Dynamic Microphone
Microphones convert sound waves into electrical energy. Technically, a microphone is an electro-acoustic transducer. When a magnet moves near coiled wire an electric current is induced. This principle is crucial to the design of dynamic microphones. Most microphones mimic the operation of the human ear with a thin membrane (diaphragm) that vibrates in response to variations in sound pressure. In a dynamic microphone, a small movable coil of wire is attached to the diaphragm near a magnet. As the diaphragm moves back and forth in response to incoming sound waves, the coil moves near the magnet, inducing an alternating electric current. This is transmitted through the microphone cable to a preamplifier where its level is boosted for recording or amplification.
Advantages of Dynamic Microphone
Durability
Dynamic microphone are built to withstand rough
handling and harsh conditions, making them ideal for
live performances and outdoor recordings.
Versatility
They are capable of handling high sound pressure
levels, making them suitable for recording loud
instruments such as drums and electric guitars.
Cost-effectiveness
Dynamic microphone are generally more affordable
compared to other microphone types, making them a
popular choice for beginners and budget-conscious
individuals.
Handling lots of sound pressure
The design of Dynamic microphone means they're not
sensitive to pressure. This makes them an ideal choice
for live music events and concerts involving loud
sounds, such as drums and electric guitars.
Reducing ambient noise
Most Dynamic microphone capture sound within a medium
frequency range. This makes them less likely to pick
up unwanted background noise or feedback. Thanks to
this, they're a great choice for broadcasting and
podcasting.
Durable and cost-effective
The basic design makes dynamic microphones cheaper
than other options. They are also highly durable,
making them ideal for creators who are packing up and
travelling to different locations.
Minimal power requirements
Dynamic microphones can work without being plugged
into electrical power. You can plug them into a
standard microphone input without batteries or power
packs. This makes them simple to set up and ideal for
beginners.
Why Choose Us
Quality assurance
In terms of quality assurance, the company strictly follows the standards and norms of the industry quality system. Adopt industry-leading testing equipment to ensure product quality and good reputation.
Professional service
We can accept factory inspection and goods inspection at any time. Technical discussion, research and development of new products, and complete after-sales service.
Cheap price
We have a professional purchasing team and costing team, trying to reduce costs and profits, and provide you with a good price.
Oem/odm
When you put forward your needs, our engineers will provide you with faster and more perfect customized solutions. We have a wide range of products, and we will provide technical support according to your actual needs to choose the right product for you.
Types of Dynamic Microphone
Condenser microphones
Condenser microphones are commonly used in music and podcast
studios. Some people prefer the sound quality and warmth of
condenser microphones compared to dynamics. However,
condensers are designed for quiet studio recording and do not
perform well in living rooms or public places with background
noise. They are sensitive and not very good at reducing room
noise.
Ribbon microphones
Ribbon microphones are a type of extremely thin aluminium
ribbon as the electrical conductor instead of a membrane and
coil. This design produces sound with greater accuracy because
the ribbon can follow the sound waves more precisely. In
addition, since it involves only one conductor in the magnetic
gap, ribbon mics generate much lower level output than
traditional moving coil capsules.
Noise-cancelling microphones
A noise-cancelling microphone is designed to reject background
noise and focus on close sounds. It uses a pressure-gradient
design and acoustic labyrinths (whatever that means) to cancel
out ambient noises and unwanted audio signals.
Shotgun microphone
Shotgun mics are highly directional microphones commonly used
in film and television production. They are used to capture
sound from specific directions while minimizing background
noise. They are also used on boom polls and for recording
dialogues.
Dynamic Vs. Condenser Microphones: What Are the Key Differences?
While both microphones convert sound waves into a voltage and then send them to a pre-amp, the difference lies in the way this energy is converted. Dynamic microphones use electromagnetism to turn sound waves into voltage. They use sound waves that vibrate the diaphragm and create electricity, which is then increased with the use of a transformer, and sent to the microphone's output, creating sound. Condenser microphones work as a battery. Sound waves vibrate the diaphragm with a magnetic plate that's behind it and boost voltage which is sent through a phantom power supply (+48V) to increase it and send it to the microphone.
A word on the common applications of dynamic and condenser
microphones. Dynamic microphone will often be used for scenarios
like a live performance where there is a loud sound source. They
are mainly considered best-fit for loud, live vocals. They are
also good for brass instruments, keyboards, drums and guitar
amplifiers. Condenser mics are the preferred type for studio
applications to achieve a bigger, natural tone. Some examples of
what they're typically used for includes acoustic guitars,
bass drums, piano and vocals.
