Ok, I don't have my Nizo 801 yet, but it's on its way. I have been trying to make heads and tails of the issue of audio synching with super 8mm and I'm getting kind of confused. Ok..
Pilot tone synching. From what I've read, the Nizo 801 has a builtin pilot tone at 60 hz for american models, and 50 hz for european models. The model I bought is being shipped from Germany so naturally it's euro. Now if I wanted to hook it up to an analog tape recorder like a Nagra(fat chance) or a Sony walkman pro(more likely) would is stay in sync while I'm recording at 24 fps? I'm kind of confused with the relation between frame rate and the pilot tone hz. I understand there's supposed to some sort of 25 fps/50hz correlation, but this camera only does 24fps. So how does this workout? Will I need a recording device that is modified to synch to 50hz?
Recording digitally. Say I went with DAT or just recording on a laptop with a pro audio device attached. The DAT is pretty much going to record tightly synched and so will the laptop with good pro audio software. So nothing to worry about there right? The camera on the other hand, I'm to assume that even though its set to shoot at 24fps it will not be completely accurate. If I do a telecine transfer at 24fps(ala workprinter) and put the results in my computer and load up the audio files, what would the resulting synch be like? Naturally the 24 fps would be converted to 23.976 and I would slow the audio down by a similiar small percentage. But doesnt the fps rate have to be converted to 29.976 fps to play back properly? How would that interact with the audio? Would I absolutely have to have the camera crystal synched to ensure everything will fit together without much time drift?
Thanks for any help.
Matt
Nizo 801, audio synching CONFUSION
Moderator: Andreas Wideroe
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Guest
Hi Mat,
there are a lot of double system sound syncing systems around, and certainly some of them applyed direct syncing during shooting.
But mostly, there is done no syncing at all during shooting.
The only good of the pilot tone is, that is will be recorded to a free sound track of your recorder (tape or other), leaving the tape and the camera run as they like, without special regulation or syncing. Only afterwards, during editing, the recorded pilot tone gives you the relation between camera speed and sound. The absolute frequency of the pilot tone changes a small amount, depending on the actual camera speed during recording, and the tape speed during registrating the pilot tone.
When bringing film and audio together again (in the projector or a flat editing table), the tape´s speed (or the film´s speed in other systems) can be regulated according to the registrated pilot tone and you have it synced.
The Nizo prof camera, besides producing a pilot tone, it also produces one 1000 Hz beep per frame. Modern digital synchronizing systems are mostly based on that 1000 Hz beeps and not on pilot tone (what is more historical). But the basics are almost the same: You record the beeps during shooting, having a speed referernce track on your tape plus and information what audio belongs to a sound scene. During editing, it is synced again to the film, but not during shooting.
Pedro
there are a lot of double system sound syncing systems around, and certainly some of them applyed direct syncing during shooting.
But mostly, there is done no syncing at all during shooting.
The only good of the pilot tone is, that is will be recorded to a free sound track of your recorder (tape or other), leaving the tape and the camera run as they like, without special regulation or syncing. Only afterwards, during editing, the recorded pilot tone gives you the relation between camera speed and sound. The absolute frequency of the pilot tone changes a small amount, depending on the actual camera speed during recording, and the tape speed during registrating the pilot tone.
When bringing film and audio together again (in the projector or a flat editing table), the tape´s speed (or the film´s speed in other systems) can be regulated according to the registrated pilot tone and you have it synced.
The Nizo prof camera, besides producing a pilot tone, it also produces one 1000 Hz beep per frame. Modern digital synchronizing systems are mostly based on that 1000 Hz beeps and not on pilot tone (what is more historical). But the basics are almost the same: You record the beeps during shooting, having a speed referernce track on your tape plus and information what audio belongs to a sound scene. During editing, it is synced again to the film, but not during shooting.
Pedro