EP 1797552 B1 20100421 - METHOD AND DEVICE FOR THE EXTRACTION OF A MELODY ON WHICH AN AUDIO SIGNAL IS BASED
Title (en)
METHOD AND DEVICE FOR THE EXTRACTION OF A MELODY ON WHICH AN AUDIO SIGNAL IS BASED
Title (de)
VERFAHREN UND VORRICHTUNG ZUR EXTRAKTION EINER EINEM AUDIOSIGNAL ZU GRUNDE LIEGENDEN MELODIE
Title (fr)
PROCEDE ET DISPOSITIF POUR EXTRAIRE UNE MELODIE SERVANT DE BASE A UN SIGNAL AUDIO
Publication
Application
Priority
- EP 2005010333 W 20050923
- DE 102004049457 A 20041011
Abstract (en)
[origin: US2006075884A1] The finding of the present invention is that the melody extraction or automatic transcription may be implemented clearly more stable and if applicable even less expensive when the assumption is considered sufficiently that the main melody is the portion of a piece of music which man perceives the loudest and the most precise. Regarding this, according to the present invention the time/spectral representation or the spectrogram of an interesting audio signal is scaled using the curves of equal volume reflecting human volume perception in order to determine the melody of the audio signal on the basis of the resulting perception-related time/spectral representation.
IPC 8 full level
G10H 1/00 (2006.01); G10L 25/18 (2013.01); G10L 25/51 (2013.01)
CPC (source: EP KR US)
G10H 1/00 (2013.01 - KR); G10H 3/125 (2013.01 - EP US); G10K 15/00 (2013.01 - KR); G10H 2210/066 (2013.01 - EP US); G10H 2210/086 (2013.01 - EP US); G10H 2250/031 (2013.01 - EP US); G10H 2250/161 (2013.01 - EP US); G10H 2250/235 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2006075884 A1 20060413; AT E465484 T1 20100515; CN 101076850 A 20071121; DE 102004049457 B3 20060706; DE 502005009467 D1 20100602; EP 1797552 A2 20070620; EP 1797552 B1 20100421; JP 2008516289 A 20080515; KR 20070062550 A 20070615; WO 2006039994 A2 20060420; WO 2006039994 A3 20070419
DOCDB simple family (application)
US 1410704 A 20041215; AT 05790019 T 20050923; CN 200580042530 A 20050923; DE 102004049457 A 20041011; DE 502005009467 T 20050923; EP 05790019 A 20050923; EP 2005010333 W 20050923; JP 2007536026 A 20050923; KR 20077008255 A 20070411