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Rec Start Stop trigger from SDI spigot
Hello all,
I am intrigued by the prospect of using a Sound Devices 788T as my Sound recording device.
Since the dawn of Camcorders, we have struggled to get more audio channels onto the recorded media to optimize sound post as well as not having a cable to get in the way from the Sound Man to the camera.
With my HPX3000 I have figured that I might be able to get four discreet channels in via the wireless port ( with the december firmware upgrade ) in combination with the camera mike in plug on the front.
Just as I got enthused about that I looked at the expense and the weight – right about the time the Sound Devices 788T arrived onto the market.
I figured – why I would spend money on links etc and the associated weight gain for the 3000 when really this is a Sound Department issue.
Already some sound people are getting the 788T Sound Recorders as the price is very reasonable
Great – up to eight discreet tracks, sync the 788T recorder up to the camera using T/C wirelessly and whammo great double system sound. Scratch track to the camera for the editor and all is well.
BUT I need to tell the sound man when to roll and cut.
I investigated using T/C into a radio mike back to the 788T to start and stop it. Worked well BUT you can’t use time of day because T/C starting and stopping is the trigger.
My favourite aspect of the HPX3000 is using time of day so as my shoots can be organised by date shot and time of Day.
I keep reading about this trigger pulse that occurs when rolling and cutting some of Panasonics Kit.
I guess I was using it to roll the Frame Rate Converter from our Varicam with this.
I read below in the 10 bit Varicam out put spigot discussion that this “pulse” can be used to trigger some off board recording devices.
What is this pulse and can I harness it to be sent wirelessly to the 788T to roll and stop it.
This would give me as many tracks as people the production needs to radio mike up. Or one of those holophone surround mikes can be recorded with two radios mikes and a pole – with very little loading down the 3000 – already a very heavy camera.
Maybe there’s a device around that does this and I’ve not seen it.
-Thinking caps on….. 🙂
Best
Tim Maloney
Axis Films Australia -
2 Replies
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Personally I see little utility to recording with a sound devices recorder if you’re a one man band. It excels best when you have a full crew i.e. someone to hold a boom mic, someone to ride levels on the Sound devices. If it’s all sitting in your backpack and you’re running and gunning you’ll do just as well if not even better with a good shotgun mic and the onboard audio. Having the gear doesn’t give you any better sound if no one is around to use it.
That said, I’ve not seen any sort of device that triggers the Sound Devices from a Panasonic camera. Probably because no one has though to make one for my very same reasoning- too little demand.
Noah
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Hi Noah,
Not intending to be one man band in fact I insist on using at least a Sound Guy and assistant where possible. Don’t know where that came from??
My dilemma is I want to roll the 788T when I want too IE when I see a usable shot and I don’t want to have to tell sound to roll and I don’t want to carry links!!!!
I see massive use for such a device as IT sound becomes popular as will IT pictures.
Any takers??
Best
Tim
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