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Load/Save Signals Express VIs

Owning Palette: S&V Express Measurements Express 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 Load/Save Signals Express VIs to import or export data from ASCII and LVM files; and read and write data to UFF58 files.

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

Palette ObjectDescription
Load from ASCII (Frequency Domain)Imports data from an ASCII file.
Load from ASCII (Time Domain)Imports data from an ASCII file.
Load from LVM (Frequency Domain)Imports data from a text-based measurement file (.lvm).
Load from LVM (Time Domain)Imports data from a text-based measurement file (.lvm).
Load from UFF58Performs all the file operations necessary to read selected functions of the specified type from a single UFF58 (universal file format) file where the data is stored in ASCII (UFF58) or binary format (UFF58b). This step supports time waveforms and real-valued frequency spectra.
Save to ASCII/LVMSaves a signal to an ASCII file or a text-based measurement file (.lvm). Because the .lvm file format is designed to never overwrite the initial header information, Save to ASCII/LVM only writes the header information to the .lvm file the first time you run. If you run again, Save to ASCII/LVM does not update the header information, only the subhead information.
Save to UFF58Performs all the data and file operations necessary to write time signals or real-valued spectra to a file formatted according to the UFF58b (universal file format binary) format. You then can import this file in a number of common sound and vibration applications to perform additional analysis. You can write time and real frequency measurements such as coherence, power spectrum, and power spectral density. If a frequency spectrum is in decibels, this step converts the spectrum to linear before writing to the UFF58 file. This step does not support writing complex frequency measurements.

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