Setting the Transform Plot Properties of Data Sets

3D profile type

Selects the type of three-dimensional display.

F-X spectra surface

The auto- or cross-spectra plotting frequency vs. spatial dimension.

3D spectra surface

The auto-spectra on 3D geometry for a given frequency.

Output field

Selects which kind of FFT information to visualize.

Re{FFT Coefficients}

The real parts of the FFT coefficients.

Im{FFT Coefficients}

The imaginary parts of the FFT coefficients.

Power Spectral Density (Pa^2/Hz)

Frequency-domain description of the signal power.

Power Spectral Density (dB/Hz)

Sound pressure in decibels per hertz. Adds the Reference Sound Pressure node.

Phase{FFT Coefficients}

The phases of the FFT coefficients ($atan[Im/Re]$).

Abs{FFT Coefficients}

The absolute values of the FFT coefficients ($\sqrt{{|\mathrm{Re}|}^2+{\left|Im\right|}^2}$).

Sound Pressure Level

Sound pressure in decibels. Adds the Reference Sound Pressure node.

A-Weighted Sound Pressure Level

Weights the Sound Pressure Level with the A-scale function, for loudness less than 55 phons (at 1000 Hz, 1 phon = 1 dB). This function is typically for problems that involve the frequency range for human hearing. Adds the Reference Sound Pressure node.

B-Weighted Sound Pressure Level

Weights the Sound Pressure Level with the B-scale function, for loudness of 55-85 phons. Adds the Reference Sound Pressure node.

C-Weighted Sound Pressure Level

Weights the Sound Pressure Level with the C-scale function, for loudness greater than 85 phons. Adds the Reference Sound Pressure node.

Root Mean Square

The square root of the Power Spectral Density.

Log data

Displays the log of current data in the current scene or plot.

Activated

Log displayed.

Deactivated

Log not displayed. The default.

2D profile range

Defines the two-dimensional profile.

All

Uses all signal frequencies.

Value

Uses a single value frequency. Adds the Single Value child node to this node.

Band

Uses a band of frequencies. Adds the Single Band child node to this node.

2D profile axis

Defines the two-dimensional profile.

Spatial axis

The abscissa is in length units.

Frequency axis

The abscissa is in frequency units.

Slider Value

Determines the current display time. The slider can vary from the maximum to the minimum time of the current signal.