Always Keep Your Mouth Close to the Mic?
When it comes to microphones, there’s a common instruction that’s often given: “Always keep your mouth close to the mic.” However, the appropriateness of this advice can vary significantly depending on the type of microphone you’re using.
There are two major types of microphones to consider: dynamic and condenser. Each has its own specific characteristics, strengths, and ideal usage scenarios, and understanding these can make a significant difference in the quality of your audio output.
Dynamic Microphones
Dynamic microphones are robust, versatile, and capable of handling high sound pressure levels. They are typically used in live sound environments, such as stage performances, public speaking events, and broadcasts. These types of microphones operate using a moving coil magnetic diaphragm, which can withstand louder sounds and rough handling.
When using a dynamic microphone, it’s generally advisable to keep your mouth as close to the mic as possible. This is because dynamic mics are designed to pick up sounds that are directly in front of them, reducing the pickup of unwanted ambient noise. By speaking or singing close to the microphone, you ensure that your voice is the dominant sound it captures, resulting in clearer and more direct audio reproduction.
“Dynamic microphones: built for the stage, ready for the roar, capturing the raw energy of the moment. “
Condenser Microphones
On the other hand, condenser microphones are much more sensitive and accurate. They are often used in recording studios for vocals and high-frequency instruments due to their ability to capture a wide range of frequencies. Condenser mics require power, either from battery or phantom power supply, and use a charged diaphragm and a backplate to create an audio signal.
Because of their sensitivity, positioning your mouth in close proximity to a condenser microphone can sometimes lead to issues such as over-vibration and the production of ‘popping’ sounds. These sounds are caused by the rush of air from certain spoken or sung sounds, especially plosives like ‘P’ and ‘B’ sounds, hitting the diaphragm of the microphone.
When using a condenser microphone, you may need to position yourself a little further away than you would with a dynamic mic. A pop filter can also be a helpful addition in reducing the impact of plosives.
Consultation
Whether you’re using a dynamic or condenser microphone, it’s always beneficial to consult the on-site operator or technician about its proper usage. They can provide guidance and advice tailored to the specific microphone model and the acoustic environment you’re in.
Remember, the goal is always to provide the clearest and best possible sound. By understanding the type of microphone you’re using and how best to use it, you’re one step closer to achieving that goal. So, the next time someone tells you to “always keep your mouth close to the mic,” you’ll know that the real answer is a bit more nuanced.
