Dayton Audio OmniMic V2 Precision Measurement System User Manual
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can be included. In snapshot files, a text note can also be added. FRD files or properly
formatted ".txt" files can be loaded back into the Frequency Response plot.
Up to 20 saved "Added" Frequency Response curves can be displayed on-screen, and can be
individually offset in decibels from their saved levels. Their line thickness can be set
narrrow or thin, and they can have another response from a saved file applied to further shape
them ("Filter") or to unshape them ("Normalize"). Normalizing a curve by its own file will give
a flat line.
Added Curves can also be associated with a "measurement angle" (and will try to infer this
angle from the file name). This is to allow easy configuration of
You can also select the color of the curve, whether to show phase or dB (or both), and the
frequency range over which to display each Added Curve.
The full set of curve filenames, along with their individual offset values (and any assigned
measurement angles values) can be saved into a Curve List for easy retreival to the OmniMic
screen. The first two curves specified can be used frequency response limit testing
(see
You can alter the thickness of the displayed "live" Frequency Response curve by toggling
(left-clicking) the small button that is just to the right of the "OmniMic" logo at bottom left of
the graph. Right-clicking the button will change the thickness of the saved
or
curves.
The "Main Math" menu allows the llive Frequency Response curve to also have a Filter or a
Normalizing response applied from a saved file. It can be evaluated for Pass/Fail testing
(which checks whether the curve lies between the first two curves in the "added" curve list). Or
it can be offset vertically or have its shape inverted. Curves saved with these applied will have
the effects included in the saved file.
There are also a number of additional
including phase responses,
color polar displays, and watefall decay plots.