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Tiny Tech Tips: Microphones

Choosing different mics to capture a variety of instruments is an art form. There are countless options at different price points and there are no right answers. EQ adjustments to treble, bass and midrange frequencies can make an inexpensive mic sound good. Mic placement can change the sound dramatically. Whenever I'm not sure how to record an instrument, I move my head around until it sounds nice, then I replace my head with a mic. (Trade secret!) Also, what does the room sound like where you're recording? Are there a ton of reflections or reverb that could affect clarity? Are the lights buzzing or is there a humming refrigerator in the background that could be unplugged? Are you outside and need a dead cat windscreen?

Recording With One Stereo Mic

If you're looking for a quick way to dramatically improve the sound of the built-in mono mic on your phone, Shure's MV88+ Video Kit ($250) should do the trick. The kit includes a mount for your phone and a solid Manfrotto mini-tripod. I made this video of sea turtles being released and was impressed how it recorded a variety of sources, and I was also able to monitor the audio I was capturing through the included 1/8" headphone jack. It's essential to hear what you're recording in real time, so you can make level or placement adjustments. You can also control the stereo width and EQ in the Shure Motiv app (for iOS and Android). They also sell a mic-only version ($150), which plugs directly into the Lightning port of your iOS device, though it won't work with Android. All Songs Considered's Late Night Dispatches used this mic at SXSW this year.)

The somewhat (ahem) iconic Sennheiser MKH 418-S.
Amr Alfiky / NPR
The somewhat (ahem) iconic Sennheiser MKH 418-S.

A much more expensive stereo mic is the Sennheiser MKH 418-S ($1,650). My colleague and mentor Kevin Wait gets all the credit for choosing this mic to capture the early Tiny Desk Concerts. If I only had one mic, I would strategically place all the musicians around it and hit record. It's designed to capture voice for film (just like the 416 mono version — $1,000 — seen at the end of many boom-poles on set). If you get the placement on this mic just right the clarity is astonishing, but bright. It doesn't need to be too close to capture a vocal and push it out front in the mix and, as a result, you can see the facial expressions of every performer at the Tiny Desk without sacrificing intimacy. (Note: The secret of the 418-S is that it's two mics in one; a cardioid "mid" condenser capsule facing front, and a bidirectional capsule focused on either "side." It's a mid/side stereo mic that needs to be decoded in post, which allows you to control the stereo width of the image, even after the recording is made.)

Recording in stereo allows the listener to localize sound, which can provide a more vivid soundstage, especially with headphones. There are many types of microphones and each have a unique sound. The more you discover them, the more you'll find what you like best.

And, like every art form, it's all subjective.

Stereo Recording Techniques At The Tiny Desk

Mid/Side — One cardioid and one bidirectional mic used in the Sennheiser 418-S shotgun mic. Great stereo to mono compatibility when you listen in mono plus it has an adjustable stereo width.

ORTF — Two cardioid mics on a stereo bar, set at a 110-degree angle. I use this setup behind the upright piano for a wider, more spacious sound.

Spaced Pair — Two parallel, omnidirectional mics set a few feet apart, which I use to capture the audience from above the Tiny Desk's wide shot camera angle.

Dynamic Vocal Mics

Using more than one mic gives you a lot more control over the balance of the instruments, and handheld dynamic microphones are the most commonly used for vocalists. But use caution; it can be tricky to avoid plosives if you work them too close.

Shure SM58 ($100)

This is the mic you see on almost every stage in the world, the venerable Shure SM58. Ironically, "SM" is short for Studio Microphone. It's designed to reject everything but what's directly in front of it, with an EQ curve meant to enhance vocals and suppress plosives. It's also quite durable.

Heil Sound PR 22 ($185)

Heil's PR 22 rejects handling noise and can record a loud snare drum hit without distortion. Great rear-noise rejection means you can get plenty of level in a stage monitor before feedback. (And they ship in black, white and gold for a little personalization.)

Telefunken M80 ($250)

This handheld stage mic has a clarity traditionally reserved for more expensive condensers. I've seen a lot of artists travel with these mics to replace the in-house SM58's, like Cautious Clay recently did for our first-ever Tiny Desk Family Hour at SXSW. You can order them in almost any color, which makes these mics really pop visually on stage.

Large-Diaphragm Dynamics For Horns, Kick Drum, Toms and Vocals

Heil Sound PR 40 ($330)

There's nothing like a large-diaphragm dynamic mic on a kick drum (or a podcast host, for that matter — pull it out of the kick drum to record your next show for warm and intimate spoken word.). The PR 40 has a wide frequency response, helping to capture the thump and snap of a good kick drum. I use the less expensive PR 31 BW ($270) in front of guitar amps, because the warmth and depth is richer than the ubiquitous, albeit less expensive, Shure SM57 ($100) — although the SM57 does sound amazing on a close-miked snare drum.

Electro-Voice RE20($600)

When I sing into an RE20 I... look like a dork. But there's a presence and warmth that translates equally as well on a kick drum, like the one I captured with Nate Smith in his studio during Winter Jazzfest for our Night Owl Series. Like other high-end mics, it has a bass roll-off switch to help dampen plosives when using for vocals, or if you need to cut low-end rumble.

Small Diaphragm Condensers For Strings, Percussion, Piano and Audience

Blue Hummingbird ($300)

I've used the Hummingbird, a versatile condenser mic, for percussion on countless Tiny Desk Concerts, like Pedrito Martinez's unbelievable conga-snare-cajon-cymbal setup. The Hummingbird can take high sound-pressure levels, and its swiveling capsule can be focused easily for perfect mic placement. It's an incredible value and sounds great on acoustic string instruments, too. [Disclosure: Blue Microphones is a sponsor of this year's Tiny Desk Contest.]

