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Document Type: Example Program
NI Supported: Yes
Publish Date: Sep 6, 2006


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Load and Save files with LabVIEW and the MathScript Node

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Filename: load_and_save.zip
Requirements: View

The Load and Save.vi demonstrates LabVIEW's easy to use File I/O with MathScript's built in DSP functions. You can load a file, reduce noise using low pass filters, perform FFT analysis and save the resulting filtered file.

The example uses the File Dialogue Express VI to select a .wav file and the Sound File Read Simple.vi to load in the waveform data. The WindowsStartup.wav file has been provided. The Play Waveform Express VI plays the file before the waveform data is filtered in the MathScript Node. The filtered data and the FFT waveforms are displayed on the front panel while the resulting .wave file is played using the Play Waveform Express VI. The File Dialogue Express VI prompts users to select the saved file. This file is saved using the Sound File Write Simple.vi.

Requirements


Filename: load_and_save.zip

Software Requirements


Application Software: LabVIEW Professional Development System 8.2
Language(s): LabVIEW

 
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This example program (this "program") was developed by a National Instruments ("NI") Applications Engineer. Although technical support of this program may be made available by National Instruments, this program may not be completely tested and verified, and NI does not guarantee its quality in any way or that NI will continue to support this program with each new revision of related products and drivers. THIS EXAMPLE PROGRAM IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND AND SUBJECT TO CERTAIN RESTRICTIONS AS MORE SPECIFICALLY SET FORTH IN NI.COM'S TERMS OF USE (http://ni.com/legal/termsofuse/unitedstates/us/).