This page refers to a type of 3D graph representation, for the 2D floating column diagram showing increases and decreases, see waterfall chart.
A Waterfall plot is a three-dimensional plot which shows grid lines for only one of the axes. The result is a series of "mountain" shapes that appear to be side by side, resembling a waterfall. The waterfall plot is often used to show how two-dimensional information changes over time or some other variable. The term waterfall plot is sometimes used interchangeably with spectrogram
Example
This example image shows a spectrograph of the phrase "They got to the mall". Notice how there are grid lines for the time, but not for the frequency. Waterfall graphs are commonly used in this way for spectrum analysis as they show how frequency impulse (2 dimensional information) varies with time.
Uses
- Waterfall plot's are often used to show the results of spectrum analysis, showing frequency impulse vs. time.
- Waterfall plot's are often used to show the delayed response from a loudspeaker or listening room produced by impulse response testing or MLSSA.
- Waterfall plot's can be used to show the frequency impulse for different engine speeds when testing engines.
See also
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