3d plot

[BCho]

Hey AG2,

I myself am not very experienced with the sound and vibration VI's. However, the error message that you are seeing seems pretty descriptive. It looks like this particular error has to due with the nature of the signal you are giving the Xoom FFT spectrum VI. What happens if you modify your signal to match the suggestions in the error message?

[AG2]

Yep, it worked. Thank you. I'm currently using the mathscript function to convert voltage to pressure and the source is a double (64 bit real) and the sink is waveform (DBL). The fft of this signal will be taken. 

Thank you in advance. 

[AG2]

Never mind, I figured it out.

[AG2]

How would you convert cluster of 3 elements to dynamic data? I've attached my VI for reference.

[The_Chancenator]

Hi,

There is an express VI called "to dynamic data" that would be helpful for you, as would the Using Dynamic Data LabVIEW help article.  As you can see, you have different options for input into this function; your cluster will need to be one of these type.  You can unbundle the cluster and invidually convert each part of your cluster if you'd like.  Is there any particular reason that you would like to convert it to dynamic data? 

Also, please create a new post when you have new questions, it helps others who are searching the forums find the answers they are looking for. 

[AG2]

I want to output the data from the spectral measurements into a text file as well as the peaks of signal with its respective frequencies.

[AG2]

Hi, 

I've created a VI that takes in a .wav file and filters the time domain signal (butterworth filter - 20 to 10kHz and time averaging signal). I want to take the FFT and output the time, frequency and magnitude values into a file that I can import using matlab for further analysis. And, the voltage is converted to pressure using MATH script. I'm getting an error that is shown below. But, the sound format is a wave file so it should accept it. I've attached my VI and wave file. 

Possible reason(s):

LabVIEW:  (Hex 0x12CA) Cannot recognize sound format.

Thank you! 

[AG2]

I figured out the problem with the wave file, but I would like to export the data (time, frequency and magnitude) to matlab. So, my VI contains a 'write to measurement file', but do i need to create an array of 3 elements (time, frequency and magnitude) and merge signals to the its VI express. I've modfied my VI from before so I've attached the new one here.

[Vivek_N]

For any new questions, please create a new thread. This makes it easier for others to find relevant discussion forum posts through the title of the post. Thank you!