Computer program, information reproduction device, and method

1. A non-transitory computer-readable medium recording thereon a computer program for making a computer perform:

a measuring process of measuring a beat candidate value, which is the number of beats of content per unit time;

a reference setting process of setting a beat reference value, whose unit is a BPM (Beat Per Minute), according to a user's input which is a TAP operation;

a determining process of determining a beat definite value set in the vicinity of the beat reference value and set in a range of an upper limit to a lower limit which are set on the basis of the beat reference value, from among the measured beat candidate value;

a ratio setting process of variably setting a ratio between each of the upper limit and the lower limit and the beat reference value; and

a displaying process of displaying at least one of the beat candidate value, the beat reference value and the beat definite value.

2. The non-transitory computer-readable medium according to claim 1 , wherein

the upper limit is set by adding M % of the beat reference value to the beat reference value, M being a positive real number, and

the lower limit is set by subtracting N % of the beat reference value from the beat reference value, N being a positive real number.

3. The non-transitory computer-readable medium according to claim 1 , wherein

said measuring process measures a plurality of beat candidate values in each of frequency bands of the content, and

said determining process determines a beat candidate value having a minimum difference from the beat reference value from among the plurality of beat candidate values, as the beat definite value.

4. The non-transitory computer-readable medium according to claim 1 , further making the computer perform a correcting process of correcting the beat candidate value, to thereby generate a new beat candidate value.

5. The non-transitory computer-readable medium according to claim 4 , wherein said correcting process corrects the beat candidate value, if needed, on the basis of a relationship between the beat candidate value and the beat reference value.

6. The non-transitory computer-readable medium according to claim 4 , wherein said correcting process multiplies the beat candidate value measured in said measuring process by a predetermined coefficient, to thereby generate the new beat candidate value.

7. The non-transitory computer-readable medium according to claim 6 , wherein the predetermined coefficient is at least one of ½, ⅔, 1, 3/2, and 2.

8. The non-transitory computer-readable medium according to claim 1 , wherein

the user's input is a pulse outputted by pressing an operation key a plurality of times in desired timing, and

said reference value setting process sets an inverse number of an average cycle of the pulse, as the beat reference value.

9. The non-transitory computer-readable medium according to claim 1 , further making the computer perform a dividing process of dividing the content into a plurality of sections along a time axis, on the basis of the beat candidate value,

said determining process determining the beat definite value in each of the divided sections.

10. The non-transitory computer-readable medium according to claim 1 , further making the computer perform a changing process of changing an operation in said determining process such that the beat reference value is determined to be the beat definite value in said determining process.

11. The non-transitory computer-readable medium according to claim 1 , wherein the content includes music song content.

12. An information reproducing apparatus comprising:

a measuring device for measuring a beat candidate value, which is the number of beats of content per unit time;

a reference setting device for setting a beat reference value, whose unit is a BPM (Beat Per Minute), according to a user's input which is a TAP operation;

a determining device for determining a beat definite value set in the vicinity of the beat reference value and set in a range of an upper limit to a lower limit which are set on the basis of the beat reference value, from among the measured beat candidate value;

a ratio setting device for variably setting a ratio between each of the upper limit and the lower limit and the beat reference value; and

a displaying device for displaying at least one of the beat candidate value, the beat reference value and the beat definite value.

13. The information reproducing apparatus according to claim 12 , further comprising an inputting device for receiving the user's input.

14. The information reproducing apparatus according to claim 12 , wherein said inputting device comprises an operation key which can be pressed a plurality of times in desired timing.

15. An information reproducing method comprising:

measuring, via an information reproducing apparatus, a beat candidate value, which is the number of beats of content per unit time;

setting, via the information reproducing apparatus, a beat reference value, whose unit is a BPM (Beat Per Minute), according to a user's input which is a TAP operation; and

determining, via the information reproducing apparatus, a beat definite value set in the vicinity of the beat reference value and set in a range of an upper limit to a lower limit which are set on the basis of the beat reference value, from among the measured beat candidate value;

variably setting, via the information reproducing apparatus, a ratio between each of the upper limit and the lower limit and the beat reference value; and

displaying, via the information reproducing apparatus, at least one of the beat candidate value, the beat reference value and the beat definite value.