Difference between the polar patterns. Usually, dynamic
microphones have a cardioid or supercardioid pattern, whereas
condensers can have any pattern, often with the ability to change
polar patterns.
There is a difference in how they work. The Dynamic microphone use
a diaphragm, voice coil and magnet to pick the sound waves and
convert them into an electrical signal. Condenser mics use an
electrically-charged diaphragm, which when vibrates, an electrical
signal is generated that is proportional to the sound.
Application of Dynamic Microphone
Studio Recording
Two broad categories to consider are condenser microphones
and Dynamic microphone. For high-frequency instruments
like acoustic guitar, piano and cymbals, condenser mics
are a good pick. For low-frequency instruments like drums,
Dynamic microphone fit best. Another option to check out
is ribbon mics, that use a thin aluminum ribbon for
capturing the sound.
Work from Home
Working from home means a lot of virtual, remote
collaboration. Microphones on a laptop can get bad and
echoey. A good microphone can take care of a good share of
your work from home.
Podcasting
Whether you are recording your first podcast, or happen to
be a regular podcaster, take advantage of solid podcasting
mic.A dynamic microphone remains podcasting essential, as
it adds a fabulous, professional sheen to all your vocal
recordings, whether it is a group session or a one-on-one.
Live Performances
When it's a live performance, the right (or wrong)
choice of a mic, can make or break the performance.
Uncompromised reliability remains the topmost requirement
in a mic to help a performer deliver their best. Other
factors to consider are size, presence boost and pop
filter, to name a few.
Components of Dynamic Microphone
Windscreen (or grille)
The windscreen is the part of the microphone that you speak or sing into.
Diaphragm
The diaphragm collects sounds and transforms them into electrical currents. It can be equated to the human eardrum.
Coil
The coil is a small section of wire attached to the diaphragm. When the diaphragm moves, it shifts the coil, which creates an electrical signal.
Magnetic core
It produces a magnetic field for the coil.
Capsule. In the capsule, sound vibrations are converted to
electrical signals, which are sent to the speakers.
Body
The body is the external housing of the device. The sturdier the body, the more easily its electronics will be able to handle inevitable falls, knocks and drops.
Output
The output (or output jack) is where a cable is plugged into the microphone so that signals can be transported out as sounds.
Unscrew the grille from the microphone and rinse it off with water. Use a mild detergent to eliminate odors. If it does get sticky, try a toothbrush with soft bristles. When cleaning, you can leave the foam windshield on the grille.
Be sure to allow the grille to dry before putting it back on the microphone. Air-drying is best, but a low-temperature hair dryer will also work as long as you remove the inner foam windshield. Never use a high temperature setting- it will melt the windshield.
If your microphone does not have a detachable grille, turn the microphone upside down and gently scrub it with a damp toothbrush. Turning the microphone upside down prevents moisture from leaking into its cartridge. You can clean the foam that covers the SM58 diaphragm in the same way.
If your microphone smells bad, scrub it gently with a toothbrush soaked in diluted mouthwash and aqueous solution. Again, turn the microphone upside down when you do this. Never spray disinfectant or any cleaning agent on the head of the microphone as this will penetrate the grille and potentially damage the microphone.
If someone is using your microphone with lipstick, then you may find lipstick applied to the grille. This stubborn substance is designed to stay on it, not fall off. Thankfully, there are makeup wipes that are designed to remove lipstick without removing lips. These can be used to wipe down the exterior of the grille and hopefully prevent the next person in front of the microphone from getting second-hand lipstick.
Placed in the die of a punch press. The die is an inverted replica of the desired case shape. The hydraulic punch is release and forces the aluminum into the die. Any excess material is trimmed and discarded. If the case is to be made of plastic, the plastic pellets are fed into a hopper and melted. The liquid is poured into an injection molding machine. The machine feeds the liquid into a closed mold. Once the mold is filled and the plastic has cooled, the mold is opened and the plastic case is taken out. If a switch is required, it is mounted in position in the case and secured with small screws and nuts or rivets.
The voice coil is made by winding very fine enameled copper wire onto a plastic bobbin. The wire is secured to the bobbin with glue.
The permanent magnet is made from a neodymium iron boron compound. It is formed by sintering the powder (the powder is placed in a high pressure die and heated, the metals combine and becomes a solid) or by bonding it with plastic binders.
