Title:
MUSICAL INSTRUMENT SOUND RECOGNITION DEVICE
Document Type and Number:
Japanese Patent JP2018025613
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve identification precision of a chord.SOLUTION: A musical instrument sound recognition device 10 includes: an acquisition part 11 for sampling a musical instrument sound at a predetermined time unit, and successively acquiring the sampled musical instrument sound as recorded data; a recorded sound data storage part 12 for storing recorded data acquired by the acquisition part 11; a determination part 13 for determining a start timing of a chord, based on a volume value for indicating a sound volume of recorded data stored in the recorded sound data storage part 12; an extraction part 14 for extracting recorded sound data within a predetermined time range from the start timing determined by the determination part 13 as data to be identified; an identification part 15 for performing a frequency analysis of the data to be identified and for identifying a chord based on spectrum data obtained by the frequency analysis; and an output part 16 for outputting an identification result for indicating a chord identified by the identification part 15.SELECTED DRAWING: Figure 1
Inventors:
MATSUOKA HOSEI
Application Number:
JP2016155873A
Publication Date:
February 15, 2018
Filing Date:
August 08, 2016
Export Citation:
Assignee:
NTT DOCOMO INC
International Classes:
G10G3/04; G10H1/38; G10L25/51
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Takashi Okiyama
Kenji Fukaishi
Yoshiki Kuroki
Takashi Okiyama
Kenji Fukaishi
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