Patent Document ID: 20090241758
Application ID: 12398707
Patent Status: 0

Claim One:
1. A method for sound-object oriented analysis and for note-object oriented processing of a polyphonic, digitized sound recording which is present in the form of a time signal F(A, t), comprising the following analytical and processing steps: Portion-wise readout of the time signal F(A, t) using a window function and overlapping windows, Fourier transformation of the readout signal into the frequency space, in particular by carrying out a discrete Fourier transformation, Calculating from the frequency amplitude, an energy value E for each bin, said amplitude resulting from the Fourier transformation, in particular by squaring the real and imaginary parts or an energy value derived therefrom, Generating a three-dimensional function F(t, f, E) from the frequency amplitude), Identifying event objects, Identifying note objects, Comparing the occurrence in time of event objects and note objects and associating event objects with note objects in the case of plausible occurrences in time, Calculating spectral proportion factors for each note object, Associating signal portions of the frequency signal F(f, t, E) with detected note objects using the calculated proportion factors, Inverse transformation of the frequency signal portions associated with a note object into a time signal, Graphically represent the note objects and/or event objects as a time/frequency display on a monitor, User controlled or automated processing of one or more note objects, Storing the time signals of processed note objects, Reproducing the stored time signals of processed note objects jointly with the time signal which is reduced by a time signal associated with a note object.