Title:
AUDIO SIGNAL PROCESSING METHOD AND AUDIO SIGNAL PROCESSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/154928
Kind Code:
A1
Abstract:
An audio signal processing method according to an embodiment of the present invention comprises: a step of obtaining an input audio signal; a step of obtaining the number of beats per unit time from the input audio signal; a step of normalizing the input audio signal using the number of beats per unit time; a step of calculating a beat spectrum of the normalized input audio signal; and a step of calculating a rhythm similarity degree between the beat spectrum of the normalized input audio signal and a normalized beat spectrum calculated from a reference audio signal.
Inventors:
SASAI DAN (JP)
Application Number:
PCT/JP2017/009074
Publication Date:
September 14, 2017
Filing Date:
March 07, 2017
Export Citation:
Assignee:
YAMAHA CORP (JP)
International Classes:
G10L25/27; G10G3/04; G10L25/51; G10L25/54
Foreign References:
| JP2011221156A | 2011-11-04 | |||
| JP2003330460A | 2003-11-19 | |||
| JP2008275975A | 2008-11-13 |
Other References:
SHOTA KAWABUCHI ET AL.: "NMF o Riyo shita Gakkyokukan Ruiji Shakudo no Kosei Hoho ni Kansuru Kento", REPORT OF THE 2011 SPRING MEETING, THE ACOUSTICAL SOCIETY OF JAPAN CD- ROM, 2 March 2011 (2011-03-02), pages 1035 - 1036
JONATHAN FOOTE: "Shingo Uchihashi, The Beat Spectrum: A New Approach To Rhythm Analysis", IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO, 2001, pages 1088 - 1091, XP055420487
JONATHAN FOOTE: "Shingo Uchihashi, The Beat Spectrum: A New Approach To Rhythm Analysis", IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO, 2001, pages 1088 - 1091, XP055420487
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
Download PDF: