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Real-Time Measurement System Detecting Tonal Components and Determining Their Audibility in Environmental Noise

The presence of tonal components in a sound signal usually increases its annoyance but their detection and proper qualification is not always unambiguous. Despite the relatively easy recognition of a tonal noise, its objective identification and tonality measurement is much more difficult. The identification and classification of tonal components presence in measured noise is described in the standard ISO/PAS 20065:2016(E). In this paper authors introduce a system that was created in LabVIEW environment. The main objective was to develop the easy to use system running in real-time, which is capable to perform automatic calculations based on ISO/PAS 20065:2016(E).

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