- published: 08 Oct 2015
- views: 7688
In video technology, 24p refers to a video format that operates at 24 frames per second (typically, 23.976 frames/s when using equipment based on NTSC frame rates) frame rate with progressive scanning (not interlaced). Originally, 24p was used in the non-linear editing of film-originated material. Today, 24p formats are being increasingly used for aesthetic reasons in image acquisition, delivering film-like motion characteristics. Some vendors advertise 24p products as a cheaper alternative to film acquisition.
When working entirely within the digital non-linear domain, 24p material is more easily handled than material of higher frame rates. 24p material requires care when it is processed using equipment designed for standard video frame rates.
There are two common workflows for processing 24p material using video equipment, one using PAL frame rates, and the other using NTSC frame rates. Of these two, the PAL route is the simpler, but each has its own complications.
24p material can be converted to the PAL format with the same methods used to convert film to PAL. The most popular method is to speed up the material by 25/24 (4%). Each 24p frame will take the place of two 50i fields. This method incurs no motion artifacts other than the slightly increased speed, which is typically not noticeable. As for audio, the ~4% increase in speed raises the pitch by 0.7 of a semitone, which again typically is not noticed. Sometimes the audio is pitch shifted to restore the original pitch.
Donna yoru mo ake ru kyou ga umare teyuku
No one mita kotonai brand new morning
Sotto namida fuite I will arui te iku
Kie nai negai wo utsusu ano silent sky
Tooku tatte tadori tsuke rebaii
Ikisaki ha jibun ga kime rukara
Brave kono mune niitsudemo
Ima hokore ruyouni
Just osore zuni iki teku
Yume dakewo shinji te
Donna sukima dattara you and I ume raretano
No more wakaranaikedo yes life goes on
Kitto kizutsu itemo we can doa wo akete te sorezoreno michi sagasu mou I
Won't cry
Sugi ta kioku itsuka kotae ninaru
Sayonaramohajimarini kawa rukara
Brave kinou yorimo takaku
Mottosono teno bashite
Just negai kanae teyuku
Yuru ginai kokoro de
Brave kono mune niitsudemo
Ima hokore ruyouni
Just furimuka zu iki teku
Yume dakewo mitsu mete
Brave kinou yorimo takaku
Mottosono teno bashite
Just negai kanae teyuku