Need HELP! Sweep frequency using Sound and Vibration Assistant

Hi,
I'm new to LabView . I want to do frequency sweep test using Sound and Vibration Assistant. I added the sweep step and chose sin wave frequency as the parameters. I selected frequency from 1K hz to 10k hz with an increment of 500hz.
However, I do not know how to stay at one frequency for a while when sweeping the frequency. I hope there will be 200 cycles ( or 5 minutes) at one frequency in order to get steady result.
Could anyone tell me how to set this? Thank you!
Yue

Thank you for your reply!
I am using a shaker connected to the amplifier. Attached please find the plots.
Lena
Attachments:
2015-03-27 17.16.47.jpg ‏2650 KB
2015-03-27 17.13.52.jpg ‏2657 KB
2015-03-27 17.17.23.jpg ‏2326 KB

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Need help with problem using sound and vibration examples. question repost

I am generating a wav file using the sound and vibration example vi "SVXMPL_Wav Recorder(DAQmx)" using a ni 7422 board. Then, using the example vi SVXMPL_Getting started with SVT(Simulated)" attempting to play back that file. the wav file will load and play back on the graphs fine but when I click the "Play Wav File" which sends the audio to the computers speaker, I get the error "Cannot recognise sound Format". It plays the shipped example files fine. I can also play the wav files I generate on a Windows audio player. Don't know a lot about the sound and vibration toolkit or wav file formats but need to get these two to work together. Using LV 8.5 and sound and vibration toolkit 4.0. This is a bit of a repost of the same question ask last week but not answered. Thanks

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If you have LabVIEW, you can create a user step to perform the conversion in version 7.0. Sound and Vibration 2009 has a checkbox in the Frequency Response configuration page to export the real and imaginary components. Short of upgrading SVT, you can also install the evaluation version of NI LabVIEW SignalExpress 2009, and this will also upgrade the Frequency Response Step which is shared between the two products (but then you don't get all the other features that were also added in SV 2009).
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Octave Average.vi ‏13 KB
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Hello Jake,
Thank you for responding to my post. After recording the raw sound pressure data from my microphones, I placed an Octave Analysis step and a Power Spectrum analysis step in the playback section of SVA, and the outputs of these steps should have served as inputs to the VIs I created (I assume you only looked at the power spectrum averaging VI, as the octave averaging VI accepts a 1D array of clusters of center frequencies and band powers). I did find that my averaging VIs did not have the correct size of empty array going into the second For loop, so I have corrected this in the attached VI (for averaging the FFT).
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Hello All,
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Attachments:
EditTDMS (1).vi ‏14 KB
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Frequency response - sound and vibration

Hi,
I need to find the frequency response of the DUT. I am using the NI example from sound and vibration toolkit to do
so (LabVIEW 8.5\examples\Sound and Vibration\Getting Started\SVXMPL_Getting Started with Swept Sine (DAQmx).vi) now my problem is
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Attachments:
DAQ Freq resp (req)_trial.vi ‏121 KB

What is the DAQ card you are using for executing this Frequency Response?
This DAQ error is related to the output frequency of your signal higher than the possible output rate of the card. Basically, you are trying to update at a rate higher than the capability of the card.
For doing Frequency response, generally you need to have a NI DSA card (446x/447x/449x) with one Analog output and two analog inputs (minimum). Generate the swept sine signal from the Analog output channel, give this signal as input to your DUT and also to one of the Analog input channel. This input to your Analog input channel will act as your Reference signal. Then the response signal from your DUT, connect it to another Analog input channel. You would get a very good response results.
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SK,
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Message Edited by Ravens Fan on 07-25-2009 01:35 AM

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LabVIEW: The software installed on this computer does not support the file format you requested. The Storage VIs access files through plug-in libraries LabVIEW and DIAdem install. Visit ni.com to download the library you need.
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Need help finding Sound and Vibration Toolkit Example Files

I need help finding some Sound and Vibration Toolkit Example Files?
http://www.ni.com/white-paper/3779/en
From this link you get: getting_started_otb.llb
The missing files are:
OAT Truncate Time Indices.vi
Speed profile.ctl
oa_Config Time or RPM Segment.vi
svl-Complex Datatype Default.vi
Running Windows 7, LabVIEW 2011, 32bit
Sound and Vibration Measurement Suite
Sound and Vibration Toolkit
Thanks,
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Solved!
Go to Solution.
Attachments:
License S and V.png ‏4 KB

SS,
You can find these files here:
C:\Program Files (x86)\National Instruments\LabVIEW 2011\vi.lib\addons\Sound and Vibration\Order Analysis\Resample Order Tracking\SubVIs
C:\Program Files (x86)\National Instruments\LabVIEW 2011\vi.lib\addons\Sound and Vibration\Order Analysis\Tach Process\SubVIs
C:\Program Files (x86)\National Instruments\LabVIEW 2011\vi.lib\addons\Sound and Vibration\Order Analysis\Resample Order Tracking\SubVIs
svl-Complex Datatype Default.vi changes to svc-Complex Datatype Default.vi
C:\Program Files (x86)\National Instruments\LabVIEW 2011\vi.lib\addons\_NISVFA\_Shared subVIs\Common
Make sure you are license activated, and you will have to dig through the *vi and relink a subvi.
Then you should get a white arrow.
-SS

Need HELP! Sweep frequency using Sound and Vibration Assistant

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