Resolving Synchronex audio
Moderator: Andreas Wideroe
-
jaxshooter
- Posts: 739
- Joined: Mon Jun 28, 2004 10:52 pm
- Real name: Marty Hamrick
- Location: Windsor, Ontario
- Contact:
Resolving Synchronex audio
Are the cassette recorders with the Synchronex system capable of self resolving?Is the sync jack (1/4 inch phono)capable of output as well as input?I understand how the system works,but as I understand,Synchronex used to resolve at their labs to mag stripe,but I'm not sure if they made their system capable of home resolving.Anyone familiar with this?I'm attempting to make a display of old A/V systems and I would like to have everything functional.
Hi!
I don´t know anything about this system, but when recorded to a tape during shooting, it only can be a 1000 Hz sync track recording or sth similar. So I guess, everytime you press your camera shutter, the tape registers one "beep" while one film frame is going to be advanced. The lab resolved this by recording the sound to the mag stripe, synchronizing the speed of tape deck and film.
You can double check this theory by listening to the tape, inserted in to a stereo deck. If you hear a sync signal (beep-beep-beep-beep...) from one of the speakers, your recorder had recorded it to one of the stereo chanels.
more likely, you will hear the signal when reversing the tape to the b side; so it had been recorded to track (3&)4 (on the b side) while the audio had been recorded to tracks 1&2 (a side).
This can be resolved at home, if you use my equippment, that is capable to control a projector exactly to a 1-beep-per-frame sync signal.
FIrst you have to see how to output the sync track for feeding it into the synchronizer at the same time you feed the sound into the recording input of the projector. If there is no output connector, you could attach (solder) an audio cable direcly to the sync track head. This head must be close to the audio head or integrated in the audio head.
My synchronizer is prepared to connect directly to a sound head, without any ampliyfiyer inbetween. Depending if there are interruptions in your sync track or if the scenes follow up seamlessly, you could record all the sound in perfect sync to the sound stripe of the projector.
Synchronizer required: P1008(-Q, -DDS)
Projector required: Braun Visacustic any model, or Bauer T610, T510, T525, T502 only with interface B1008S
or
Synchronizer P1008GS(-P, -Q, -DDS)
Projector: Elmo GS1200MO only.
Pedro
I don´t know anything about this system, but when recorded to a tape during shooting, it only can be a 1000 Hz sync track recording or sth similar. So I guess, everytime you press your camera shutter, the tape registers one "beep" while one film frame is going to be advanced. The lab resolved this by recording the sound to the mag stripe, synchronizing the speed of tape deck and film.
You can double check this theory by listening to the tape, inserted in to a stereo deck. If you hear a sync signal (beep-beep-beep-beep...) from one of the speakers, your recorder had recorded it to one of the stereo chanels.
more likely, you will hear the signal when reversing the tape to the b side; so it had been recorded to track (3&)4 (on the b side) while the audio had been recorded to tracks 1&2 (a side).
This can be resolved at home, if you use my equippment, that is capable to control a projector exactly to a 1-beep-per-frame sync signal.
FIrst you have to see how to output the sync track for feeding it into the synchronizer at the same time you feed the sound into the recording input of the projector. If there is no output connector, you could attach (solder) an audio cable direcly to the sync track head. This head must be close to the audio head or integrated in the audio head.
My synchronizer is prepared to connect directly to a sound head, without any ampliyfiyer inbetween. Depending if there are interruptions in your sync track or if the scenes follow up seamlessly, you could record all the sound in perfect sync to the sound stripe of the projector.
Synchronizer required: P1008(-Q, -DDS)
Projector required: Braun Visacustic any model, or Bauer T610, T510, T525, T502 only with interface B1008S
or
Synchronizer P1008GS(-P, -Q, -DDS)
Projector: Elmo GS1200MO only.
Pedro
-
jaxshooter
- Posts: 739
- Joined: Mon Jun 28, 2004 10:52 pm
- Real name: Marty Hamrick
- Location: Windsor, Ontario
- Contact:
Please note, that the ONLY projectors with DC motor and pitch control can be modified. The reason is, that whith this system, you did not apply any regulation between sound and film during shooting. You only logged the speed and running gehaviour of your camera.
So regulation must be applied in post, and my system regulates direclty the projecor speed, keeping the sound at a constant speed.
For regulating a projector, the projector must allow this.
Prepared, compatible models are the ones mentioned in my last post.
Others would be possible if they only have a´regulated DC motor.
The 1/F contact is part of this adaption. In my system, it is not a contact but an opto coupler that enclosures the shutter disk, outputting a 3/F signal. My synchronizers take this signal and divide it to the wanted 1/F for further internal e external use.
So check your projecor. Has it an ELECTRIC fps selector 18/24 or is it done by moving the belt? Has it an electric pitch control? (I need the value in OHMS of the potentiometer of the pitch control)
Pedro
So regulation must be applied in post, and my system regulates direclty the projecor speed, keeping the sound at a constant speed.
For regulating a projector, the projector must allow this.
Prepared, compatible models are the ones mentioned in my last post.
Others would be possible if they only have a´regulated DC motor.
The 1/F contact is part of this adaption. In my system, it is not a contact but an opto coupler that enclosures the shutter disk, outputting a 3/F signal. My synchronizers take this signal and divide it to the wanted 1/F for further internal e external use.
So check your projecor. Has it an ELECTRIC fps selector 18/24 or is it done by moving the belt? Has it an electric pitch control? (I need the value in OHMS of the potentiometer of the pitch control)
Pedro