LabVIEW Sound and Vibration API Reference

Frequency-Domain Measurements Express VIs

  • Updated2024-06-18
  • 1 minute(s) read

Frequency-Domain Measurements Express VIs

Owning Palette: S&V Express Measurements VIs

Use the Frequency-Domain Measurements Express VIs to perform frequency domain transformations and frequency domain analysis.

The VIs on this palette can return general LabVIEW error codes or specific sound and vibration error codes.

Palette ObjectDescription
Frequency ResponseCompares a stimulus signal and a response signal and computes the frequency response function using a fast Fourier transform (FFT). Frequency Response can return magnitude, phase, real and imaginary result signals, and coherence.
Power SpectrumComputes the averaged magnitude spectrum, power spectrum, or power spectral density for a single or multiple channels. Power Spectrum can return the spectra in root-mean-square, peak, and peak-to-peak units.
Tone ExtractionFinds the single tone with the highest amplitude or searches a frequency range you specify to find the single tone with the highest amplitude and returns the frequency, amplitude, and absolute phase for the detected tone. Tone Extraction also can return Export signals.

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