The Basic Basics of Microphone Basics, Part II

The Basic Basics of Microphone Basics, Part Two

By Richard Aronson, Product Specialist

No pithy phrases, no comical anecdotes and no going on and on about food or chocolate. In this article I am getting right to the point. You need to know how to choose the right microphone and I want to help you make that choice wisely. In part one of this mini series (The Basic Basics of Microphones) I wrote about the two primary types of microphones: dynamic and condenser. If you haven't read that article yet go check it out and then come back to this one. Here, in part two, I am writing about how mics pick up sound. But first, let me tell you a story ...just kidding.

Every microphone picks up sound in some patterned fashion. This is called the polar pattern or directionality of the microphone. The pattern determines how much sound will be picked up at different angles in relation to the front of the microphone. This is important to know because when you pick a mic, especially for live sound. You'll want to maximize the sound you are trying to put into the mic and minimize the sound that you don't want the mic to pickup. For example, you want to capture all the sound from the vocalist that is singing but you don't want any of the sound from the monitor that they are listening to spilling into the mic.

There are five directional patterns used in microphones: omnidirectional, cardioid, supercardioid, hypercardioid and bidirectional. Most mics for live performance only have one of these patterns built into them, but there are some microphones available that have switchable patterns which means you can use one of several patterns built into that mic. Let me give you a brief description of each pattern:

Omnidirectional
Omnidirectional Polor Pattern

Microphones with this pattern will pick up sound evenly regardless of where the source is in relation to the front of the mic. As you can see in the nifty little picture to the right, the pickup pattern is represented as an even sphere all the way around the pick up end of the mic. There is little or no rejection of sound behind the pick up end. You might choose an omnidirectional mic for a small choral group or for some backup singers who can share a single mic. But be aware, omnidirectional mics will not only pick up your singers, they will pick up everything else as well, including stage monitors, causing unnecessary feedback. One of the most popular uses of omnidirectional mics in the church is the lapel mic. Some of the most popular models with an omni pattern are the Audio-Technica 831CW, the Shure WL183 and the Sennheiser ME2.

Cardioid
Cardioid Polar Pattern Picture

This polar pattern is by far the most popular one, especially for live sound. Cardioid Polar Pattern Diagram

It is called cardioid because it picks up sound in a heart-shaped pattern as evidenced by the pictures to the left and right. If you compare the image to the right to the omni image above you will notice how the cardioid picks up less sound from the rear of the mic then an omni mic does. This is ideal when you have stage monitors shooting sound straight into the face of a singer but don't want that sound bleeding into your mic. A few great examples of cardioid mics are the Audio-Technica AE4100, the Shure SM58 and the Sennheiser E835.

Supercardioid and Hypercardioid
Supercardioid Polar Pattern

These two patterns are variations of the cardioid pattern. They still reject sound from the rear but not as well as the cardioid. The supercardioid picks up some from the rear and the hypercardioid picks up even more. Actually, a hypercardioid mic is closer in relation to a bidirectional mic than a cardioid. Several excellent handheld mics have super or hypercardioid patterns such as Audio-Technica ATM610, the Shure Beta 87A and the Sennheiser E945.

Cardioid & Supercardioid Mic/Speaker Placements

Cardioid & Supercardioid Mic/Speaker Placements

When you use a super or hypercardioid mic in a live performance make sure you arrange your stage monitors correctly. The diagram to the right should help give you a clue. Notice that while the speaker is placed directly behind the cardioid mic, it is set off to an angle for the supercardioid mic. This would be the same setup for a hypercardioid. By placing your stage monitors accordingly you should be able to get more volume out of your monitors and less feedback.

Bidirectional
Bidirectional Polar Pattern Picture

Mics with this pattern are able to pick up sound equally well to the front and to the rear of the mic element. They reject the most sound from the sides of the mic. Another name that bidirectional mics go by is Figure-8. You won't find too many bidirectional mics being used during worship services but once in a while you might find a reason to use them. I like to use them with small children's choral groups. I will place two to three kids on each side of the mic and let them have at it. I would rather place them in front of a stationary mic than give a group of kid's handheld mics. If you have ever given six children handhelds than you know what I mean (although your experience was probably blessed). A few good figure-8 mics are the AKG C414 B-XLS, the CAD TRION 6000 and the Shure KSM44. These are also examples of switchable pattern mics since they offer other patterns besides figure-8.

