Device and method for analysing an information signal

To the Analyzing an information signal, a significant short-time spectrum extracted from the information signal, wherein the means for Extracting is configured to extract such short-time spectra, coming a specific characteristic closer than other short-time spectra the information signal. The extracted short-time spectra then decomposed into component signals, by using a ICA analysis, a component signal spectrum a profile spectrum represents a source which generates a tone of this Characteristic corresponds. A sequence of short-time spectra of the information signal and from the determined profile spectra after all for each Profile spectrum an amplitude calculated, indicating how a profile spectrum of a sound source on the Time changes in total. The profile spectra including associated amplitude envelopes provide a description of the Information signal z. B. for purposes of transcription in The case of a music signal can be further analyzed.