EP 1787283 A1 20070523 - EXTRACTION OF A MELODY ON WHICH AN AUDIO SIGNAL IS BASED
Title (en)
EXTRACTION OF A MELODY ON WHICH AN AUDIO SIGNAL IS BASED
Title (de)
EXTRAKTION EINER EINEM AUDIOSIGNAL ZU GRUNDE LIEGENDEN MELODIE
Title (fr)
EXTRACTION D'UNE MELODIE SOUS-JACENTE A UN SIGNAL AUDIO
Publication
Application
Priority
- EP 2005010325 W 20050923
- DE 102004049517 A 20041011
Abstract (en)
[origin: WO2006039992A1] According to the invention, melody extraction or automatic transcription can be made significantly more stable and possibly also less expensive by sufficiently taking into account 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. Hence, in order to determine the melody of the audio signal, a melody line which extends across the time/spectral representation is determined (780) first by unambiguously assigning exactly one spectral component or a frequency bin of the time/spectral representation to each time slot or frame, i.e. according to a special embodiment of the invention, the spectral component that results in the sound having the maximum intensity on said frame.
IPC 8 full level
G10H 1/00 (2006.01); G10L 25/18 (2013.01); G10L 25/51 (2013.01)
CPC (source: EP KR)
G10H 1/00 (2013.01 - KR); G10H 1/0008 (2013.01 - EP); G10K 15/00 (2013.01 - KR); G10L 19/02 (2013.01 - KR); G10H 2210/066 (2013.01 - EP); G10H 2210/086 (2013.01 - EP)
Citation (search report)
See references of WO 2006039992A1
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)
DE 102004049517 A1 20060420; DE 102004049517 B4 20090716; CN 101076849 A 20071121; EP 1787283 A1 20070523; JP 2008516288 A 20080515; KR 20070062551 A 20070615; WO 2006039992 A1 20060420
DOCDB simple family (application)
DE 102004049517 A 20041011; CN 200580042417 A 20050923; EP 05793771 A 20050923; EP 2005010325 W 20050923; JP 2007536025 A 20050923; KR 20077008256 A 20070411