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LabVIEW Sound and Vibration Toolkit 2026 Q3 Known Issues

Created Jul 27, 2026

Overview

This document contains the LabVIEW Sound and Vibration Toolkit known issues that were discovered before and since the release of LabVIEW Sound and Vibration Toolkit 2026 Q3. Known issues are performance issues or technical bugs that NI has acknowledged exist within this version of the product.

 

Not every issue known to NI appears on this list; it is intended to show the most severe and common issues that you may encounter and provide workarounds when possible. Other technical issues that you may encounter could occur through normal product use or system compatibility issues. You may find more information on these issues in NI’s Product Documentation, Knowledgebase, or Community; see Additional Resources.

Bug Number

Legacy ID

Description

Details
410911 632043

Continous Sweep THD VI takes too long to execute when max harmonic is high

Continuous Sweep THD VI takes too long to execute when max harmonic is high.

Workaround:

1. Sample faster.

2. Break the sweep into two segments (high and low frequency) and decrease the maximum harmonic for the high frequency sweep.

3. Parse the acquired waveform and perform explicit resampling to angular domain (see Continuous Sweep* (Advanced) example VI). Explicitly maintain multiple resampled signals (each with appropriate sampling for the frequency resolution).

Reported Version:

S&V Measurement Suite: 2016

Resolved Version:

N/A

Added:

Apr 25, 2017
271310 647760

Geometric imperfection compensation in Torsional Vibration API removes integer order torsional vibration components

Workaround:

There is currently no known workaround for this issue.

Reported Version:

S&V Measurement Suite: 2017

Resolved Version:

N/A

Added:

N/A
1044289

Opening Any SVT Executable on a Target Computer Causes Errors

When you open an executable that includes SoundVib_MCM Examples.lvlib on a target computer, the executable errors out due to a missing dependency, LVASPT_TFA.dll.

Workaround:

In Application Properties, in the Source Files category, add LVASPT_TFA.dll to your application as Always Included in the build configuration, as shown below. The LVASPT_TFA.dll file is located in the C:\Program Files (x86)\National Instruments\LabVIEW 20xx\resource\ folder.

AlwaysIncluded_DLL.png

Reported Version:

LabVIEW Sound and Vibration Toolkit: 2021

Resolved Version:

N/A

Added:

Jul 17, 2023
2432236

"File Not Found Error" Occurs When the SVFA API Is Used with Appbuilder

Some of the Sound and Vibration Toolkit Frequency Analysis (SVFA) VIs cause Application Builder to fail generating an application. Note that you can still use Application Builder with SVT (Sound and Vibration Toolkit) to build applications that do not use SVFA.

This issue occurs with SVT decoupled versions on LabVIEW 2022 and LabVIEW 2023. Application Builder fails with the following message: 

LabVIEW cannot find a file that is a dependency of a Startup, 
Exported, or Always Included VI.
 
File Not Found: C:\Program Files\National Instruments\LabVIEW 2022\ 
vi.lib\addons\_NISVFA\_Shared subVIs\Spectrum Averaging\svfa_Average 
Array (complex) No State.vi

The missing file might be referenced by one of the libraries 
included in the build or by the file - Multifunction FFT 
(Simulated).vi. To fix this issue:
 
- Open all Startup, Exported, or Always Included VIs, recompile 
them (CTRL+SHIFT Click the Run arrow) and save them to update their 
dependencies.


Workaround:

To build applications with SVFA, copy the Spectrum Averaging folder from 
C:\Program Files\NI\LVAddons\nisvt\1\vi.lib\addons\_NISVFA\
_Shared subVIs\Spectrum Averaging
to the following path: 
C:\Program Files\National Instruments\LabVIEW 20xx\vi.lib\addons\
_NISVFA\_Shared subVIs\

Reported Version:

LabVIEW Sound and Vibration Toolkit: 2023 Q3

Resolved Version:

N/A

Added:

Jul 17, 2023

Final Time Issue Listed

Issues found in this section will not be listed in future known issues documents for this product.

There are currently no issues to list.

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Glossary of Terms

 

  • Bug ID - When an issue is reported to NI, you may be given this ID or find it on ni.com.  You may also find IDs posted by NI on the discussion forums or in KnowledgeBase articles.
  • Legacy ID – An older issue ID that refers to the same issue.  You may instead find this issue ID in older known issues documents.
  • Description - A few sentences which describe the problem. The brief description given does not necessarily describe the problem in full detail.
  • Workaround - Possible ways to work around the problem.
  • Reported Version - The earliest version in which the issue was reported.
  • Resolved Version - Version in which the issue was resolved or was no longer applicable. "N/A" indicates that the issue has not been resolved.
  • Date Added - The date the issue was added to the document (not the reported date).