Mp4 Converter settings

• Impact Player

  4 Nov 06, 22:42

  What is the standard quality settings for encoding video files for Ipod?
• chanff8

  4 Nov 06, 23:19

  AAC Stereo (L,R), 22.050kHz/44.100kHz, 128kbps
  H.264 Decoder, 320x240, Millions, 768 Kbps
  
  Framerate (Frames per second, FPS) is usually 25.
  
  These are the standard settings. You can increase resolution up till 640x480, FPS up till 30 and bitrate up till 2.5mbps according to Apple's site
• abao

  5 Nov 06, 09:16

  mod, you forgot to mention its AAC-LC audio and its up to 160kbs, 48000Hz
  
  IPod H.264 only support H.264 Profile Level 1.3 or 3 (for 640x480)
  Which means little or none of the more powerful compression techniques will be used.
  
  They also support Simple Profile of DivX, XviD and other MPEG-4 codecs.
  
  

  From http://www.apple.com/ipod/specs.html
  Video formats supported: H.264 video, up to 1.5 Mbps, 640 by 480 pixels, 30 frames per sec., Low-Complexity version of the H.264 Baseline Profile with AAC-LC audio up to 160 Kbps, 48 kHz, stereo audio in .m4v, .mp4, and .mov file formats;
  
  H.264 video, up to 768 Kbps, 320 by 240 pixels, 30 frames per sec., Baseline Profile up to Level 1.3 with AAC-LC audio up to 160 Kbps, 48 kHz, stereo audio in .m4v, .mp4, and .mov file formats;
  
  MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per sec., Simple Profile with AAC-LC audio up to 160 Kbps, 48 kHz, stereo audio in .m4v, .mp4, and .mov file formats
  

• Impact Player

  5 Nov 06, 12:36

  Really?
  
  i did use the following settings above and something funny happened to my converted videos,
  
  the video has an estimated 1.5 secs and below delay against the audio instead of them animating together if you know what i mean.
  
  meaning the mouth speech is slower than the voice
  
  So where did i go wrong?
• abao

  5 Nov 06, 19:03

  hmm...so what settings did you use, what codec did you use to compress and what application did you use?
• Impact Player

  6 Nov 06, 07:30

  Originally posted by abao:

  hmm...so what settings did you use, what codec did you use to compress and what application did you use?

  application im using is Jodix Ipod Video Converter and Videora Ipod Video
  Converter
  
  Codec wise for opening the video source is ffdshow video decoder since all my vids are in AVI format
• ditzy

  6 Nov 06, 08:15

  Originally posted by Impact Player:

  Really?
  
  i did use the following settings above and something funny happened to my converted videos,
  
  the video has an estimated 1.5 secs and below delay against the audio instead of them animating together if you know what i mean.
  
  meaning the mouth speech is slower than the voice
  
  So where did i go wrong?

  that means its your input, not your converter settings that gives u the lag 1.5s is some serious lag, i rarely get anything above 0.52s
• abao

  6 Nov 06, 18:20

  hmm...wonder what can be the cause of it...
  
  anyways...i'm making a Ipod .mp4 file later for testing purposes on meGUI
  
  can you help me see whether i'll work? coz i dun have an Ipod.
• Impact Player

  6 Nov 06, 18:21

  so how do i "fix" my input video
• abao

  6 Nov 06, 19:08

  you may want to try encoding video and audio seperately before merging them together.
  
  would it be alright if i send a video file to you and u help me see whether i'll play on ipod?
• ditzy

  6 Nov 06, 19:17

  Originally posted by Impact Player:

  so how do i "fix" my input video

  When I watch movies on my hp, using divx player, there will be a slight lag, max 0.52s. But the player has a built in preroll function, so you can specify the delay when the audio starts playing, so the lag merges and artificially synchronises. But I doubt the ipod player has that.
• abao

  6 Nov 06, 19:42

  ditzy, its not that.
  
  His problem is, his encoded video suffers from sync problems. meaning the source works fine.
  
  Possibly its because his source audio is in vbr.
  
  Thats why I suggest him to encode his audio and video seperately before muxing them back together.