Aligning and mixing songs of arbitrary genres

Details Aligning and mixing songs of arbitrary genres Aligning and mixing songs of arbitrary genres

2007-05-22

2007-05-22

Donels, Jeffrey W (Department: 2837)

Music

Instruments

Electrical musical tone generation

C700S094000

Reexamination Certificate

active

11381449

ABSTRACT:
A “music mixer”, as described herein, provides a capability for automatically mixing arbitrary pieces of music, regardless of whether the music being mixed is of the same music genre, and regardless of whether that music has strong beat structures. In automatically determining potential mixes of two or more songs, the music mixer first computes a frame-based energy for each song. Using the computed frame-based energies, the music mixer then computes one or more potentially optimal alignments of the digital signals representing each song based on correlating peaks of the computed energies across a range of time scalings and time shifts without the need to ever compute or evaluate a beats-per-minute (BPM) for any of the songs. Then, once one of the potentially optimal time-scalings and time-shifts has been selected, the songs are then simply blended together using those parameters.

REFERENCES:
patent: 6307141 (2001-10-01), Laroche et al.
patent: 6344607 (2002-02-01), Cliff
patent: 6518492 (2003-02-01), Herberger et al.
patent: 6831883 (2004-12-01), Yamada et al.
patent: 2002/0002898 (2002-01-01), Schmitz et al.
patent: 2002/0166440 (2002-11-01), Herberger et al.

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