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25 FPS to 23.976 FPS

Discussion in 'Blu-ray players' started by BSouders8, Jan 29, 2009.

  1. BSouders8

    BSouders8 Member

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    I have some movies that have the audio and video set at 25 FPS. I use Ripbot264 to convert the video to 23.976, but my audio is out of sync because it was encoded for a video at 25 FPS. So how can I slow the audio down a bit to sync with the 23.976?

    Can I demux the two files and run the audio through something? Can the audio fix be done with a program? I read somewhere that a little program called besweet can be used, but it is a command you run at dos prompt. I have used things similar to convert audio from DTS to AC3, but I would rather do it somehow with a GUI.

    Any suggestions would be appreciated.

    Knox
     
  2. attar

    attar Senior member

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    Since I don't know what type of video (or audio) is involved, I can only generalize.

    Since the audio has to be stretched to fit the video, this .mp4 file was loaded into AviDemux.
    The Video is set to 'Copy' and the output 'MP4'.
    The audio (in this case it's .aac) is stretched using the 'PAL to Film' filter.
    Click on the 'Save' logo and give the new file a name (include the extension) e.g. newfile.mp4

    http://www.afterdawn.com/software/video_software/video_tools/avidemux.cfm



    [​IMG]
     
  3. BSouders8

    BSouders8 Member

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    Sorry, here is the info.

    General
    ID : 1
    Complete name : C:\****.bluray\BDMV\STREAM\00001.m2ts
    Format : BDAV
    Format/Info : BluRay Video
    File size : 4.37 GiB
    Duration : 1h 40mn
    Overall bit rate : 6 212 Kbps
    Maximum Overall bit rate : 35.5 Mbps

    Video
    ID : 4113 (0x1011)
    Menu ID : 1 (0x1)
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : High@L4.0
    Format settings, CABAC : Yes
    Format settings, ReFrames : 3 frames
    Duration : 1h 40mn
    Bit rate : 5 317 Kbps
    Nominal bit rate : 5 208 Kbps
    Width : 1 920 pixels
    Height : 1 080 pixels
    Display aspect ratio : 16/9
    Frame rate : 23.976 fps
    Resolution : 24 bits
    Colorimetry : 4:2:0
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.105
    Writing library : x264 core 65 r999M cc51047
    Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=7 / psy_rd=1.0:0.0 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / chroma_qp_offset=-2 / threads=6 / nr=0 / decimate=1 / mbaff=0 / bframes=3 / b_pyramid=1 / b_adapt=1 / b_bias=0 / direct=3 / wpredb=1 / keyint=250 / keyint_min=25 / scenecut=40(pre) / rc=2pass / bitrate=5208 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=30000 / vbv_bufsize=30000 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:1.00

    Audio
    ID : 4352 (0x1100)
    Menu ID : 1 (0x1)
    Format : AC-3
    Format/Info : Audio Coding 3
    Duration : 1h 40mn
    Bit rate mode : Constant
    Bit rate : 640 Kbps
    Channel(s) : 6 channels
    Channel positions : Front: L C R, Rear: L R, LFE
    Sampling rate : 48.0 KHz
     
  4. odin24

    odin24 Regular member

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    Not sure about avidemux, I have used eac3to with great results a couple of times. It is command prompt though. Work with the raw audio file itself, demux using tsMuxeR or eac3to... eac3to will also remove dialnorm if present (which is a good thing).

    folder\eac3to.exe sourcefile.ac3 destfile.ac3 -25.000 -changeTo23.976
     
  5. attar

    attar Senior member

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    @odin24

    Sounds like the solution.
    What do you use to play .m2ts files (I only have downloaded samples and while I can demux them, I cannot get any video playback).
    Is Tsmuxer used to mux the files?
     
  6. BSouders8

    BSouders8 Member

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    Cyberlink PowerDVD plays the .m2ts files on a PC or Media Player Classic is what I use on the PC.

    My movie bank is formatted to .m2ts to play over the hard wired network on the PS3.

    I use .m2ts because a lot of .mkv files are already at a video level of 4.1 and ac3 audio. With TSMuxer, I simply run it through that and output as a .m2ts and it's ready for the ps3.

    Really, the .m2ts is just a container. If the audio is DTS and if the video is an odd resolution, I run the .mkv files through MKV2VOB and output at a .m2ts file. That program works every time.

    My intent is to have the my movis on NAS hardwired in my house. I have 1TB for backup, and getting close to 2.5 TB's of movies now. Another 1TB is being added for movie storage.

    Knox
     
  7. odin24

    odin24 Regular member

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    I normally use my PS3 for playback (in Blu-ray format), external HDD or BD-RE. However I use MPC-HC with CCCP, FFDShow, and Haali Media splitter for testing on my PC... I do a lot of recoding. I believe all three are bundled in the CCCP package.

    The OPs solution is an excellent one as well (home network)... not sure about mkv2vob though.
     
    Last edited: Jan 30, 2009
  8. attar

    attar Senior member

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    I updated Haali Media Splitter and I can get playback in MPC - but the video is too jerky - maybe my PC is too slow.
     

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