On Tue, 07 Sep 2004 00:15:01 -0500, Grant Youngman wrote:
>Be curious to know how one measures the frequency response of a
>speaker with a scope and VOM?
As member of the Standards Committee of the Audio Engineering Society, I
would be equally curious.
Measuring the response of a loudspeaker requires considerably more
instrumentation than a scope and a VOM. In fact, I'm not sure how one would
make good use of a scope and a VOM. At a minimum, one needs a
sweepable audio generator, lab-quality microphone and preamplifier, time-
windowed audio measurement system, and/or a reasonably well-controlled
acoustic environment . And, of course, one must consider the directivity of the
loudspeaker -- most loudspeakers exhibit considerable directivity, and the
response on axis is very different from the off-axis response.
Jim Brown K9YC
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