Wireless Microphones For Video Production

I love wireless microphones!

Wireless microphones not only help the videographer get great sound, but they also help you get great video. Not having to mess with that mess of tangled black spaghetti known as audio cables is more than just convenient, it also allows you to put the cameras in positions you couldn't if you were restricted by cables. Using a wireless keeps people from tripping over cables too!

Here is a brief description of how a wireless mic works. First, they usually have half a dozen pieces, but essentially, there are two basic parts.

* Transmitter
* Receiver

The actual microphone is plugged into the transmitter. The person speaking usually wears the transmitter by clipping it to their belt or shoving it into their pocket. Pay close attention when you are watching some TV shows and you can see a little black box about the size of a deck of cards on people's back tucked into their belt. This is the wireless transmitter. They put it on their back to hide it as much as possible.

Then, the receiver is plugged into the camera, or where ever your sound is being recorded.

The transmitter takes the microphone signal and transmits it to the receiver via a radio signal. The receiver picks up the signal much like a radio picks up a radio station signal.

Instead of having your audio travel from the microphone to the recording device through a cable, it travels through the air. So it is this cable that is eliminated. This is the only cable that is eliminated, but it is your most limiting cable so dealing with the other cables is no big deal. Other cables are used to plug the mic into the transmitter and the receiver into the recording device, so a wireless microphone system is not COMPLETELY wireless, which can confuse people.

You can buy wireless microphone in sets, like the one pictured above. This way, you can easily use multiple mics together. Each mic needs to have its own radio signal. Problems arise when these radio signals conflict or get crossed. Sets eliminate that problem. You can also eliminate the problem by setting your mics to different frequencies, but that takes both a microphone that allows you that kind of control and the know-how to do it. It's usually not too complicated though.

A good wireless microphone will cost quite a bit more than a comparable wired mic. Anything cheaper than $300 is probably not very good. A crummy wireless is a total pain in the butt because the signal will cut out and have tons of interference and static.

If there is no advantage to using a wireless, go with a wired. The advantages of using a wireless usually boil down to being able to let the camera move more freely and be further away from the people speaking. So if you're recording something while everyone is seated, using a wireless microphone is not going to help you much.

You can buy wireless microphone systems that do not actually include a microphone, it is just the transmitter and receiver. These work with multiple microphones. You can get a hand held mic, a lavaliere and a shot gun microphone all to work with the same transmitter and receiver system.

If you are shooting video where the camera needs to move about freely, having a wireless microphone is very helpful.

B&H photo has a great selection of wireless mics. I just went to their site and 94 pages worth of results came up for the keywords wireless microphone.

Thanks for reading Video Production Tips
Lorraine Grula
Internet Video Gal

Lorraine Grula is an award winning video production professional with over twenty-five years of experience. She has worked on virtually every kind of video production imaginable. Today, she gives out free advice on video production through her blog, http://www.videoproductiontips.com

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