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Re: level setting

Subject: Re: level setting
From: Curt Olson <>
Date: Thu, 7 Apr 2005 12:35:01 -0500
Rich Peet wrote:

> I guess I was not clear enough in what I need. I have moved from
> multichannel laptop recording using de-correlated wide spaced
> microphone arrays to coherent full immersion surround recording.
>
> The results are wonderful and very direction accurate in a full 360
> degree field. But when I setup I need to define reference levels for
> each channel that I can see for use in post production.  This is
> needed to keep the immersion direction accurate.
>
> I can not point the mic at the sky, can not use a small radio as the
> volume changes as it is turned, and can not carry studio equipment
> into the field. I already carry 25 lbs into the field for a 3 hour
> record capability at 24/96 or 10 lbs for 16 bit atrac full day
> capability. Right now I am just setting levels based on a hold of the
> minimum valley gain and maybe that is good enough with a good quantity
> of material
>
> I am starting to think that accurate level settings are not done in
> the music industry except by ear.

That depends on who's at the controls and how well they understand
what's going on in the signal chain.

Here's one cheap, light weight possibility: how 'bout an old-style
mechanical kitchen timer on top of the box, right in the middle,
resting on a bit of foam? Tick... tick... tick... tick... approximately
equal in all four mics, I would think.

I'm anxious to hear how that array of yours sounds!

Curt Olson



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