SRS Labs SR850 - Manual (Page 143)

MATH MENU
Math
Smooth:
Fit:
Calc:
Stats:
Fit
Smooth
MATH
Stats
Calc
Math
The Math menu is used to smooth, fit, change and analyze trace data.
Math functions only operate on the data which is displayed within the
active display.
5-33
Math Keys Each Math key activates a sub menu. Each sub menu is described in
detail in the following pages.
Math functions may only be performed on trace data which is
stored in a trace buffer and displayed in the active chart display.
Data which are not within the time window of the chart are not operated
upon. Use the horizontal chart scale to select the size of the time window
and move the cursor to pan the window to the correct portion of the trace
buffer. Data which exceeds the upper or lower bounds of the graph are,
of course, operated upon.
The amount of time a math function takes to complete depends upon its
complexity and the number of data points which are operated on. For
example, 25-point smoothing takes longer than 5-point smoothing while
each type of smoothing takes longer the more points there are. Do not
operate on more points than necessary.
Math functions can only be performed while data acquisition is stopped,
either by pausing or finishing a scan. Some math operations change the
stored trace data. Resuming a scan after smoothing, for example, will
result in a trace where a region of the trace is smoothed and other
regions are not.