Patent Document ID: 8022286
Application ID: 12398707
Patent Status: 1

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: creating a readout signal of the time signal F(A, t) using a window function and overlapping windows, carrying out a Fourier transformation of the readout signal into a frequency space, calculating from frequency amplitude, an energy value E for each bin, said amplitude resulting from the Fourier transformation, generating a three-dimensional function F(t, f, E) from the frequency amplitude, identifying event objects, said event objects exhibiting an impulsive rise in amplitude in their time signal and being substantially aperiodic, identifying note objects, said note objects exhibiting a pitch or a pitch evolution across a perceptible duration and having a substantially periodical or quasi-periodical curve in their time signal, 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, performing an inverse transformation of the frequency signal portions associated with note objects into time signals, representing, graphically, the note objects and/or event objects as a time/frequency display on a monitor, processing, either via user control or automatically, one or more note objects, storing the time signals of processed note objects, and 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.