2.4. Replace the MicrophoneThe built-in microphone on your camcorder can't be beat for convenience. It's always there, it's always on, and it's always pointing at what you're filming . Unfortunately, camcorder microphones have several disadvantages. For example:
"Camcorder sound," that hollow, faraway sonic quality present on most home videos (including the ones shown on your cable station's public-access channel late at night), is one of the most obvious differences between amateur video and professional work. Even if viewers can't quite put their finger on how they know that something was shot with a camcorder, they'll know that it was shot with a camcorder just by listening. 2.4.1. Clip-on (Lavalier) MicrophonesFew camcorder accessories, therefore, are more useful than an external microphone. And it doesn't have to cost a lot. For $20, Radio Shack will sell you a high-quality tie-clip microphone that resembles the one worn on the lapels of newscasters (see Figure 2-2). Of course, if the problem of camcorder audio is that it gets worse when the subject is far away, an external microphone with a six- foot cord isn't of much use. Therefore, consider buying a couple of extension cords for your microphone; they come in lengths of 20 feet or more, and cost about $10. You can plug one into the next , using standard miniplug connectors (like the ones on the end of Walkman headphones). Tip: In certain situations, plugging one cable into the next, as you do when connecting an external microphone to an extension cable, can introduce a hum on your soundtrack. To avoid ruining otherwise great footage, carry with you a pair of cheap Walkman headphones. Whenever you're using an external microphone, plug these headphones into the headphone jack on your camcorder and listen as you film. (In fact, you're wise to use headphones anytime you're filming.)If a humming or buzzing does arise, try exchanging cables, eliminating extension cords, and running the camcorder on battery instead of AC power, until you've isolated the source of the problem. 2.4.2. Wireless MikesOne of those inexpensive tie-clip microphones is ideal when you're filming interviews, speeches, or scripted dialog with actors. But in other situations, a cabled microphone like this is impractical , such as when you're shooting a jogger, somebody in a car, or an undercover agent.
For those circumstances, consider buying or renting a wireless microphone. These microphones come in two parts : the microphone held or worn by the actor or speaker, and a receiver that clips onto your camcorder and plugs into the Mic In jack. The receiver picks up the sound signal that's transmitted by radio waves. (Here again, be aware of interference. As you film, wear Walkman headphones to monitor the incoming sound. There's nothing worse than tender words of love being drowned out by a nearby trucker cursing on his overamplified CB radio that's picked up by your receiver.) 2.4.3. Other MicrophonesIf you're shooting documentary -style, it's impractical to attach any kind of microphone to the people you're filming. Depending on how serious you are about your filming, you have alternatives. A shotgun mike is elongated and thin; it's designed to pick up a distant sound source with pinpoint accuracy. (In Hollywood thrillers, shotgun mikes appear onscreen in the hands of the characters almost as often as they do behind the scenes.) Semi-pro camcorders like the Canon XL1 and the Sony VX2000 have shotgun mikes built right in. Clip-on shotgun mikes are available for less expensive Canon and Sony camcorders, too. There's also the boom mike, which requires a helper to hold over the head of the actor on a long poleanother staple of professional film production. Unfortunately, this kind of mike, too, is likely to dampen your spontaneity. 2.4.4. Where to Buy ThemYou won't find these fancier microphone types, which cost $100 or more, in the local Radio Shack. Online, however, they're everywhere. Video-supply companies like www.rentgear.com, www.markertek.com, and www.bhphotovideo.com are good starting points for your shopping quest. For good information about microphones in general, visit www.audiotechnica.com/using/mphones/guide.
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