.
    When the editor went to burn an SD version he says the specs were the same except the “name,description, file size, usage”.

    My problem is putting the SD version into Architect it will “render” and the resulting video has an audio sync problem. The audio is running about 1/2 a second behind by the end of the movie.

    So I have three files, an HD version with the below specs, an SD version with the below specs with “name,description, file size, usage” changed, and an audio (ac3) file with the below specs (so I’m using the same audio file for both video files).

    I’m simply trying to burn screeners and a master for replication. Does anyone have any advise?

    I hope these details make things clearer. I am waiting for the exact SD specs from the editor when he gets home.
    I did already check Architect for the frame rate setting and it is at 23.9, so that’s not the problem.

    VIDEO:
    Name: HD MPEG-2 19.0Mbps
    Description: For HD DVD. Fits up to 30 minutes on a DVD-5
    File Extension: m2v
    Estimated file size: 7.91 GB/hour of source
    Type: MPEG-2 video elementary stream
    Usage:HD DVD
    Video Encoder
    Format: M2V
    Width and Height: Automatic
    Pixel aspect ratio: Default
    Crop: None
    Padding: None
    Frame rate: (100% of source)
    Frame Controls: Automatically selected: Off
    Start timecode from source
    Aspect ratio: Automatic
    Selected 16:9
    Field dominance: Automatic
    Average data rate: 18 (Mbps)
    2 Pass VBR enabled
    Maximum data rate: 27 (Mbps)
    High quality
    Best motion estimation
    Closed GOP Size: 1/2 second, Structure: IBBP
    DVD Studio Pro meta-data enabled

    AUDIO:
    Name: Dolby Digital Professional 2.0
    Description: 2.0 Dolby Digital audio at 192kbps
    File Extension: ac3
    Estimated file size: 82.4 MB/hour of source
    Audio Encoder
    Format: AC3
    Sample Rate: 48.000kHz
    Channels: 2
    Bits Per Sample: 16
    Target System: DVD Video
    Data Rate: 192 kbps
    Compression Preset: Film Standard
    Audio Coding Mode: 2/0 (L, R)
    BitStream Mode: Complete Main
    Center Mix Level: -3dB
    Surround Mix Level: -3dB
    Dolby Surround Mode: None
    LFE Exists: No
    Dialog Normalization: -27 dbFS
    Copyright Exists: Yes
    Original Content: Yes
    Audio Production Information Exists: No
    RF Overmodulation Protection: Off
    Channel Bandwidth Lowpass Filter: On
    DC Highpass Filter: On
    LFE Channel Lowpass Filter: On
    3dB Attenuation: Off
    phase 90: Off
    Deemphasis: Off

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