Beer, toiletries, ice chest, field recorders. Yep, that's a well-stocked camping trip!
The metal bearproof food locker is a common sight in the developed campgrounds of the Sierra Nevada mountains. They’re infamously noisy to open, close, and move things around in, and are usually the first sounds you hear in the morning. They do their job, though…provided you have them closed. I once had a close encounter with a bear whose head was stuck right into my slightly open bear locker (in my defense, it was in the midst of dinner preparation), but that’s another story for another blog.
I finally decided to record one on a trip this summer. It was a kayaking trip, so I had both my Zoom H2 [yeah, this is an older sound] and a hydrophone, so I decided to use both: The Zoom would get the stereo effects and the hydrophone would pick up the raw vibrations. I placed the H2 horizontally centered in the locker, and placed the hydrophone on the single shelf inside. Holy resonance, Batman!
Today’s sound is a collection of hits from this outdoors session, made with hands, metal objects, and a rubber mallet, first at normal pitch and then an octave lower. It wound up mixing rather well with my collection of shovel-in-wheelbarrow sounds from a while back. Get those subwoofers ready for the second half…
Trust me, those are animal calls, and this is a PG-13-rated show.
Not all of us have the long schedules or big budgets that support going out to exotic locations – or even the local zoo – to record unusual animals for sound design. There are an increasing number of excellentcreature-specificeffects collections out there, too.
But another fun alternative is to use animal calls. Mostly created to lure or flush birds for the benefits of hunters, some also mimic the sounds of squirrels and other small animals…they’re not exceedingly realistic, but they do sound pretty neat. These calls can be used as the instructions suggest for some level of realism, but using them in unusual ways can create great base sounds for more extreme uses. On their own, they’re OK, but they’re high-pitched enough that they hold up well to heavy processing. They come in many shapes and sizes, but those that feature bulbs that pass air over a reed can be played more expressively.
These calls have the added benefit of garnering very curious, or suspicious, looks from visitors if you display them in your studio.
Today’s sound is a cute little number called the Squirrel Buster. I rattled it back and forth, cupping my hand over the horn to filter the sound just a little. The first portion is the call being shaken back and forth. It doesn’t really sound like any squirrel I’ve heard…in fact, it doesn’t sound unlike the tail end of a hornbill’s call (which many mistake for monkeys, thanks to Hollywood’s use of the hornbill call in jungle films). Perhaps it would be a nice background layer in an exotic ambience. The second portion is the first that’s been sped up to 200%, then pitched down 1.5 octaves; this sounds a bit more gutteral and almost simian. The third portion is the second, run through the GRM PitchAccum plug-in and sped up again by 200%, and it starts to sound like a layer of rapid-fire alien utterances, a la District 9.
[Røde NT1a microphone into Sound Devices 702 recorder]
There is no photo to accompany today’s sound because it’d surely put you off your lunch.
We were cooking pork – making carnitas, maybe – and part of the food preparation process was to separate out gobs of fat from the meat. It took all of three seconds before I knew that I’d have to record the sound of this disgusting spectacle.
After dinner, I positioned a large condenser mic very close to a metal bowl, in which were the fatty leavings of our meal. I used my hands to get all sorts of slishy, squishy, disgustingness out of it until I had broken it into such small pieces that it didn’t sound so good. Or look so good. Or smell so good. But my skin was silky smooth for a week.
To my surprise, the tones were quite bright and rather subtle. But put against imagery of an alien ovipositor or similar disgustipating slimy thing, it’d be audio-layering magic. [Hint: Other good ways to get these kinds of effects is to scoop petroleum jelly into your hands, but that's pretty messy. You can try massage oil instead, which smells better and is easier to clean up, and try manipulating a bar of soap or other oval object.]
So, today’s lesson: If at first you don’t succeed, try larder.
[Røde NT1a microphone into Sound Devices 702 recorder]
This might be harder to find at a thrift store than at an electronics or hobby store, but there are a large number of ultra-small toy helicopters on the market that can be had for not a lot of dosh. They’re flimsy. They don’t fly well. But they do scare the hell out of family pets, which instantly makes them entertaining, and they do make pretty cool sounds.
So, imagine this: You’re only one person with no assistants nearby. These helicopters, well, they fly erratically. How do you keep a mic trained on it to get a good recording? I solved this problem before by putting wireless mics on moving objects, but they’re far to heavy for something like this. Well, let’s just take advantage of the toy’s weak flying ability: Why not just hold the stupid thing while the rotors rotate? The rotors, however, rotate really quickly, and move a surprising amount of air. The body of the helicopter is so teensy that I couldn’t find a good mic position that blocked the air being moved around, which of course creates a lot of distortion and rumble.
Rather than futz around with a bulky windscreen and furry windjammer, I decided to just attach a contact microphone to the helicopter with gaffer’s tape. This worked reasonably well, especially after a quick equalization adjustment to overcome the somewhat dull midrange response of the mic itself. The sound that was transmitted through the high-density foam body was actually more interesting and full than the rotor’s sound in the free air, anyway. Besides the aforementioned EQ pass, this recording is unaltered. Recorded at 192kHz, this could provide all manner of mechanical effects if pitched down or processed further!
[Contact microphone into Sound Devices 702 recorder]
Meet Zippi: Suitable for propeller sounds of all kinds!
It’s been a long time since I’ve done a Thrift Store Sounds post, so let’s take a look at the nifty Vornado Zippi desktop fan!
It features soft cloth blades, a safety feature given the lack of a cage around the hub and its inevitable placement next to coffee mugs, iPads, and human fingers.
