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LDstudios

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  • Location
    Sydney, Australia
  • About
    Studio guy getting into location sound...
  • Interested in Sound for Picture
    Yes

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  1. Hi all, I am in a predicament. Our lovely DPA 4035 headset microphones are starting to fail - these are lovely, bulky headset microphone arms with DPA 4007 capsules on the end that get used in broadcast. We suspect it is just a worn-out cable at the top of the arm, but I can't seem to get it disassembled to repair or replace. DPA are no help. They no longer sell parts for the microphones, nor service them. Any thoughts on how I might get inside this thing? The capsule doesn't seem to unscrew at all. The tragedy is - if I can't get these things repaired, Rode headsets have been suggested as the replacements...
  2. Hi all, I need to wired up a bunch of Sennheiser HSP-4 headsets for 5-pin Lectrosonics. I have done plenty of 2-wire Sennheiser lavs, but when I popped the lid on these headsets I found three wires (gasp!). Red, Blue and Copper shield. It isn't something I am familiar with. Is it just a case of wiring to figure 11? (1 = copper, 3 = blue, 5 = red)?
  3. Yeah, it is still very much a thing today. It is usually the result of cascading recording channels into recording channels. It is an incredibly common thing to do in post for both workflow and QC reasons, with channels feeding print stems, and print stems feeding the print master. The easiest way to fix it in Pro Tools at least, is the turn off delay compensation on the print master by putting the channel into blue mode. It can become a whole lot more involved with more complex bussing structures though. The delay itself only occurs on the recorded audio. It would be interesting to hear from other people working in post about the subject. I have always been told that the sync pip/two pop is the presiding method of syncing a mix to picture during lay up. A function that could detect the pop, then align TC accordingly could be mighty handy!
  4. Looks great! Where did you source the little plastic enclosure from?
  5. How reliable are COS11s? I purchased a brand new pair and was a bit surprised to find a bunch of the black finish has scratched off after only 6 or 7 days of shooting. I know they have really become sound staples, but I've found them to be a little bit underwhelming all round.
  6. Hello braintrust, Does anyone know a source/manufacturer/model number for a Rycote style conn box enclosure for DIY'ing my own power/audio harnesses?
  7. Hey y'all. Thought you might be interested in this. Pro Sound Effects have a cheeky little giveaway in a couple of days. The prize is a 1yr sub to Pro Tools Ultimate, Izotope Production Production Suite, some stuff by Krotos, and $4000 worth of samples from PSE. No affiliation, but everyone deserves a copy of RX! I hug mine every night. Pro Sound Effect Giveaway
  8. Sonarworks implementation has taken a number of steps to alleviate the shortcomings that Jay has mentioned. You can scale the resulting EQ correction curve from 0 to 100%, and you can also apply your own curves again over the top to achieve your desired result. It also have multiple modes, from low latency through to phase linear. If you are mixing rather than tracking, you won't notice the extra latency of phase linear in any modern DAW. I found my mixes improved a tonne with Sonarworks, but it isn't a magic bullet. It doesn't replace acoustic treatment... it supplements it. It is one of many, many tools in your arsenal to manage listening and monitoring environments. I think the people most disappointed with it are those that treat it as a magic bullet, who think it replaces all of the other tools, or who think it replaces actually spending the time to learn your room and monitoring setup. It sucks that it lacks multichannel support. I have moved on from sonarworks and now very happily use Genelec SAM monitors with their GLM calibration.
  9. It seems like there is some card reader + card type specific thing going on. We had no luck at all with disk utility, but we were getting a lovely "this USB device is drawing more power than is available via USB" style message in OSX on all of the iMacs that we tried it with. The card reader that worked looked identical to the USB3 model, but was the previous USB2 version. It tops off a bizarre week with two SD 688 recorders using CF cards. Last week one recorder wouldn't format any CF card that I put in it. The menu became slow to respond, and after a bunch of hard restarts, power cycling and trying different cards the recorder froze on the media information screen and I had to wait until the internal backup battery drained so it would turn off. A similar thing started happening yesterday with the second SD 688 when we were swapping the 'troubled' CF card between it and card readers while trying to troubleshoot the issue. In the space of 20 minutes, the 688 was slowing down and not recognising the media. It makes me want to hug my 788 with its internal SSD drive.
  10. Hey everyone, Is it a known thing that CF cards used in SD 688's and SD 788's won't mount with a USB 3 CF card reader? That is the experience I had today after an email from the post department. The 32GB Sandisk extreme (it's on the approved media list) that I used yesterday with a Sound Devices 688 wouldn't mount. They tried multiple readers. Tried multiple cables. Tried multiple Macs. Tried multiple PCs. Nothing. Just as we were about to give up, I fished an identical CF card out of my bag that I last used with my Sound Devices 788... and it too wouldn't mount. The odds of two busted cards hanging out in the same case seem pretty remote. Turns out they both mount fine with a USB2 card reader... but don't work at all with a USB3 card reader.
  11. And it is just a thought. Take it for whatever it is or isn't worth. Thanks for the heads up on For The Love Of Music. I'll have to check it out!
  12. What about weaving in the historical aspects of cinema into the mixing philosophy? Cinema ran only a mono centre channel for decades, followed by a failed attempt at stereo, then onto LCR... with the rest being history. Perhaps just mono centre for the archival footage, and centre dialogue for the interviews with perhaps a bit of ambience/room tone mixed to L&R to give it a bit more of a modern spread? At the end of the day, it might be a particularly big ask to rely on the dialogue mix across the front three speakers to fill in any narrative or editorial holes.
  13. Most studios also operate with common ground and power. It’s impedance to ground that really matters. All it takes is a less than average IEC cable or cheap and nasty power board to throw spanner in the works. By lifting the shield at one end, you avoid multiple paths to ground, and no closed loops for stray ground current to congregate. While there is no 50 or 60hz AC buzzing around a bag, does a common ground necessarily mean all devices in the bag see it at the same impedance? Sound bags are exposed to the elements quite a bit. I might do some measurements in the coming days, and try and find out if ground wiring configurations do have any impact on the audio noise floor of a sound bag.
  14. From what I understand there is always something to ground, even in DC systems. It all has to do with ground reference - the common point which voltages in the system are measured from. It is why you can have a +9v or -9v or +/-4.5 volt circuit powered off a simple 9v battery. I wasn’t particularly succinct in my first post. The power aspects of the system seem pretty straight forward. But what about the audio interconnects? In the studio, the usual convention is to leave the shield of your audio interconnects floating at one end to prevent multiple paths to the ground reference. That is why studios often run a single “star” grounding system. I think it has less to do with a physical ground connection, and more to do with how each device references that common ground reference point. When you have something in your bag or cart like a Lectrosonics quadpack or octopack, suddenly there is the possibility of 9 paths to ground when connecting what essentially is one device, to another. At least in theory...
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