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Booming, Mic Choices and HDV Audio – Tutorial
Hi,
I was recently asked bout using an interference tube, shotgun mic and HDV audio for an interior two shot. If you have any additional suggestions, please do toss in.
1. Your shotgun is not the mic to use. For normal interiors you don’t want an interference tube mic. The Audix scx-1 with hypercardioid capsule, Audio Technica 4053a and Schoeps cmc641 — from low to high, in that order, will sound a lot better than your shotgun.
You don’t talk about the acoustics of the space, but there’s a world of difference between audio captured in a hard-surfaced kitchen and a comfy den.
2. You say two people talking at the same time. I’m thinking you probably don’t mean that unless this is some sort of special situation. Normally people talk sequentially. If these people are close enough to each other, then you can get the best audio with a boom and operator who knows how to follow dialog.
If the talent is farther apart, two locked down booms will will work if the talent doesn’t move. In a dramatic scene, this is not likely. In any case, be careful of head turns or looks to the floor while lines are given.
If there’s a lot of motion — too much for a good boom person to stay with, you have to go to lavs, each to a separate track, then combine in post.
As to the HDV audio issue; I’m an audio guy, first. 384 kbps mpeg stereo audio grinds my grits. Why, when the baseline for audio quality for digital audio has been 24-bit, 48 or 96 kHz sample rate PCM for quite a while now, the committee thought mpeg audio at 1/5 the rate of even 16-bit 44.1 kHz was a good idea is a travesty to me.
Yes, there will be a difference if you double record. When you (well me anyway) hear 24-bit audio captured well, I can hear the power, detail, and texture. Get the latest Pirates of the Carribbean film and listen to the interior dialog with a really good set of headphones. Very sweet. Mpeg audio loses that.
The difference will be mitigated to some degree by the audio gear you use and how you use it. If it’s not going up for an academy award, and you pay very close attention to the audio, ::sigh::, you’ll probably be OK. What’s important is that you know there’s better. As always, I encourage you to make it sound as good as possible.
Regards,
Ty Ford
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