Owning Palette: Octave Extended Measurements VIs

Requires: Sound and Vibration Toolkit

Generates a table of the results of a fractional-octave analysis. The first column of the table contains the nominal frequencies in Hz. The second and subsequent columns contain the 1/n band power with the appropriate unit label. Wire data to the octave spectrum input to determine the polymorphic instance to use or manually select the instance.

Example

SVT Build Result Table (1 Octave Spectrum)SVT Build Result Table (N Octave Spectra)

SVT Build Result Table (1 Octave Spectrum)

octave spectrum specifies the octave spectrum to perform the operation on, in band power versus nominal frequencies.
nominal frequencies [Hz] specifies the nominal, or preferred, frequencies as opposed to the exact frequencies associated with each 1/ n octave band.
band power specifies the band power in decibels associated with each 1/ n octave band.
precision specifies the number of digits to display after the decimal point. The default is 1 digit.
octave info specifies octave information generated by the octave spectrum and needed by the Octave Extended Measurements VIs and the Display VIs.
Note You must wire octave info when performing extended measurements. Do not modify the octave info values. If you want to view the information, you can right-click the octave info wire and select Custom Probe»Octave Info from the shortcut menu.
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
include units with values (T) includes units with values in the table.
result table returns a table that contains the nominal frequencies in the first column and the 1/n octave band power in the second column.
column headers returns the column headers.
error out contains error information. This output provides standard error out functionality.

SVT Build Result Table (N Octave Spectra)

octave spectra specifies the octave spectra to perform the operation on, in band power versus nominal frequencies.
nominal frequencies [Hz] specifies the nominal, or preferred, frequencies as opposed to the exact frequencies associated with each 1/ n octave band.
band power specifies the band power in decibels associated with each 1/ n octave band.
precision specifies the number of digits to display after the decimal point. The default is 1 digit.
octave info specifies octave information generated by the octave spectrum and needed by the Octave Extended Measurements VIs and the Display VIs.
Note You must wire octave info when performing extended measurements. Do not modify the octave info values. If you want to view the information, you can create a custom probe.
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
include units with values (T) includes units with values in the table.
result table returns a table that contains the nominal frequencies in the first column and the 1/n octave band power in the second and subsequent columns.
column headers returns the column headers.
error out contains error information. This output provides standard error out functionality.

Example

Refer to the Present Octave Results (DAQmx) VI in the labview\examples\Sound and Vibration\Octave Analysis directory for an example of using the SVT Build Result Table VI.

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