The pre-cut plastic diaphragm is placed in a holding fixture. The voice coil bobbin is then glued in the exact center of the bobbin. After the glue has cured (about 24 hours), the assembly is lowered into the permanent magnet assembly and glued together.
A coaxial audio signal cable is selected and cut to length. Insulation is stripped from all leads at both ends of the cable. Then, an audio connector is soldered to one end of the cable. The open end to the cable is left free.
The open end of the audio cable is inserted through its hole in the bottom of the case. The cable is pulled out through the top of the case a sufficient length to allow the wires to be soldered to the switch and voice coil.
A foam rubber spacer is placed around the voice coil assembly and the assembly is lowered into the case. It is secured into proper place with a grille and cap.
The Dynamic microphone is then packaged and shipped to the distributor.
How to Choose a Dynamic Microphone
Price
There's a wide range of quality across different models. Rather than agonize over the 'right' mic, focus on your show planning and guest relations.
Volume
Loud guests will fare better with a dynamic mic than a condenser. Again, the model of the microphone matters less than the right amount of input gain (ie loudness "allowance") on your recording device.
Longevity
Is buying a $100 mic a pretty big once-off purchase for you? If so, get a tried-and-tested model that lasts forever rather than a newer design. The indomitable shure sm58 is your best bet.
Polar patterns
Dynamic mics generally have cardioid polar patterns. If recording directionality is a factor for you, you'll need to shop around.
How the Dynamic Microphone Works
A dynamic microphone is a device that converts sound into an electrical signal and is suitable for picking up louder sound sources. Its pickup pattern is similar to the figure-8, i.e. it is equally sensitive to sound from the front and back, but sound waves from the side will not be accepted, and there is a coil inside the microphone, which is fixed in a magnetic field. The movement of the diaphragm causes the coil to move with it. When a sound wave hits the microphone, the membrane (diaphragm) vibrates back and forth with the rhythm of the sound wave, and the relative motion of the coil within the magnetic field creates a small voltage signal in the coil. This electrical signal is the process by which the microphone converts sound into an electrical signal.
Precautions for Using a Dynamic Microphone
Handle with care
Dynamic microphones are built to withstand rough handling, but
it’s still important to be gentle when handling them. Avoid
dropping or banging the microphone, as this can damage the
internal components or cause the microphone to stop functioning
correctly.
Store them properly
When not in use, store your dynamic microphone in a protective
case to shield it from environmental factors such as dust and
moisture. Avoid exposing your microphone to extreme temperatures,
as this can damage the internal components.
Use a windscreen or a pop filter
When using your dynamic microphone for vocals or recording,
it’s essential to use a windscreen or pop filter to prevent
plosives and wind noise from distorting the audio. This can help
prolong the lifespan of your microphone by reducing the stress on
the diaphragm.
Regularly check cables and connectors
Over time, cables and connectors can become damaged, which can
affect the microphone’s performance. Regularly check the
cables and connectors for any signs of wear or damage, and replace
them if necessary.
Company Profile
Shenzhen Marquess Electronics Co., Ltd. was founded in July 2004, originating from the Japanese AOI Electric Motor Manufacturing Company as a joint venture specializing in the production of ECM (Electret Condenser Microphones).
Our Certificate
ISO 9001 2015,ISO 14001 2015,ISO 4500 12018,UL E473299,UL E473487
FAQ
Q: What is a Dynamic Microphone?
Q: How does a Dynamic Microphone work?
Q: What are the advantages of using a Dynamic Microphone?
Q: In what situations are Dynamic Microphones commonly used?
Q: Do dynamic microphones need phantom power?
Q: When should I use a dynamic microphone?
Q: Which microphone is better for podcasting?
Q: Are dynamic microphones suitable for vocals?
Q: Which is better, condenser microphone or dynamic microphone?
They use both depending on the situation. For live use, dynamic microphones are more robust and well suited to the dynamic range of a PA system. Condenser microphones are more sensitive and are ideal for quiet and controlled recording environments.
Q: What is the difference between dynamic microphones and ordinary microphones?
Q: Are dynamic microphones good?
Q: Which type of microphone is best for vocals?
Q: Are dynamic microphones quieter than condenser microphones?
Q: Do dynamic microphones pick up background noise?
Q: Are dynamic microphones more expensive than condenser microphones?
Q: Do dynamic microphones use XLR?
Q: What are dynamic microphones used for?
Q: What’s the difference between dynamic and condenser microphones?
Q: Can dynamic microphones be used in recording studios?
Q: Are dynamic microphones fragile?