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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 Sound Quality VIs to perform sound quality measurements, including stationary loudness, time-varying loudness, sharpness, roughness, fluctuation strength, and tonality.

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 Sound Quality VIs.

Palette Object	Description
SV Aures Roughness	Computes roughness of the sound pressure signal according to Aures' method. Roughness is a hearing sensation related to loudness modulations at frequencies too high to separately discern, such as modulation frequencies greater than 30 Hz.
SV Aures Sharpness	Computes sharpness from the sound pressure signal waveform, the 1/3-octave band spectrum calculated over the frequency range 25 Hz to 12.5 kHz, or the specific loudness that the SV Stationary Loudness VI returns. Sharpness is a hearing sensation related to frequency and independent of loudness. Wire data to the sound pressure signal input to determine the polymorphic instance to use or manually select the instance.
SV Aures Tonality	Computes tonality of the sound pressure signal according to Aures' method on successive 160 ms blocks. Tonality measures the relative strength of the tones in a signal compared to the overall signal.
SV Fluctuation Strength	Computes fluctuation strength of the sound pressure signal from a pressure-time history. Fluctuation strength is a hearing sensation related to loudness modulations at low frequencies that are individually discernable.
SV Stationary Loudness	Computes stationary loudness from the sound pressure signal waveform or the 1/3-octave band spectrum calculated over the frequency range 25 Hz to 12.5 kHz. Wire data to the sound pressure signal input to determine the polymorphic instance to use or manually select the instance.
SV Time-Varying Loudness	Computes time-varying loudness of the sound pressure signal from a time-varying 1/3 octave band spectrum.

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