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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 Level VIs to perform sound-level measurements, including linear, exponential, and peak hold averaging. Linear averaging is also known as equivalent continuous sound level, or Leq.

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 Level VIs.

Palette Object	Description
Sound Level	Performs sound level measurements, including linear, exponential, and peak hold averaging for a single channel or N channels. You also can apply A-, B-, or C-weighting to the time-domain signals.
SVL Decimated Exp Avg Sound Level	Computes the exponential averaged sound level of scaled signal [EU] based on exponential mode, decimates this sound level by decimation factor, and returns the result in decimated exp avg sound level [dB EU]. The data type you wire to the scaled signal [EU] input determines the polymorphic instance to use.
SVL Exp Avg Sound Level	Computes the exponential averaged sound level of scaled signal [EU] based on exponential mode and returns the sound level for the signal in exp avg sound level [dB EU]. The SVL Exp Avg Sound Level VI returns the exponential average sound level computed after each individual sample of the time record. The data type you wire to the scaled signal [EU] input determines the polymorphic instance to use.
SVL Leq Sound Level	Computes the equivalent continuous sound level (Leq) of scaled signal [EU]. The data type you wire to the scaled signal [EU] input determines the polymorphic instance to use.
SVL Peak Sound Level	Computes peak sound level [dB EU] of scaled signal [EU]. The data type you wire to the scaled signal [EU] input determines the polymorphic instance to use.
SVL Running Leq Sound Level	Computes the running equivalent continuous sound level (Leq) of scaled signal [EU]. A new running Leq value is returned each time you call this VI. The data type you wire to the scaled signal [EU] input determines the polymorphic instance to use.
SVT Sound Level	Allows you to compute several sound level measurements including equivalent continuous level (Leq), running Leq level, exponential averaged level, and/or the peak level of scaled signal [EU]. The data type you wire to the scaled signal [EU] input determines the polymorphic instance to use.

Subpalette	Description
Weighting VIs	Use the Weighting VIs to apply a weighting filter on time-domain signals sampled at specific rates. You can choose from acoustic, telecommunication, and radiocommunication filters.

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