METHOD AND DEVICE FOR THE EXTRACTION OF A MELODY ON WHICH AN AUDIO SIGNAL IS BASED

摘要

The invention is based on the recognition that it is possible to make melody extraction or automatic transcription significantly more stable and possibly even less expensive if the assumption that the main melody is the portion of a piece of music which is perceived by humans as being the loudest and most prominent is taken into account to a sufficient degree. According to the invention, the time/spectral representation or the spectrogram of an audio signal that is of interest is scaled (772) using the curves (774) which have the same loudness and reflect the human perception of loudness in order to determine the melody of the audio signal based on the obtained perception-related time/spectral representation.