Recording gunfire
- ThunderFaceWizardHead
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Recording gunfire
I want to record some gunfire for sampling and wondering if anyone has any experience and/ or suggestions in this area. All I have at my disposal are a laptop or minidisc with the 1/8 stereo inputs. Would I be better off buying a cheap ass mic, or using an impedance transformer and a 1/4 to 1/8 inch step down? Mic placement also has me wondering, could I possibly damage a mic? I don't plan on duct taping a ribbon mic to the barrel or anything, but is it feasible that a 57 placed a few feet away could be damaged?
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- JGriffin
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When I've recorded gunshots I've used a VP88 stereo mic, and a Radio Shack Highball 2 (I tend to use those for sfx recordings where the mic might get destroyed or, um, confiscated by the local gendarmes). Both mics survived. I did some close-up stuff but generally miked from a few feet away. Likely a 57 will be fine.
"Jeweller, you've failed. Jeweller."
"Lots of people are nostalgic for analog. I suspect they're people who never had to work with it." ? Brian Eno
All the DWLB music is at http://dwlb.bandcamp.com/
"Lots of people are nostalgic for analog. I suspect they're people who never had to work with it." ? Brian Eno
All the DWLB music is at http://dwlb.bandcamp.com/
yea your 57 is not gonna get destroyed by it (I think)... but it might not capture the transient like you might want... being a shockwave it's got a really sharp transient. Also it becomes a classical wave pretty quick (something I'm giving a talk on next month http://www.maesc.org/) so you don't want to get too far away from it.. but you also don't want to get too close to it so that you clip your mic/preamp. I just did a quick calculation and you need to be less than about 18 meters to capture the shock up to the range of human hearing (40khz) but it depends on the SPL of the gunshot....
Bob Heil reports that his large-diaphragm PR-40 (approx $400 US) is perfect for this. During some field recording for one of the latest war movie blockbusters, the recording crew duct-taped a PR-40 to the barrel of some large-caliber rifles and were (figuratively) blown away by the sound.
The PR-40 can take a direct SPL of 140db without distorting. That's loud.
Good luck!
The PR-40 can take a direct SPL of 140db without distorting. That's loud.
Good luck!
I just found this chart, it may be helpful http://www.freehearingtest.com/hia_gunfirenoise.shtml
Years ago at audio school we had a foley guy come in and talk about different sounds used in film. He said one of the favorite "gunshot" sounds that was used was a hollow core door being slammed......easy on the mics, as real gunfire can easily clip a mic signal, giving you the popgun effect.
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- inverseroom
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Joe, when did you have the opportunity to record gunfire?dwlb wrote:When I've recorded gunshots I've used a VP88 stereo mic, and a Radio Shack Highball 2 (I tend to use those for sfx recordings where the mic might get destroyed or, um, confiscated by the local gendarmes). Both mics survived. I did some close-up stuff but generally miked from a few feet away. Likely a 57 will be fine.
- ThunderFaceWizardHead
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I think I've found my answer.cozrulz wrote:What if you set a cheap mic up as a target? Take a couple shots and miss it, but the final one shoot the mic. That could sound very cool. At least in my head it does.
Maybe I'll wire some old speakers I've got lying around to act as target mics as well. They might survive more shots, and should be able to handle quite a few db's.
- JGriffin
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A few years ago, working on some of our sound effects CDs, my business partners and I went up to Wisconsin and shot off a variety of weapons (with professional supervision; I can't stress that enough). We also recorded a bunch of cannon fire and late-nineteenth-century rifles with the help of some Civil War re-enactors. That's all powder and blanks, and the cannons were shooting quarter- and half-loads, but still mighty loud.inverseroom wrote:Joe, when did you have the opportunity to record gunfire?
Truthfully, I think the Civil War stuff came out better than the modern stuff, partly 'cos I had more experience by that time.
Side note: I am generally okay with recording location stuff to DAT, but having heard side-by-side comparisons of gunfire shot to DAT and Nagra, I'd have loved to have an analog deck with me for some of that stuff.
"Jeweller, you've failed. Jeweller."
"Lots of people are nostalgic for analog. I suspect they're people who never had to work with it." ? Brian Eno
All the DWLB music is at http://dwlb.bandcamp.com/
"Lots of people are nostalgic for analog. I suspect they're people who never had to work with it." ? Brian Eno
All the DWLB music is at http://dwlb.bandcamp.com/
wtf? Do you guys all live on some survivalist compound in the middle of Montana?
Actually, I could do some foley work for you guys next time my neighbor starts shooting at his dog at 4:00 a.m.
Actually, I could do some foley work for you guys next time my neighbor starts shooting at his dog at 4:00 a.m.
"I have always tried to present myself as the type of person who enjoys watching dudes fight other dudes with iron claws."
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