Sennheiser MKH 40 ($1,200)

Anything I put it in front this mic sounds great, with very little EQ. It has a bass roll-off switch to help with plosives and low-end rumble, plus a 10dB pad if you want more fader travel on your mixer from loud sources. I use a stereo pair in ORTF formation to record the piano for every Tiny Desk Concert, including my favorite performance (on a seven-foot grand) by Chick Corea. It also picked up the nuanced sound of Yo-Yo Ma's cello at Bob Boilen's desk with aplomb.

Schoeps CMC6 (amplifier) + MK2 (capsule) ($1,650)

I'm fortunate that NPR has collected a number of mikrofones [sic] over the years from Schoeps, a German manufacturer. I use a pair of MK2's about nine feet in the air above the wide-camera shot facing the Tiny Desk to capture the audience. I set a nine-millisecond delay on all the other sources to time-align all the mics, because sound travels slowly. Then, when I crank up the hanging Schoeps to capture louder brass instruments, I avoid the dreaded hollow sound created by comb filtering, because the sources are aligned by the time they're recorded to track.

Small Diaphragm Miniature Condensers For Strings, Horns Etc.

AKG C519 M ($250)

The beauty of using a clip-on is that it always stays on-axis, because you attach it directly to the instrument. The C519 M from AKG has a gooseneck adjustment to allow precise placement. If you look closely, I used it to record the Wurlitzer electric piano for Andy Shauf.

DPA d:vote 4099 ($600)

DPA's d:vote 4099 is the instrument-clip-on version of their popular d:screet 4060 lavalier, which Wait Wait Don't Tell Me uses for all their panelists (and their host). The instrument version is supercardioid, to avoid bleed from other sources, and they make a variety of clips designed for cellos, upright bass, violin, drums, guitar, woodwinds, brass — even accordion. When string players perform, I always ask if they have DPAs, which saves a ton of space behind the desk. The clip-ons eliminate mic stands and leaves room for music stands, which (of course) many classical musicians use.

Large-Diaphragm Condensers For Vocals, Cellos, Piano and Acoustic Bass

Ear Trumpet Labs Delphina ($600)

Ear Trumpet Lab makes gear that looks like the audio engineer from a steampunk-themed Burning Man camp designed it; I used the Delphina for vocals at the Tiny Desk for Weezer and &More. The large-diaphragm condenser sounds warm and natural, and you don't have to get it too close to convey intimate, yet crystal-clear, vocals. I first saw an Ear Trumpet Mic when The Milk Carton Kids brought one to a taping of Ask Me Another, and I've enjoyed the sound (and look) ever since. The Milk Carton Kids uses the Edwina model designed to reject feedback in rooms with a PA.

Blue Mouse ($1,250)

Blue's mics are incredibly easy to work with. The mouse swivels and pivots in every direction, promoting mic placement experimentation to achieve the best sound, without having to fix it in post. It picked up the articulation on Raul Midón's acoustic guitar and the dynamics of Laura Lee's bass (from Khruangbin) on their Tiny Desk performances beautifully.

Neumann U87 ($3,600)

At every mic position at NPR HQ, NPR West and NPR NY sits a Neumann U87. The mic is crystal clear — and a bit too bright on some voices, especially because we engage the bass roll-off. It can be switched to a bi-directional pickup pattern, so you can record two voices speaking on either side of it, or capture the "side" signal of an mid-side stereo recording. (You can also select "omni" to pick up more off-axis sources.) It's a nice mic with a huge price tag, and I never use it at the Tiny Desk — except as a very expensive prop.

Ribbons For Brass, Piano, Vocals and Drum Overheads

Coles 4038 Studio Ribbon Microphone ($1,365)

The mic I get the most questions about (aside from the stereo "Tiny Desk" shotgun mic) is a ribbon type I use on brass, made by Coles and designed by the BBC in England. The response is clean and honestly flat throughout the frequency spectrum. Listen to the way it captures the transients and nuance of a good horn section. (Important note: Ribbon mics are extremely delicate and should never be supplied phantom power from your mixer or recorder's mic preamp. Before I patch in a ribbon mic, I always make sure phantom power is off and the channel gain is set to zero.)

RCA 44 (vintage and priceless, or about $3,000 if you can find one)

WNYC has an incredible microphone cabinet, and among them are four RCA 44 ribbon mics. There's only been one sighting I can think of at the Tiny Desk, when ALA.NI performed — in it, you can hear the vintage, silky-clean response this sought-after ribbon mic can produce on vocals.

By no means is this an exhaustive list of every great microphone that's out there. Producing the audio for the Tiny Desk series is anything but a stagnant endeavor, and every act that shows up provides an opportunity to try something new. Thankfully, the technology is constantly evolving, while borrowing from the well-worn classics still being made. I can't wait to discover and experiment with my next favorite mic.

Copyright 2021 NPR. To see more, visit https://www.npr.org.

Josh Rogosin (he/him) stumbled into NPR HQ in 1999 on his way to mixing shows at The Shakespeare Theatre in downtown DC. Since then, he has been at the controls for all of NPR's flagship newsmagazines and gathered sound in far flung places like Togo and Benin, West Africa, Cambodia and Greece for the Radio Expeditions series. He has engineered at NPR West and NPR NY and spent two years as Technical Director at Marketplace Productions in Los Angeles. He served as Senior Broadcast Engineer for New York Public Radio and Studio 360, and was an originating producer and sound designer for NPR's Ask Me Another.