gkuenning wrote in post #11143662
OK, this confuses me even more. I have known for a while that American TV is 29.97 fps instead of the nominal 30 fps, and that the difference can cause drifting problems if (for example) you play video at 30 fps while syncing to a soundtrack recorded for 29.97. I hadn't known that movies are 23.976 instead of 24. (And I don't know the precise Kiwi frame rate; please forgive my Yankee naivete.)
These are your best bets (links below as its quite complex), basically a lot of stems from the dark ages and the worst part living here is we don't often get real PAL stuff but converted NTSC content which is worse than both natively. So people always say yay PAL is better (which in some ways it is) but the trick is most TV and almost all movies are American 23.9 so if we watch something that has been converted we are being shafted to put it lightly. Conversion results in sound speedup, usually detail loss and usually added stuttering.
Due to digital cinema the sound linkage isn't really a problem anymore either, you can get almost anything done where before as you say the sound was on the edge of the film in an analog form and had to run in sync but even later on the sound on the film edge was digital on the reel and decoded on separate processors (SDDS, DD, DTS etc).
In January 1950, the Committee was reconstituted to standardize color television. In December 1953, it unanimously approved what is now called the NTSC color television standard (later defined as RS-170a). The "compatible color" standard retained full backward compatibility with existing black-and-white television sets. Color information was added to the black-and-white image by adding a color subcarrier of 4.5 × 455/572 MHz (approximately 3.58 MHz) to the video signal. To reduce the visibility of interference between the chrominance signal and FM sound carrier required a slight reduction of the frame rate from 30 frames per second to approximately 29.97 frames per second, and changing the line frequency from 15,750 Hz to 15,734.26 Hz.
It looks like in future we might all be watching 60p, some sports in the US are already broadcast with this standard and it looks lovely smooth especially for sports. The other issue you have is FPS = bandwidth which is generally also limited in some shape or form or costs involved at the minimum.