Device for detecting the current state of damage of a machine, comprising: a plurality of pressure sensors for detecting the pressure over a time period of the machine to be monitored and outputting a plurality of pressure signals, wherein the pressure signals exist in the time domain, and a data detection and processing apparatus for detecting the pressure signals from the pressure sensors and processing the pressure signals, characterized in that - the data detection and processing apparatus comprises a fast Fourier analysis device for carrying out a transformation of the pressure signals existing in the time domain into a frequency domain as discrete-time frequency spectra, - the data detection and processing apparatus furthermore comprises a spatial aggregation unit and a temporal aggregation unit, which combine the discrete-time frequency spectra, - such that temporally and spatially aggregated discrete frequency spectra are generable (3, 4; 4, 3), - wherein the application of the spatial aggregation unit and also the application of the temporal aggregation unit is performable in a different sequence on the discrete-time frequency spectra, - the data detection and processing apparatus moreover comprises a cepstrum analysis unit for generating a cepstrum with different actual cepstra values from the temporally and spatially aggregated discrete frequency spectra, wherein the data detection and processing apparatus moreover comprises a computer unit, which, from the cepstra generated thus, generates actual cepstra intervals in a predefined time interval, said actual cepstra intervals comprising a plurality of adjacent actual cepstra values, as a result of which an actual cepstrum value, which is establishable from at least three adjacent actual cepstra intervals, is generable, - wherein the data detection and processing apparatus comprises a unit which calculates an intended/actual comparison of the actual cepstrum value generated thus and an intended cepstrum value determined in advance. a plurality of pressure sensors for detecting the pressure over a time period of the machine to be monitored and outputting a plurality of pressure signals, wherein the pressure signals exist in the time domain, and a data detection and processing apparatus for detecting the pressure signals from the pressure sensors and processing the pressure signals, characterized in that - the data detection and processing apparatus comprises a fast Fourier analysis device for carrying out a transformation of the pressure signals existing in the time domain into a frequency domain as discrete-time frequency spectra, - the data detection and processing apparatus furthermore comprises a spatial aggregation unit and a temporal aggregation unit, which combine the discrete-time frequency spectra, - such that temporally and spatially aggregated discrete frequency spectra are generable (3, 4; 4, 3), - wherein the application of the spatial aggregation unit and also the application of the temporal aggregation unit is performable in a different sequence on the discrete-time frequency spectra, - the data detection and processing apparatus moreover comprises a cepstrum analysis unit for generating a cepstrum with different actual cepstra values from the temporally and spatially aggregated discrete frequency spectra, wherein the data detection and processing apparatus moreover comprises a computer unit, which, from the cepstra generated thus, generates actual cepstra intervals in a predefined time interval, said actual cepstra intervals comprising a plurality of adjacent actual cepstra values, as a result of which an actual cepstrum value, which is establishable from at least three adjacent actual cepstra intervals, is generable, - wherein the data detection and processing apparatus comprises a unit which calculates an intended/actual comparison of the actual cepstrum value generated thus and an intended cepstrum value determined in advance. - the data detection and processing apparatus comprises a fast Fourier analysis device for carrying out a transformation of the pressure signals existing in the time domain into a frequency domain as discrete-time frequency spectra, - the data detection and processing apparatus furthermore comprises a spatial aggregation unit and a temporal aggregation unit, which combine the discrete-time frequency spectra, - such that temporally and spatially aggregated discrete frequency spectra are generable (3, 4; 4, 3), - wherein the application of the spatial aggregation unit and also the application of the temporal aggregation unit is performable in a different sequence on the discrete-time frequency spectra, - the data detection and processing apparatus moreover comprises a cepstrum analysis unit for generating a cepstrum with different actual cepstra values from the temporally and spatially aggregated discrete frequency spectra, wherein the data detection and processing apparatus moreover comprises a computer unit, which, from the cepstra generated thus, generates actual cepstra intervals in a predefined time interval, said actual cepstra intervals comprising a plurality of adjacent actual cepstra values, as a result of which an actual cepstrum value, which is establishable from at least three adjacent actual cepstra intervals, is generable, - wherein the data detection and processing apparatus comprises a unit which calculates an intended/actual comparison of the actual cepstrum value generated thus and an intended cepstrum value determined in advance.