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One of the earliest applications of the cepstrum was in speech analy sis, with the aim of detecting the harmonic structure of voiced sounds and measuring voice ...
4 shows a typical cepstrum obtained in this way from the sound power spectrum of an electric drill (primarily gear noise). F. Since the analyzer output voltage ...
The auto-cor- relation is mainly dominated by the highest values of the spectrum. The logarithm used when computing the cepstrum causes it to take lower level.
Calculation of sound intensity from a dual channel measurement of the sound pressure signals from two closely spaced microphones is discussed in terms of.
Chapter 7 covers dual channel FFT analysis, while. Chapter 8 covers Cepstrum analysis. In the intervening years there have been considerable developments in ...
The acceleration response of a wind turbine gearbox, tested on a back-to-back test stand of. Winergy, is used as input data to a pre-processed operational modal ...
The cepstrum liftering procedure was performed using a small desk- top calculator in conjunction with the FFT analyser, both communicat- ing over their common ...
The incorporated PULSE unit is a versatile data acquisition and pre-processing unit for noise and vibration analysis. It accepts signals via BNC/BNT connectors ...
The Overall Level Analyzer performs a broadband analysis. When measuring sound, this analyzer is equivalent to a sound level meter and fulfils selected, ...
Portable measuring instruments have the advantages of being relatively inexpensive and simple to operate and although they are limited to the measurement of ...
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