[HELP] "Real" PAL<>NTSC framerate conversion with speed changing?

[Selur]

From what I understand:
What you want is a 'speed change' not a PAL<>NTSC conversion. You want to speed up / slow down the audio and change the playback frame rate of the video.

Note: I assume the source:

• is cfr and not vfr
  
• progressive, not telecine or interlaced
  

Haven't done this in years, but here is how this should be done:

25 -> 23.976:

• load source
  
• With video encoding:
  • set 'Base->Processing->Video' to 'the encoder of your choice' (configure the encoder in the corresponding tab)
    
  • enable 'Filtering->Speed Change->Change Speed'
    
  • set 'Filtering->Speed Change->Change Speed' to '23.976 fps'
    
• Without video encoding:
  • set 'Base->Processing'->Video to 'passthrough'
    
  • enable 'Muxing->Overwrite->Frame rate'
    
  • set 'Muxing->Overwrite->Frame rate' to '23.976'
    
• set 'Base->Processing->Audio' to 'custom'
  
• enable 'Audio->Base->Audio Encoding Options'
  
• configure your target format inside the 'Audio->Base->Audio Encoding Options->Encoder'-tab
  
• enable 'Audio->Base->Audio Encoding Options->Filtering->Speed change'
  
• set 'Audio->Base->Audio Encoding Options->Filtering->Speed change' to 'from 25.000 to 23.976' and depending on your liking enable 'adjust pitch'
  
• add the current audio settings for the current audio track to the AudioQueue (Audio->Base->Add current)
  
• set output file (Base->Output file)
  
• add current settings to the job queue (Base->Add to queue)
  
• start the job queue (Jobs->Queue->start)
  

23.976 -> 25:
Same as '25->23.976', but you need to replace '23.976' with '25.000' and '25.000' with '23.976'.

Cu Selur

Ps.: Both of these should be possible through mkvtoolnix by just adjusting the timecodes of the audio&video streams. Downside of this is a. target needs to be mkv b. no audio pitch control.