A method for the detection and registration copyright protected music sequences in by means of radio - and television programs widespread audio sequence of broadcast - and television programs, wherein the spectrum of the widespread from the audio sequences in analog form as a sound spectrum detected audio signal is determined and this on the basis of a protected music sequence is evaluated unambiguously identifiable trigger conditions, with the following steps are performed:a) a continuous scanning of a widely used in radio - and television programs, and in an analogous the form of recorded audio sequence, which consists of a pure music sequence with superimposed sounds or noises may consist, of an a / d - transducer, wherein said analog is converted into a digital audio sequence,b) storing the digital audio sequence in a main memory and / or ring memory,c) performing a spectral analysis of the stored audio sequence, as a result of which a sound spectrum is determined with the assistance of protected music sequences is examined unambiguously identifying trigger conditions,d) whereby this trigger conditions the existence of spectral components and their intensity ratios to one another, and of sound spectra stored in a memory to identify a protected music sequences..
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