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<blockquote data-quote="tourettes" data-source="post: 688191" data-attributes="member: 10858">Re: AW: MediaPortal Audio renderer - better video playback qualityActually it is inverse telecine what we are seeing. In short: movies are shot in 24 or 23.976 fps and the NTSC is 29.97 fps&nbsp; / 59.94 Hz. Telecine is used to generate the NTSC material out of the film marial (in Europe we have the PAL speedup 23.976 to 25 done for DVDs). So the codec is actually doing the IVTC and recostructing the original 23.976 / 24 fps material from the 29.97 fps.&nbsp; <a href="http://wi-fizzle.com/howtos/ivtc_explained.php" target="_blank">Wi-Fizzle.com | IVTC Explained</a>1) I have no clue how MP / MediaInfo should detect the IVTC that can be done. It cannot be done for non-film sourced 29.97 fps material. Maybe there is some flag in the stream?2) I have no clue why having 24 Hz as refresh rate will cause any drifting.</blockquote>

[QUOTE="tourettes, post: 688191, member: 10858"] [b]Re: AW: MediaPortal Audio renderer - better video playback quality[/b] Actually it is inverse telecine what we are seeing. In short: movies are shot in 24 or 23.976 fps and the NTSC is 29.97 fps / 59.94 Hz. Telecine is used to generate the NTSC material out of the film marial (in Europe we have the PAL speedup 23.976 to 25 done for DVDs). So the codec is actually doing the IVTC and recostructing the original 23.976 / 24 fps material from the 29.97 fps. [url=http://wi-fizzle.com/howtos/ivtc_explained.php]Wi-Fizzle.com | IVTC Explained[/url] 1) I have no clue how MP / MediaInfo should detect the IVTC that can be done. It cannot be done for non-film sourced 29.97 fps material. Maybe there is some flag in the stream? 2) I have no clue why having 24 Hz as refresh rate will cause any drifting. [/QUOTE]

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