Filme fora de sincronia divx ao jogar no player do carro

Question

O que causa a falta de sincronização ao reproduzir filmes DivX no player portátil / carro? Eu acho que tem algo a ver com a forma como os filmes são codificados, então aqui está a comparação do MediaInfo de ambos os arquivos de filmes.

============================================================================
Video
----------------------------------------------------------------------------
    Items             | OutOfSync.avi            | Sync.avi         
----------------------------------------------------------------------------
  Format              | MPEG-4 Visual            | MPEG-4 Visual
  Format profile      | Advanced Simple@L5       | Advanced Simple@L5
  Format settings     |                          |
     BVOP             | Yes                      | Yes
     QPel             | No                       | No
     GMC              | No warppoints            | No warppoints
     Matrix           | Default (H.263)          | Default (H.263)
  Codec ID            | XVID                     | XVID
  Codec ID/Hint       | XviD                     | XviD
  Duration            | 21mn 5s                  | 21mn 6s
  Bit rate            | 1 016 Kbps               | 1 017 Kbps
  Width               | 624 pixels               | 624 pixels
  Height              | 352 pixels               | 352 pixels
  Display ratio       | 16:09                    | 16:09
  Frame rate          | 23.976 fps               | 23.976 fps
  Color space         | YUV                      | YUV
  Chroma subsampling  | 4:02:00                  | 4:02:00
  Bit depth           | 8 bits                   | 8 bits
  Scan type           | Progressive              | Progressive
  Bits/(Pixel*Frame)  | 0.193                    | 0.193
  Stream size         | 153 MiB (88%)            | 154 MiB (88%)
  Writing library     | XviD 1.2.1               | XviD 1.2.1 
---------------------------------------------------------------------------- 
Audio  
----------------------------------------------------------------------------
    Items             |    OutOfSync.avi         |  Sync.avi         
----------------------------------------------------------------------------
  Format              | MPEG Audio               | MPEG Audio
     version          | Version 1                | Version 1
     profile          | Layer 3                  | Layer 3
  Mode                | Joint stereo             | Joint stereo
  Mode extension      | MS Stereo                | MS Stereo
  Codec ID            | 55                       | 55
  Codec ID/Hint       | MP3                      | MP3
  Duration            | 21mn 5s                  | 21mn 6s
  Bit rate mode       | Variable                 | Variable
  Bit rate            | 128 Kbps                 | 128 Kbps
  Channel(s)          | 2 channels               | 2 channels
  Sampling rate       | 48.0 KHz                 | 48.0 KHz
  Bit depth           | 16 bits                  | 16 bits
  Stream size         | 19.7 MiB (11%)           | 19.6 MiB (11%)
  Alignment           | Aligned on interleaves   | Aligned on interleaves
  Interleave duration | 24 ms (0.58 video frame) | 24 ms (0.58 video frame)
  Writing library     | LAME3.92                 | LAME3.92
  Encoding settings   | -m j -V 4 -q 2 -lowpass  | -m j -V 4 -q 2 -lowpass 
                      | 17.5 --abr               | 17.5 --abr
============================================================================

Noto que a única diferença nesses dois arquivos é Taxa de bits de vídeo (1016 e 1017), Tamanho do fluxo de vídeo (153 Mib e 154 Mib) e < strong> Tamanho do Fluxo de Áudio (19,7 MiB e 19,6 MiB). Será que essas coisas são suficientes para reproduzir vídeos sincronizados no player do carro? Ambos os arquivos são reproduzidos perfeitamente no meu laptop. Existe alguma ferramenta que eu possa usar para alterar o arquivo de sincronização?

    

Answer 1

De Por que o seu sistema tem áudio / vídeo problemas de sincronização? , as seguintes razões podem causar problemas de sincronização ao capturar vídeo:

1. Is your hard drive fast enough?
2. Are you capturing to your primary hard drive?
3. Do you have a VIA chipset?
4. Are you sure your system is configured correctly?
5. Are you viewing the final mpeg with Windows Media Player?
6. Do you have an onboard soundcard?
7. How reliable is your source?

Para corrigir problemas de sincronização, a partir de Áudio Divx fora de sincronia. ajuda! :

If the difference between audio and video is constant throughout the video

• Load the file into VirtualDub, VirtualDubMod, or NanDub.
• Set BOTH "Video"(VirtualDub, VirtualDubMod and NanDub) and "Audio" (VirtualDub and NanDub -
  VirtualDubMOD>"Streams>"Stream list") to "Direct Stream Copy".
• From the "Audio" dropdown menu, select "Interleaving" (For VirtualDubMOD, rightclick on the listed audiostream and then select "Interleaving")
• Under "Audio skew correction", set an appropriate number of milliseconds positive in the box labeled "Delay audio track by"
• Save with a new file-name

If the difference increases as the movie plays

• From under the "Video" dropdown menu, select "Framerate" - and select "Change so video and audio durations match"
• Save with a new file-name

keep in mind 1000 milliseconds is 1 sec, so use this as an idea of what value to enter....i find a lot of times 300 seems to be the magic