LMS Test.Lab Time Domain Transfer Path Analysis is a solution to identify transfer paths in the time domain. This solution provides accurate identification of transfer paths related to a specific event in the time domain. Compared to frequency domain TPA, the LMS Test.Lab Time Domain TPA lets engineers analyze transient phenomena. Users can listen to the partial path contribution and compare it to the target sound. The path contributions are not reflected as spectra but as time-domain contributions. These contributions can then be used for further analysis, such as signature throughput processing. Any processing can be applied to the partial path contribution, such as acoustic metrics.
Time domain TPA analyses can be applied to various phenomena. It is particularly useful to understand phenomena of transient excitations (engine start-up), semi-stationary excitations (idle noise) as well as analyze any other signal for which it is crucial to listen to the produced sounds. The solution can further be used to make a detailed modulation study.
Time domain TPA complements frequency domain TPA. While frequency domain TPA gives a better overview on vibro-acoustics issues, time domain TPA provides users with more detailed information about transitory occurrences and offers time domain pre- and post-processing.
LMS Test.Lab Time Domain Transfer Path Analysis is a fast and easy-to-use solution for analyses on transient events and offers users a wide range of load identification techniques.