In Closing...
If you run sound or are involved with the technical ministry of your church you should learn as much as you can about what you do, and that involves knowing how your microphones work. Knowing their directional patterns will help you pick the correct mic for every specific application.


Showing 1 - 12 of 12

The Basic Basics of Microphone Basics, Part II

AKG C414BXLS Microphone

$999.99

List Price $1299.00

Save 23.0% with CCI Solutions

5 Pattern Studio Condenser Microphone

With the introduction of the Next Generation C 414 B-XL models, AKG sets new benchmarks for useful features, improved technical specifications, ease of use and available accessories. All of these improvements are answers to . . .

Audio-Technica AT831CW Lapel Microphone

$74.99

List Price $149.00

Save 49.0% with CCI Solutions

Cardioid Condenser Wireless Lavalier Microphone

The Audio-Technica AT831CW is our most popular mic for wireless lapel systems. Developed specifically for pick-up of voice and musical instruments, it offers, crisp, full sound and a cardioid pickup pattern for superb rejection . . .

ITEM NUMBER: AKG-C414BXLS	ITEM NUMBER: AT-831CW

Audio-Technica Artist Elite AE4100 Microphone

$169.99

List Price $289.00

Save 41.0% with CCI Solutions

Dynamic Cardioid Handheld Vocal Microphone

Audio-Technica's Artist Elite microphones set a new standard in live audio with superb sound and bullet-proof construction. The dynamic cardioid AE4100 has an aggressive sound with very low noise and high durability.
. . .

Audio-Technica ATM610 Handheld Vocal Microphone

$139.99

List Price $249.00

Save 43.0% with CCI Solutions

Hypercardioid Dynamic Vocal Microphone

Tuned for clear, detailed, extended-range reproduction of lead and backup vocals, the premier ATM610 Artist Series dynamic vocal mic is equipped with a rare earth neodymium magnet, a tight hypercardioid polar pattern and multi-stage . . .

ITEM NUMBER: AT-AE4100	ITEM NUMBER: AT-ATM610

CAD Trion 6000 Condenser Microphone

$94.99

List Price $499.00

Save 80.0% with CCI Solutions

Dual diaphragm studio condenser microphone

CAD’s new Trion 6000 is a multi-pattern, externally biased, large dual diaphragm studio condenser microphone.

The Trion 6000 incorporates a sophisticated, precision-machined, hand-assembled capsule. The low . . .

Sennheiser E835 Handheld Vocal Microphone

$99.99

List Price $150.00

Save 33.0% with CCI Solutions

Microphone, wiredm dynamic cardioid handheld

The Sennheiser e835 is an intense, lead vocal stage mic that's designed to perform well under pressure. Its uniform frequency cardioid pick-up pattern maintains signal quality when moving on and off axis, and its minimal . . .

ITEM NUMBER: CAD-TRION6000	ITEM NUMBER: SEN-E835

Sennheiser e 945 Handheld Microphone

$219.99

List Price $298.00

Save 26.0% with CCI Solutions

Dynamic handheld mic, super-cardioid, ndym ferrous magnet

The e 945 is a fully professional super-cardioid vocal microphone which cuts through the mix and offers a smooth, natural sound. Its warm tonal response is matched with rugged construction and excellent feedback rejection. . . .

Sennheiser ME 2 Lavalier Mic

$139.99

List Price $212.00

Save 33.0% with CCI Solutions

Lavalier mic, omnidirectional, 130 dB max SPL

The ME 2 is a lavalier, omnidirectional microphone for use with Sennheiser’s SK 100 bodypack transmitter. Maximum SPL is 130 dB, sensitivity is 20 mV/Pa. . . .

ITEM NUMBER: SEN-E945	ITEM NUMBER: SEN-ME2

Shure BETA 87A Handheld Vocal Microphone

$249.99

List Price $462.88

Save 45.0% with CCI Solutions

Microphone, super cardioid condenser handheld

The Beta 87A™ is consistently a top choice of performers and audio technicians around the world due to its superb accuracy and detail, and rich vocal production. This premium quality supercardioid hand-held electret . . .

Shure KSM44/SL Studio Microphone

$799.99

List Price $1575.00

Save 49.0% with CCI Solutions

Studio Condenser Microphone, Multiple Pattern: Cardioid, Omnidirectional, Bidirectional

The KSM44/SL is a multiple pattern (cardioid, omnidirectional, bidirectional), externally biased, dual large diaphragm condenser microphone with extremely low self-noise (7dB). Developed to meet the needs of studio recording . . .

