Re: graphing a live sound curve

genericaudioperson <genericaudioperson@xxxxxxxxxxx> wrote:
Mr. Dorsey brought up something interesting. He was talking about
making a graph of a live sound system's frequency response, so you
know where the resonant peaks are. (I believe the idea being that you
will notch those frequencies on a 1/3 octave eq or a parametric)

Do you do this graph by running sine wave cd tracks at 1/3 octaves and
writing down the numbers an SPL meter reads in the center of the
auditorium?

You do it with your head. You listen to the system, you hear what it
sounds like. If it rings, you take note of what pitches it's ringing at.

If you play back a sweep track and walk around, you can hear all KINDS of
things. There's no reason to measure it because you can hear where the
problems are and what frequencies they are at.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."
.

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