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Test the i/o device
Start by testing the i/o device (soundcard). Get a cable (p2 plug to p2 plug) and
connect the first output to the first input of the i/o device (line out to line in).
Go to Options: Hardware and choose the type of your i/o device.
Go to Tools: In/Out hardware: Duplex and test if your i/o device can play and
record at the same time.
Follow the program′s advice about also determining the real sampling rate of the
i/o device and its time delay.
Remove the test cable and connect the desired sensors (mic) and speakers or shakers.
Go to Options: Input and Options: Output and set your hardware.
If you have the
transfer functions of the hardware, copy and edit an example transfer function file
in vibrotoolbox_pathilters and add the information of your hardware. Then set the
transfer function in Options: Input.
Go to Options: Stimulus: Tones and set the stimulus.
Go to Options: Calibration and set the appropriate parameters.
Click on the Calibrate button in the main window.
Go to Options: Points to define the number of recordings that will be stored in
the data file. Use the builder to create specs for repeated measurements, positions or
Click on the Record button in the main window.
After recording, go to Process Data: Measure current data.
Go to View, to change between viewing input or output, amplitude or phase and
raw or measured data. Click on each point to see its data.
Right-click on a plot to export its data.
Filter files using a transfer function
Go to Tools: Filter files, to load a transfer function, build a filter based on it
and apply the filter to a folder containing .wav files.
Do not forget
To know what you are doing, read the manual and some books on acoustics!!!
Copyright (c) 2011 Marcos Gridi-Papp.
All documentation licensed
under the GNU FDL License.