Cameras and built in Microphones – A Marriage of Convenience

wedding-rings-public-domainOkay, so yes. I’ll start out by acknowledging that Marriages of Convenience can sometimes work. And built in microphones in cameras can sometimes work too.

But for the most part — ¬†an external microphone is always the better bet.

In the next few articles, I’ll talk about the various kinds of techniques and gear that video makers can use to get good sound. To begin with, some words about those built ins and why they’re not the best idea.

Stand the same distance from the person you’re going to be shooting. Ask them to talk. Close your eyes. What do you hear?

If you’re no more than a foot away, you’ll likely hear the person pretty clearly.

Step back about four feet.

When I did this yesterday, I heard:

a) the person’s voice. I had to strain because her voice was very soft. Some of the words were lost.

b) the ventilation system in the room.

c) the person sitting next to me coughed. It was loud.

d) And then an ambulance went by.

Built in camera mikes will pick up all of that sound. They are what are called “omni directional” microphones. Which means, they record everything they hear, at the same sound levels as your ears are hearing.

So, my recording picked up:

a) the main speaker. But she was very soft. I could hear her most of the time, but I was straining.

b) the sound of the constant furnace, which also masked the sound of my speaker.

c) the cough. Really loud. Ouch. My ears hurt.

d) and then the ambulance sound, which masked the cough, the furnace and my speaker.

Many video makers I talk to say that sound is one of their biggest frustrations. But it doesn’t have to be. There are many easy ways to get good quality sound from the get go, and make it sparkle in post.

Over the next few weeks, I’ll be doing series of posts about Getting Good Sound for Video.

Next in the series, choosing the right kind of microphone.

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