Converting a double data type to a signed integer

[JSlane]

The signals are from a triaxial accelerometer being tapped against a table. 

[smercurio_fc]

So why are you trying to save that to a WAV file?

[JSlane]

We are planning on putting this accelerometer on an aircraft engine to record vibration.  The data will have varying engine power settings, so the vibration frequencies will vary with time.  The Labview power spectrum VIs don't seem to be able to handle a data file where the frequencies vary.  We have other software that does, but it requires the data to be in a WAV file.

[JSlane]

Yes, we were tapping an accelerometer on a table so it would sound like clicks.  I have tried the VIs you suggested and this looks like it's going to solve the problem.  Thank you.