Global Patent Index - EP 1377960 A1

EP 1377960 A1 20040107 - METHOD FOR CONVERTING A MUSIC SIGNAL INTO A NOTE-BASED DESCRIPTION AND FOR REFERENCING A MUSIC SIGNAL IN A DATA BANK

Title (en)

METHOD FOR CONVERTING A MUSIC SIGNAL INTO A NOTE-BASED DESCRIPTION AND FOR REFERENCING A MUSIC SIGNAL IN A DATA BANK

Title (de)

VERFAHREN ZUM ÜBERFÜHREN EINES MUSIKSIGNALS IN EINE NOTEN-BASIERTE BESCHREIBUNG UND ZUM REFERENZIEREN EINES MUSIKSIGNALS IN EINER DATENBANK

Title (fr)

PROCEDE POUR CONVERTIR UN SIGNAL MUSICAL EN UNE DESCRIPTION FONDEE SUR DES NOTES ET POUR REFERENCER UN SIGNAL MUSICAL DANS UNE BASE DE DONNEES

Publication

EP 1377960 A1 20040107 (DE)

Application

EP 02730100 A 20020404

Priority

  • DE 10117870 A 20010410
  • EP 0203736 W 20020404

Abstract (en)

[origin: WO02084641A1] The invention relates to a method for converting a music signal into a note-based description. Said method consists in producing a frequency-time-representation of the music signal (10). The frequency-time-representation comprises co-ordinating tupels, whereby a co-ordinate tuple has a frequency value and a temporal value; the temporal value indicates the time of the occurrence of the associated frequency in the music signal. The inventive method also consists in calculating a FITfunction as a function of time (12), whose progression is determined by the co-ordinate tuples of the frequency-time representation. At least two neighbouring extreme values of the FITfunction are determined (14) for temporal segmentation of the frequency-time-representation. Segmentation is carried out (16) based on the extreme value thus determined.

IPC 1-7

G10H 1/00

IPC 8 full level

G10G 3/04 (2006.01); G10H 1/00 (2006.01)

CPC (source: EP)

G10H 1/0041 (2013.01)

Citation (search report)

See references of WO 02084641A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 02084641 A1 20021024; AT 283530 T 20041215; DE 10117870 A1 20021031; DE 10117870 B4 20050609; DE 50201624 D1 20041230; EP 1377960 A1 20040107; EP 1377960 B1 20041124; HK 1060428 A1 20040806; JP 2004526203 A 20040826; JP 3964792 B2 20070822; US 2004060424 A1 20040401; US 7064262 B2 20060620

DOCDB simple family (application)

EP 0203736 W 20020404; AT 02730100 T 20020404; DE 10117870 A 20010410; DE 50201624 T 20020404; EP 02730100 A 20020404; HK 04103410 A 20040514; JP 2002581512 A 20020404; US 47346203 A 20030926