I've been looking around for a real time HD-SDI audio embedded frame rate convertor to achieve 23.98fps to 25fps while keeping the audio in sync.
Do you guys know any cost effective box that can do just that?
How do you imagine your setup is?
You're speeding up video. So in order to make the conversion happen either the player should speed up or your recorder should speed down.
IOW, if it isn't build into the player/recorder, it ain't going to happen in an RT box, as it would need to spit out frames for 25 fps that have not yet arrived as the 23.976 source is not there yet...
(remember, there are no frames added!)
There is a pulldown sceme, add a field every 12 frames as well as the .1 % speed change, but that's concidered ugly...