Noise, vibration, audio signal processing

These analysis and signal processing tools are designed for measuring noise, vibration and harshness (NVH); machine condition monitoring; and audio test applications.


NI Sound and Vibration Measurement Suite Version 7.0
The NI Sound and Vibration Measurement Suite Version 7.0

extends analysis functionality with NI LabVIEW virtual instruments (VIs) for

performing psychoacoustic measurements, making it possible for engineers to

quickly set up tests to quantify sound quality. Additionally, National Instruments

announced the NI USB-4432, a portable bus-powered dynamic signal acquisition

module for making high-accuracy sound and vibration measurements.

The Sound and Vibration Measurement Suite 7.0 supports

full-featured sound quality analysis, so engineers can ensure high-quality

acoustics in their designs. The LabVIEW VIs in the Sound and Vibration

Measurement Suite also contain octave analysis, frequency analysis and order

tracking for automotive, military and aerospace and mechanical and structural designs.

Engineers quickly and efficiently can get their applications started with the

configuration-based Sound and Vibration Assistant or with more than 50

ready-to-run LabVIEW example code bases provided in the Sound and Vibration

Measurement Suite.

The Sound and Vibration Measurement Suite is ideal for

machine monitoring, machine health and machine efficiency applications.

Engineers can develop applications faster by using examples for tachometer

processing, order spectra and waterfall plots. The Sound and Vibration

Assistant now includes new machine monitoring displays to quickly configure

machine diagnostic utilities. The new displays provide diagnostics for motor

balance and shaft position in addition to more traditional order analysis


The USB-4432 delivers 108 dB of dynamic range to properly

capture high-frequency, low-amplitude vibrations in the presence of

low-frequency, high-amplitude signals. The module consists of four analog input

channels for reading from integral electronics (IEPE) sensors and a fifth

channel for tachometer input. The five channels simultaneously acquire at rates

up to 102.4 kS/s, extending the frequency bandwidth and performing

higher-frequency readings than other NI USB solutions. In addition, the

USB-4432 features configurable ac/dc coupling to allow for a variety of

vibration sensors on each channel, making it ideal for a wide range of portable

applications such as machine condition monitoring and NVH.



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