METHOD AND DEVICE FOR GENERATING AN IDENTIFIER FOR AN AUDIO SIGNAL, FOR CREATING AN INSTRUMENT DATABASE AND FOR DETERMINING THE T YPE OF INSTRUMENT

摘要

The invention relates to a method for generating an identifier for an audio signal (12) that contains a tone produced by the instrument, according to which a discrete amplitude-time representation of the audio signal is firstly produced (14), whereby the amplitude-time representation has a number of successive amplitude values for a number of successive points in time, and one point in time is assigned to each amplitude value. An identifier (18) for the audio signal is extracted (16) from the amplitude-time representation. An instrument database is created from a number of identifiers for a number of audio signals that contain tones of a number of instruments. The instrument database is utilized to determined the type of test instrument while using a test identifier for an audio signal that had been produced by an unknown instrument. As for identifying musical instruments, an instrument can be precisely identified by using the amplitude-time representation of a tone that is produced by an instrument.