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Dynamic Microphones
Describing how dynamic microphones work is easy because they rely on the same principles as our own ears.
Sound waves hit a mechanical diaphragm which vibrate a magnate relative to a coil of wire.
This generates an electrical signal which is sent down the output cable.
In the same way, sound strikes our eardrums and travels to nerve endings which produce a signal our brain interprets as sound.
Easy right?!?
What should you consider when choosing a dynamic mic for your setup?
You might want to use this type of mic for live vocal applications or perhaps to record an amp cranked up to 11.
They also do not require an external power supply, known as
Phantom Power,
since the signal is generated by the interaction of the magnet inside the mic itself.
In general, dynamic mics tend to be more rugged than their condenser counterparts and are used for more intense (louder) instances in the studio, like miking a guitar amp or a screaming vocal performance for instance.
Dynamic mics are also great for live applications.
Since they need more of an input signal they don't pick up the ambient sounds of the venue and crowd when compared to a condenser.
You'll notice the SM58 looks more like the mics you see at live concerts, auditoriums, etc. The mesh ball on the end is a type of
Pop Filter
that helps reduce some of the harsh sounds that can come from a spirited vocal performance.
This mic can help you achieve a "live performance" sound in your home recording studio.
If you are hesitant to take the plunge into the $100 microphone world, have no fear.
You can't go wrong with either of the 2 mics shown above.