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Owning Palette: Sound and Vibration VIs

Installed With: Sound and Vibration Measurement Suite. This topic might not match its corresponding palette in LabVIEW depending on your operating system, licensed product(s), and target.

Use the Distortion VIs to perform distortion measurements.

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

Refer to the examples\Sound and Vibration directory for an example of using the Distortion VIs.

Palette Object	Description
SVL AC & DC Level	Computes the AC and DC levels of a signal.
SVT Intermodulation Distortion	Computes the total intermodulation distortion and the intermodulation components based on scaled signal [EU] and IMD standard.
SVT Phase Linearity	Computes the multitone phase of each tone in a multitone signal, the average group delay, and the max deviation of the phase from a straight line. Use a square wave or construct the input signal with component tones evenly spaced in frequency and with zero relative phase between the component tones.
SVT SINAD	Performs a signal in noise and distortion (SINAD) analysis, including measuring the fundamental tone, and returns the detected fundamental frequency, detected fundamental amplitude, and SINAD level in dB. Total harmonic distortion plus noise (THD + N) is the negative of SINAD in dB. The data type you wire to the scaled signal [EU] input determines the polymorphic instance to use.
SVT SNR without Harmonics	Performs a signal and noise analysis, including measuring the fundamental tone, and returns the detected fundamental frequency, detected fundamental amplitude, and signal-to-noise ratio (SNR) SNR (without harmonics). The SNR measurement excludes harmonics of the fundamental frequency. The data type you wire to the scaled signal [EU] input determines the polymorphic instance to use.
SVT THD and Harmonic Components	Performs a harmonic analysis, including measuring the fundamental tone and harmonics, and returns the detected fundamental frequency, detected fundamental amplitude, requested harmonic components, and total harmonic distortion (THD). The data type you wire to the scaled signal [EU] input determines the polymorphic instance to use.
SVT THD+N	Performs a total harmonic distortion plus noise (THD+N) analysis, including measuring the fundamental tone, and returns the detected fundamental frequency, detected fundamental amplitude, and THD+N. Signal in noise and distortion (SINAD) is the negative of THD+N in dB. The data type you wire to the scaled signal [EU] input determines the polymorphic instance to use.
Tone Measurements	Performs common audio quality measurements when a pure tone is the expected signal. All measurements except DC and AC level are restricted to the specified frequency range. You also can remove DC signals from all measurements regardless of the specified frequency range. Distortion measurements allow you to quantify the linearity of the audio channel based only on the input signal and include THD and harmonics, THD+N, and SINAD. Channel evaluation measurements allow you to quantify the linear range of the audio channel based on the full-scale level and include gain, dynamic range, spurious-free dynamic range, noise level, and signal-to-noise ratio.

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