Octave testing is an indispensible element of acoustics and vibration engineering, and part of many noise evaluation tests against predefined targets or legislative standards. The LMS platform supports octave testing for the largest variety of test scenarios. Whatever your needs are, LMS offers an easy-to-use and powerful platform for acoustic qualification testing.
The broad analysis and application range of the LMS Octave Testing solutions includes:
- Low or high channel count octave analysis
- Real-time or off-line analysis
- Analysis of stationary, transient or tracked against RPM or speed events, in parallel with narrow band FFT analysis
- Octave analysis with parallel throughput
- Full 1/1 octave up to 1/24 fractional octaves
- Extensive sound level meter functionalities
With LMS Octave Testing, acquisition and analysis of multi-channel octave data is made easy. It provides linear and exponential averaging methods for acquiring octave data in stationary or transient operating conditions, against specified time or rpm intervals, and for monitoring dynamic, static and operational parameters. It provides online acquisition and visualization of the most important functions such as octave cuts, overall sound pressure levels, or equivalent sound pressure levels (Leq). Calculations from physical measured channels using mathematical operations are provided by the online derived mathematical channels.
The LMS Test.Xpress platform is the ideal solution for troubleshooting acoustics problems. All basic sound level meter functionalities like sound pressure level, Leq, SEL, Lpeak or Ln with the different acoustical weighting and time constants can be calculated in parallel. In addition, the reverberation time measurements (T60) serve as base for qualification according to ISO standards like ISO 140, ISO 354, ISO 717.
The LMS Test.Lab platform is meant for in-depth sound engineering. It includes further functionalities to enhance ease-of-use and analysis flexibility. The data block calculator supports straightforward mathematical operations on individual octaves blocks. The LMS Test.Lab Signature Data Post-processing option helps analyze and post-process complete waterfalls of tracked octave data. It contains a comprehensive list of functions for further processing like e.g. waterfall averaging and calculating octave sections.
UTAC, a leading company in testing and certification services, deployed LMS Test.Lab in its environmental laboratory for acoustic testing, citing its testing speed, engineering capabilities, precision, and ease of use as key differentiators. UTAC estimates that testing campaigns run with LMS Test.Lab deliver a 30% time gain compared to tests with other tools. Thanks to LMS Test.Lab, UTAC can offer its customers a precise diagnosis of acoustic problems.
Arctic Cat is one of the early pioneers in the power sports industry and has firmly established itself as a leading manufacturer of these vehicles. Plans are to double its international business over the next three years, and for the first time ATV sales now account for more than half of the company’s total sales. Unlike competitors seeing flat sales or downturns, Arctic Cat has continued to gain market share in the ATV segment every year since it started selling these popular vehicles.
