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Jay Rose

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About Jay Rose

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    Boston US
  • Interested in Sound for Picture
  • About
    Sound designer and industry author. Member CAS and AES. Humor, articles, and studio info at www.dplay.com.

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  1. Jay Rose

    MIX and ISO Tracks levels

    ...which made it so painful when Sony decks were shipped with -20 dBFS nominal, matching +4 dBu on their analog jacks, so -12 dBFS (+16 dBu analog) became the peak level most US broadcasters would accept. Video CEs would argue with me that "yes, sending us DATs with -16 dBFS nominal or even -1 dBFS peak would be a cleaner track... but our guys would have to knock it down before they could lay it back on the DigiBeta master. So the net would be even worse, because of the additional math the playback deck would be adding. We've got better ways to measure loudness now, and deeper bit rates. But the old standard is still hanging on in ways... just like the deliberately slowed down QWERTY keyboard is still with us.
  2. Jay Rose

    MIX and ISO Tracks levels

    As a rough guide you can check this table of S/N ratios for different bit depths. The problem is when people use "signal to noise ratio" and have been trained in analog. Typically, analog s/n is specified to nominal, and headroom is on top of that. So a Nagra IV with 66 dB published s/n at 7.5 actually could record 70 dB cleanly, and maybe with 76 dB with acceptable distortion. The chart's "digital s/n" of 96 dB for 16 bits doesn't include any headroom. Depending on the device, one more dB will either give you horrible distortion, or be squashed. I've always used the convention of calling the digital measurement "dynamic range" rather than s/n, to avoid this confusion. (Of course the chart also doesn't consider electronic noise in the preamp or ADC. I can't think of any 24 bit recorder in common use today that actually gives you 144 dB dynamic range from the mic inputs.)
  3. Jay Rose

    The MCI JH 416, the other 416

    You mean they didn't mean these?
  4. Jay Rose

    The Last Kingdom

    Wilhelm (+1) at ~2:01:
  5. Jay Rose

    The MCI JH 416, the other 416

    For me, the breakthrough in the JH deck design was the snubber-less constant tension. Compute torque based on the reel rotation, which of course reflects the changing size of the tape pack. Brilliant!
  6. Jay Rose

    The MCI JH 416, the other 416

    I bought one of the first JH110s in New England. 4-track half inch, with accessory head stacks and guide rollers for 2-track and full track 1/4" (I modded the speed switch to give me 15/30 ips for the 1/8" high tracks, and 15 ips for the ful track). For the first three years after buying it from Audiotechniques, I got handmade Christmas cards from Jeep. From an operator's point of view -- particularly an operator whose previous big decks had been Ampex and Scully, and one who really rolled the tape around building up 4-track masters for broadcast -- the deck and electronics were brilliant! I installed it one afternoon, lined it up for house stock, and was doing a PBS animation track on it that night. My fingers naturally landed on the right buttons, punch-in and out were so seamless I could roll in music edits, and the thing moved almost as fast as I could think of what I wanted it to do. It was also easier to maintain than my "big iron" decks.
  7. Jay Rose

    The Last Kingdom

    You're right. I say, "Yearrghhhh!"
  8. Jay Rose

    World's largest green screen

    Fascinating NYTimes story about a city that's been built to support location and studio filmmaking. Even more so than anything in dear old LA. Lots of pictures. Even if you don't have time to read the article, glance at the lead photo.
  9. Jay Rose

    The Last Kingdom

    Maybe it's becoming the new Wilhelma Scream?
  10. Jay Rose

    Zoom F8 Beginners Question(s)

    Noiz2, thanks for resurrecting this topic. So I can say, "Jim, thanks for the shout-out". The book (www.greatsound.info) is a couple of years old but still doing very well. It's been adopted at a lot of schools, and I still get 1k or so hits a month on the password-protected tutorial files. (They're free if you've got either the hardcopy version or the e-book.) A few pieces of fast-changing info are missing (hey, you try to write a book that keeps up with changes in wireless mic regs and politics)... but basic workflow and operation haven't changed, and a lot of our techniques have been evolving for decades. The software and equipment sections were deliberately written to be long-lasting, and with the exception of the explosion of new Neural Network software -- which I could only hint at -- it's all still valid. If you can't afford the $50 Amazon charges for the print version, there are now plenty of copies in the used textbook stream. I don't get a royalty on used books, of course, but I'm glad to see the book being used.
  11. Jay Rose

    MIX and ISO Tracks levels

    Thanks for explaining that you meant dBFS. I was also scared when I though your were talking about 0 dB on a VU meter. I'd still worry a bit about going to 0 dBFS even with a limiter. Look-ahead limiters, which are common in post, can catch even a single sample that tries to go over... but you can give them 10 ms or even 20 ms latency -- plenty of time for a gentle attack -- and the host software can compensate when you use it. General query: is anybody using a look-ahead with a significant delay in production? Does the recorder compensate so the track still agrees with timecode?
  12. Jay Rose

    Sennheiser Scam

    I saw similar non-existent rebates from LG appliances, possibly being done by the same service company. They claimed the s/n was no good, then that the check was in the mail, then nothing... I copied and documented everything (including recording calls, which can be legal around here)... and also kept my appliance dealer in the loop. They've since stopped telling customers about the rebates. I don't believe the primary blame is with Sennheiser, Panasonic, or LG, which are all reputable companies... more likely with the US distributors who set this up, but didn't do enough checking into the company servicing them.
  13. Jay Rose

    Remote Audio Rainman and... your cat?

    Many of my cats* have loved licking supermarket plastic bags. Other plastic bags? "Meh" (or "meowh"). Turns out to be the thin coating of oil added at the factory so the bags would separate easily... apparently, it's got some marine components. Could a similar oil have been used to waterproof the Rainman? (* - Disclaimer: no more than two cats resident at any one time. But I've seen this over multiple kitty populations.)
  14. Fascinating NYT article this morning, https://nyti.ms/2yVqUS8 Researchers put beat-boxers into an MRI, and recorded the motions while they were making full drum-kit sounds vocally. Amazing mouth movements, some of which are like speech... and others, which don't seem to appear in any human language! Lessons for anyone interested in how the human instrument actually works. Which, after all, is what we spend most of our time documenting. ...the researchers apparently were looking for the same kind of information, to help develop language-independent speech recognition and synthesis.
  15. Jay Rose

    Proper Lav Mic Techniques

    I'm kind of disappointed that he didn't discuss choice of wireless. I prefer this one. But you can avoid the link entirely, if you place the camera mic where he recommends. That's why all the really good cameras have a built-in zoom mic. Added advantage: the camera won't see the mic at all!