The motor’s not very powerful, and that’s really perfect for sound design. You can put your hand on the hub to slow it down. The soft blades let you stick all manner of wacky things in them without damaging the objects or the blades.
Today’s sound, then, is a short takes of sticking a ball-point pen into the fan blades. I think it’s great as a layering element for propeller sounds, be it a steampunk zeppelin or a toy/cartoon aircraft.
(If you want to hear more Thrift Store Sounds, be sure to check out recordings of a wicker basket and a shoe stretcher, or just use the Search too!)
[OktavaMod MK-012 with cardioid cap, inside Rycote Baby Ball Gag windshield, into Sound Devices 702 recorder]
Unfortunately, due to extenuating circumstances, I had to bow out of the project, and a number of other side-projects. (Saying “no” is a powerful tool to help rein in your life from your own over-committal. Just do it early enough.)
However, one of the more interesting doors I did manage to record was the hinged front panel of an all-metal, 1970′s-era cigarette vending machine. This thing lives in my office, inherited from previous tenants. It’s too big to get rid of, and too odd and ironic to let go of, since none of us smoke. This object has been heard here before.
In honor of the awesome work everyone has done on this upcoming release, today’s sound is a fragment of my own aborted contribution, in the hopes that everyone will support Hiss and a Roar and pick up the collection when it’s released.
[Sennheiser MKH 50/30 mid-side stereo pair with into Sound Devices 702 recorder]
Think about it: Wound metal string under tension, wooden resonator. That’s all a guitar really is. What a wooden gate lacks is thickness, like a guitar, but at more than a meter in width and height, that’s a broad-enough surface to send air molecules running for cover.
I had to rosin the hell out of the bow to make it tacky enough to grip this oversized “string.” I found that also spreading rosin on the wrapped steel cable was helpful. I tuned the cable, as much as one can, by adjusting a turnbuckle.
I recorded in mid-side stereo. Today’s sample features is comprised of one mono track totally dry, one mono track run through Michael Norris’ Spectral Blurring effect, one mono track pitch-shifted down by 1.5 octaves, and the one stereo track pitch-shifted down by three octaves. Recording at 192Hz helps for such tomfoolery.
I apologize to my neighbhors for the unholy racket that I’m sure they thought was a demonic violin 101 class.
[Sennheiser MKH 50 and MKH 30 recorded as mid-side stereo into Sound Devices 702 recorder]
Today's lesson: Channelling resonance through a vibrationally conductive chamber!
[This post's title not ringing a bell? Read more.]
As regular visitors to Noise Jockey havereadbefore, I’m pro-drone, and I vote.
Any rich, enveloping tone is like audio heroin to me. Why? It’s definitely psychoacoustic, possibly all alignin’ my chakras ‘n’ such, maybe it’s the resonant frequency of my skull…I have no idea. While they’re easy to synthesize, they’re harder to record in the real world, but can be much richer and full of sonic surprises.
But it’s not like they’re rare. Quite the contrary: Almostanything will resonate under the right circumstances, but thin metals seems to be the best, including commonplace wire shelving units.
In trying to record a set of metal wire shelves in my shed, I started with contact mics, figuring there’d be subtleties to be captured…but putting mics on the thin rods of the shelves prevented them from moving as freely, and it just lacked the character that my ears heard. I ditched the contact mics and moved a large, polycarbonate bear-proof food canister onto a shelf and stuck a hypercardioid mic right at the mouth of the canister. This amplified the sound, added more of overtones, and increased the sound’s sustain.
Today’s sound is an edit of decays and tones from striking these metal shelves with a hammer. I simply edited out all of the transients of the actual hammer falls, and layered many sequences of these resonant tones together, “boomerang-reversing” some of them to get more consistent volume and tone. However, no plugins have been used.
[Sennheiser MKH 50 into Sound Devices 702 recorder]
No sound designer can resist sound-making objects, so I did some recent damage at ThinkGeek for some small, inexpensive musical items…but then I noticed the robots.
However, I did get a tiny solar-powered grasshopper kit. An offset actuator in its abdomen makes the whole thing vibrate on tiny wire legs when it’s solar-cell carapace is hit with sunlight or a strong halogen source.
Of course, that would sound tiny and delicate. Which is OK. But how to make that sound bigger? Well, you put it on something that will resonate: Something with air around it that will conduct vibrations easily. (I’ve had loud, racous luck with this before.)
Being a hot, sunny Sunday, I chose the top of my closed Weber grill. I tested the sound with contact mics, but the steel was too thick. Truly, and unusually, where my ears were – close to the top of the grill – was where the best sound was. I switched to a hypercardioid mic in a windscreen, and captured today’s sound.
To accentuate the lovely low-mid resonant tones, I applied a huge -24dB cut at 5.5kHz , where the metallic feet where vibrating against the grill (I still wanted a tiny hint of chatter in there), tand a +9dB boost at 180Hz. Could make for a nice layer with some other design elements.
[Sennheiser MKH 50 into Sound Devices 702 recorder]
To paraphrase Ned Flanders, "That set my beatbox all the way up to Roomba!"
Lavalier microphones (“lavs”) are used with wireless transmitters and receivers all the time in the world of film and video production because, well, actors move. Sometimes it’s the best way to mic someone if you can’t keep up with their movement or a boom can’t get close enough, as with a wide shot. They’re not usually the first choice for miking talent, but they’re a common one and a good tool for certain conditions.
Wireless lavs are also handy in sound design for the same reason: Some things move. When they move, you need to pan your mic with it, or accept off-axis sound falloff, or be trying to get a Doppler effect. If you want your mic point-of-view to stay on something moving, and a cable’s going to get in the way, then a wireless mic system is just the ticket.
, recorded with 
