Performing Third-Octave Analysis outside the Audio Range (Sound and Vibration Measurement Suite)
Sound and Vibration Measurement Suite 6.0 Help
December 2007
NI Part Number:
372416A-01
»View Product Info
December 2007
NI Part Number:
372416A-01
»View Product Info
You might need to perform third-octave analysis on signals outside of the 20 Hz–20 kHz range. For example, you might need to evaluate human exposure to whole body vibration with potential signals of interest in the 0.5 Hz–80 Hz range. To perform third-octave analysis outside the 20 Hz–20 kHz range, use the SVT Fractional-octave Analysis VI and select a bandwidth equal to 1/3 octave, as illustrated in the following block diagram.
The Octave Analysis VIs accept numeric values for the low-frequency and high-frequency limits and enable the measurement of signals outside the 20 Hz–20 kHz range.