Musical score position estimating apparatus, musical score position estimating method, and musical score position estimating program
AssigneeHonda Motor Co., Ltd.
InventorsKazuhiro NAKADAI, Takuma OTSUKA, Hiroshi OKUNO
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Abstract
A musical score position estimating apparatus includes a sound feature quantity generating unit configured to generate a feature quantity of an input sound signal, and, a score position estimating unit configured to calculate a weight coefficient based on the feature quantity of the sound signal and a feature quantity of musical score information and estimates a musical score position using a virtual musical score position and a virtual tempo corresponding to the weight coefficient.
Claims7
A musical score position estimating apparatus comprising:
- a sound feature quantity generating unit configured to generate a feature quantity of an input sound signal;
- and
- a score position estimating unit configured to calculate a weight coefficient based on the feature quantity of the sound signal and a feature quantity of musical score information and estimates a musical score position using a virtual musical score position and a virtual tempo corresponding to the weight coefficient.
A musical score position estimating method in a musical score position estimating apparatus, comprising:
- a first step of causing the musical score position estimating apparatus to generate a feature quantity of an input sound signal every predetermined interval;
- and
- a second step of causing the musical score position estimating apparatus to calculate a weight coefficient based on the feature quantity of the sound signal and a feature quantity of musical score information and to estimate a musical score position using a virtual musical score position and a virtual tempo corresponding to the weight coefficient.
A musical score position estimating program allowing a computer of a musical score position estimating apparatus to perform:
- a process of generating a feature quantity of an input sound signal;
- and
- a process of calculating a weight coefficient based on the feature quantity of the sound signal and a feature quantity of musical score information and estimating a musical score position using a virtual musical score position and a virtual tempo corresponding to the weight coefficient.
Dependencies are inferred from the claim text.