Using cordless mics for digital video
Cordless mics are invaluable when shooting events like wedding.The recommend way to get good sound when you are capturing the vows is to "mic the groom".By placing a small, wireless mic on the groom, you will be able to get great sound with no messy cords or cumbersome hand-held microphones.
Other times you will want to use a larger microphone but you still won't want to deal with the hassle of cords.All types of microphones come in the cordless variety.You will be able to purchase hand held mics, shotgun mics and mountable mics that are both uni-directional and omni-directional-all wireless.
Once you have the cordless microphone, you will have to learn how to use it.This is not quite as simple as you might think.The wireless microphone includes two parts, the transmitter and the receiver.Either has a power source, usually a battery pack, and jack plugs.Your job, when you are getting ready to use the microphone is make sure the transmitter and the receiver are powered up and wired correctly (wireless-ha!)
You need to make sure that the transmitter and the receiver are tuned to the same frequency.It really doesn't matter which frequency, as long as the frequencies match.
Look at your camcorder and find a jack that either something like "mic" or "audio".Plug the receiver into the power jack under that label.You plug the transmitter in the same way. Making these connections, you will have a microphone attached to the transmitter and the receiver connected to the camcorder.As long as you have batteries in each and both are turned "on", you are ready to record sound.
It will take practice to learn the nuance of getting really great sound.One key is to eliminate distracting sounds.If you are using a lapel mic, do a couple of sound checks to make sure it isn't placed in a location that generates its own noise.A classic example is having the mic somewhere that the subject's hair brushes against it.Anything brushing against the microphone will make a swishing noise that will be horribly distracting.
Another thing that will make distracting sound is the wind.This is a problem that is hard to deal with you are shooting outside since no one can control the wind.Fortunately, there are a number of foam windscreens available and they are inexpensive.The windscreens are tops that fit right over the receiving holes on the microphone.They are usually black and they look like the ice cream part of an ice cream cone.
Once you start to use your wireless microphone, the most important thing you can do is protect it.You need to protect your mic from moisture and humidity.To do this, you might think to store the mic in a plastic bag but that is the worst thing you can do.If you place the microphone in a plastic bag, the moisture from sweat, spit, or humidity will not be able to evaporate, causing corrosion.
Another thing you will need to protect your microphone from is being banged around or dropped.Microphones are very sensitive and even if your microphone survives being dropped, the small dents will change the shape of the microphone and will affect the quality of your recording.