The audio was using a different means of transmission and a different radio frequency.

Hi, in television you can shoot a tape or a live image at 6 frames per second, but transform that for a live TV screen showing to be viewed at 30 frames per second. This is done electronically, by freezing every frame for about 1/5 of a second. So, what you would be seeing with video on a TV screen is 6 frames per second, spread out over one second. Each frame would be held on the screen for 1/5 of a second. 6 of these single consecutive frames would = 1 second of video shown on the TV screen, with each one being on the screen for 1/5 of a second before the change to the next one.

For film, NASA often shot their 16 mm film at less than the standard 24 fps, so they could get more time in, without having to take a lot of big film reels with them. To show this film on TV, they would have each frame optically printed several times. For example, if the film was shot at 6 frames per second, during the printing process, each frame would be printed 4 times, using an optical printer rather than a contact printer. A contact printer has no pull-down claw, but an optical printer has two of them. One for the original film and another for the raw film being printed to.

Here is a video from Apollo 11 TV video (actually it seems to be a kinescope, since there are white dust spots on some of the frames). Note the jumpy jerky action of the astronaut. That’s because the photography was made at a slower frame-per-second rate than the play-back rate:

http://history.nasa.gov/alsj/a11/a11v.1101330.rm

If that link doesn't work, try this one and scroll down to:

Journal Text: 110:13:30 RealVideo Clip: (2 minutes 52 seconds).

http://history.nasa.gov/alsj/a11/video11.html#Mobility