Simon Paine Posted October 16, 2012 Report Share Posted October 16, 2012 Has anyone tried this unit ? http://www.datavideo...udio-delay-box/ It's 12V DC powered, without the need for special plug (like the behringer) It's two channel (but they call it stereo so I bet you couldn't set a different delay on each channel) and the max delay time is 700 msec. Also rackmountable (you could fit two units side by side to fill a rack space. Quote Link to comment Share on other sites More sharing options...
Jeff Wexler Posted October 16, 2012 Report Share Posted October 16, 2012 I actually had an order in for this AD-100 unit, seemed to be the best --- 12 vdc, proper connectors, not too big, good display. I hated using the Behringer unit on the last movie, AC only, quirky setup, runs very hot, etc. I did not get the AD-100 but instead opted for the much simpler (and cheaper) less flexible $80. unit from AV Toolbox (available from B&H and others). The AV Toolbox unit requires 5 vdc so I had to build a little DC to DC box for it and make up interconnect cables for the RCA only I/O, so all in all it was more work to try and make this a more professional piece of equipment. Even though the AV Toolbox unit works fine I wish I had gotten the AD-100. AV Toolbox Lip-Sync corrector Quote Link to comment Share on other sites More sharing options...
Rainier Davenport Posted October 16, 2012 Author Report Share Posted October 16, 2012 Kramer makes video equipment. The unit I have is analog with Phoenix connectors. It is small and lightweight. The 12v connector is the standard coaxial 2.1mm. DH Any chance you could provide a model number? When I looked at the Kramer website all I found was the digital delays I mentioned previously. Quote Link to comment Share on other sites More sharing options...
Rainier Davenport Posted October 16, 2012 Author Report Share Posted October 16, 2012 I actually had an order in for this AD-100 unit, seemed to be the best --- 12 vdc, proper connectors, not too big, good display. I hated using the Behringer unit on the last movie, AC only, quirky setup, runs very hot, etc. I did not get the AD-100 but instead opted for the much simpler (and cheaper) less flexible $80. unit from AV Toolbox (available from B&H and others). The AV Toolbox unit requires 5 vdc so I had to build a little DC to DC box for it and make up interconnect cables for the RCA only I/O, so all in all it was more work to try and make this a more professional piece of equipment. Even though the AV Toolbox unit works fine I wish I had gotten the AD-100. AV Toolbox Lip-Sync corrector This looks like the ideal solution for bag work, which is the problem I am looking to solve. It has the quirky 5 volt DC input and RCA input/output but I can see that working and your experience suggests it does work. Thanks Jeff (and others). Quote Link to comment Share on other sites More sharing options...
Marc Wielage Posted October 17, 2012 Report Share Posted October 17, 2012 The DataVideo is pricey ($422), but it's certainly a lot more polished, has XLRs, and handles 12VDC. Plus the digital screen adds much more finesse to selecting the precise millisecond delay required. Quote Link to comment Share on other sites More sharing options...
Jeff Wexler Posted October 17, 2012 Report Share Posted October 17, 2012 The DataVideo is pricey ($422), but it's certainly a lot more polished, has XLRs, and handles 12VDC. Plus the digital screen adds much more finesse to selecting the precise millisecond delay required. I will add that it was the price of the DataVideo AD-100 that ultimately made me abandon it (though I really appreciated the level of professional execution as Marc points out). Quote Link to comment Share on other sites More sharing options...
cmgoodin Posted October 17, 2012 Report Share Posted October 17, 2012 Here's an idea for the people at Comtek or Lectro to consider. How about an audio receiver with Near Field Com chip that would detect when you are near the monitor and drop into delay mode. When you wandered away from the monitor it would return to normal no delay. Just put a NFC transmitter on top of the delayed Video Monitors and let the people wander where they want. Quote Link to comment Share on other sites More sharing options...
Philip Perkins Posted October 17, 2012 Report Share Posted October 17, 2012 This looks like the ideal solution for bag work, which is the problem I am looking to solve. It has the quirky 5 volt DC input and RCA input/output but I can see that working and your experience suggests it does work. Thanks Jeff (and others). This unit is from the same series as the little Gefen DACs I use on the 2nd (AES) output of the 744. You can make a 4 AA battery pack yourself that will work fine, esp if you use Lithiums (it does eat some power). My minor beef with this unit is that it isn't very precise, the increments are pretty big. For cart use (esp if AC is avail) I still think an old MI type delay is a better choice--if only because you can dial in the delay by milleseconds, then name and save the patch. It's been a great convenience to be able to call up "23.98 1 fr" then "23.98 2 fr" etc etc in quick order and see what works best fast. philp Quote Link to comment Share on other sites More sharing options...
Marc Wielage Posted October 20, 2012 Report Share Posted October 20, 2012 Yes, at 24fps, the general rule of thumb is 33ms per frame. We typically got 5 frames of delay with HD -> SD boxes, but I think what we typically see now on sets with Epics and/or Alexas is maybe 3 frames (about 100ms). Not sure what the toy cameras like the Canon 7D do. I'm on a project like that now and offered to dial in some delay, but the director shrugged and said, "eh, I'm used to it." Quote Link to comment Share on other sites More sharing options...
Brian Liston Posted October 22, 2012 Report Share Posted October 22, 2012 But then you could put that luscious chorus and reverb in with the delay. Mmm, everyone on on set would be so happy. Guess I'll be adding a Shark to the kit (I suppose an old Lexicon MPX1 might be overkill? : ) ~tt Quote Link to comment Share on other sites More sharing options...
Jesse Parker Posted November 27, 2012 Report Share Posted November 27, 2012 I made this chart for the audio input delay settings in the PIX recorders but I feel it's relevant in the thread. If you know the frame rate of the camera's output and the amount of delay in frames, this table tells how much delay will need to be applied to the audio to achieve sync. Quote Link to comment Share on other sites More sharing options...
macruth Posted November 3, 2014 Report Share Posted November 3, 2014 With the 3D rigs we're using (3D camera = 3 frames, 3D processor = 8 frames, DIT = 1 frame, Video Asst. = 2 frames, 3D monitor = 4 frames) we've tested an 18 frame delay which we need to match on the Comteks, I've got 10 frames delay available on the 788T (using and have the Behringer Shark inline lined up for 10 frames (416.6 ms), to eye it all works, but I'd obviously prefer a DC powered unit ala AD-100 mentioned above, Quote Link to comment Share on other sites More sharing options...
macruth Posted November 3, 2014 Report Share Posted November 3, 2014 Do any of the "Usual Suspects" deal in these AD-100 units? I'd prefer to deal with one of our own... I could not find any "Usual Suspects" using the dealer locator on the Datavideo site... Quote Link to comment Share on other sites More sharing options...
Zach Noblitt Posted November 4, 2014 Report Share Posted November 4, 2014 We can get the AD-100 here at Trew! Quote Link to comment Share on other sites More sharing options...
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