ITEM NUMBER: SHU-BETA87A	ITEM NUMBER: SHU-KSM44SL

Shure SM58-LC Handheld Microphone

$99.99

List Price $188.00

Save 46.0% with CCI Solutions

Microphone, wired dynamic cardioid handheld vocal

This legendary Shure vocal mic is tuned to accentuate the warmth and clarity of lead and back-up vocals. Consistently the first choice of performers around globe, the Shure SM58® is a unidirectional (cardioid) dynamic . . .

Shure WL183 Microphone

$84.99

List Price $127.30

Save 33.0% with CCI Solutions

omni-directional lapel for use w/ bodypack

Designed for use with a wireless body-pack transmitter, the WL183 is a lavalier electret condenser microphone with a 1.2 meter (4 ft.) cable terminated with a miniature 4-pin mini connector. Its omnidirectional pattern and . . .

ITEM NUMBER: SHU-SM58LC	ITEM NUMBER: SHU-WL183

Showing 1 - 12 of 12

Help

Services

Information

Links

Sound Theology Podcasts

Extended Protection Program

Consulting & Contracting:

Public & Corporate Facilities

Worship Facilities

Why Choose CCI?

CCI Solutions
1247 85th Avenue SE
Olympia, WA 98501

Toll-Free (800) 426-8664
Local (360) 943-5378
Fax (360) 754-1566

Hours Monday through Friday
7AM to 5PM Pacific Standard Time

The Basic Basics of Microphone Basics, Part II

The Basic Basics of Microphone Basics, Part Two

The Basic Basics of Microphone Basics, Part II

With the introduction of the Next Generation C 414 B-XL models, AKG sets new benchmarks for useful features, improved technical specifications, ease of use and available accessories. All of these improvements are answers to . . .

The Audio-Technica AT831CW is our most popular mic for wireless lapel systems. Developed specifically for pick-up of voice and musical instruments, it offers, crisp, full sound and a cardioid pickup pattern for superb rejection . . .

Audio-Technica's Artist Elite microphones set a new standard in live audio with superb sound and bullet-proof construction. The dynamic cardioid AE4100 has an aggressive sound with very low noise and high durability. . . .

Tuned for clear, detailed, extended-range reproduction of lead and backup vocals, the premier ATM610 Artist Series dynamic vocal mic is equipped with a rare earth neodymium magnet, a tight hypercardioid polar pattern and multi-stage . . .

CAD’s new Trion 6000 is a multi-pattern, externally biased, large dual diaphragm studio condenser microphone. The Trion 6000 incorporates a sophisticated, precision-machined, hand-assembled capsule. The low . . .

The Sennheiser e835 is an intense, lead vocal stage mic that's designed to perform well under pressure. Its uniform frequency cardioid pick-up pattern maintains signal quality when moving on and off axis, and its minimal . . .

The e 945 is a fully professional super-cardioid vocal microphone which cuts through the mix and offers a smooth, natural sound. Its warm tonal response is matched with rugged construction and excellent feedback rejection. . . .

The ME 2 is a lavalier, omnidirectional microphone for use with Sennheiser’s SK 100 bodypack transmitter. Maximum SPL is 130 dB, sensitivity is 20 mV/Pa. . . .

The Beta 87A™ is consistently a top choice of performers and audio technicians around the world due to its superb accuracy and detail, and rich vocal production. This premium quality supercardioid hand-held electret . . .

The KSM44/SL is a multiple pattern (cardioid, omnidirectional, bidirectional), externally biased, dual large diaphragm condenser microphone with extremely low self-noise (7dB). Developed to meet the needs of studio recording . . .

This legendary Shure vocal mic is tuned to accentuate the warmth and clarity of lead and back-up vocals. Consistently the first choice of performers around globe, the Shure SM58® is a unidirectional (cardioid) dynamic . . .

Designed for use with a wireless body-pack transmitter, the WL183 is a lavalier electret condenser microphone with a 1.2 meter (4 ft.) cable terminated with a miniature 4-pin mini connector. Its omnidirectional pattern and . . .

Audio-Technica's Artist Elite microphones set a new standard in live audio with superb sound and bullet-proof construction. The dynamic cardioid AE4100 has an aggressive sound with very low noise and high durability.
. . .

CAD’s new Trion 6000 is a multi-pattern, externally biased, large dual diaphragm studio condenser microphone.

The Trion 6000 incorporates a sophisticated, precision-machined, hand-assembled capsule. The low . . .