Apparatus and method of producing rhythm game, and non-transitory computer readable medium

1. A method of producing a rhythm game, the method comprising:

extracting, by at least one processor, a main sound source of a music signal based on a plurality of channel signals included in the music signal;

extracting, by the at least one processor, a peak period from the main sound source;

designating, by the at least one processor, a rhythm note that requires a tap input from a user and corresponds to a timing of the peak period;

editing, by the at least one processor, the rhythm note based on data received from an external source; and

outputting, by the at least one processor, the rhythm game incorporating the rhythm note,

wherein,

the rhythm note includes at least one of a single note requiring a single tap input or a sustain note requiring a long tap input, and

the designating designates the single note if a length of the peak period is equal to or less than a criterion, and designates the sustain note if the length of the peak period is greater than the criterion.

2. The method of claim 1 , wherein the extracting the peak period extracts a period in which a volume of the main sound source exceeds a threshold value as the peak period.

3. The method of claim 1 , wherein the main sound source comprises at least one selected from a vocal sound source or a drum sound source.

4. The method of claim 1 , wherein

the music signal is a stereo signal including a left channel signal and a right channel signal,

the main sound source includes a vocal sound source, and

the extracting the main sound source extracts the vocal sound source via a center channel extraction method.

5. The method of claim 1 , wherein the rhythm note comprises at least one selected from a single note requiring a single tap input, a sustain note requiring a long tap input or a combination thereof, the sustain note having a greater length than the single note.

6. The method of claim 5 , wherein the designating designates the sustain note for a peak period when the length of the peak period is greater than a threshold length.

7. The method of claim 5 , wherein the designating designates the single note for a peak period when the length of the peak period is less than or equal to a threshold length.

8. The method of claim 1 , further comprising:

calculating, by the at least one processor, a number of frequency components of the peak period extracted from the main sound source,

wherein the designating designates a number of single notes corresponding to the number of frequency components.

9. The method of claim 1 , further comprising:

obtaining, by the at least one processor, a music signal from a memory or via a network before the extracting the main sound source,

wherein the extracting the main sound source includes extracting the main sound source from the obtained music signal.

10. The method of claim 1 , wherein the rhythm note is designated to be allocated to at least one of a plurality of lines and in correspondence with a timing of the peak period.

11. The method of claim 10 , wherein the at least one of the plurality of lines is determined based on a desired order.

12. The method of claim 10 , wherein the designating designates the rhythm note to be allocated to at least two of the plurality of lines and in correspondence with a timing of the peak period.

13. The method of claim 10 , wherein the designating designates the rhythm note to be allocated to different lines and in correspondence with successive peak periods.

14. The method of claim 10 , wherein the at least one of the plurality of lines is determined based on a random order.

15. The method of claim 10 , wherein the rhythm note is designated to be allocated to at least two of the plurality of lines and in correspondence with a timing of the peak period, the plurality of lines being based on a plurality of sound sources of the music signal including the main sound source and at least one sub sound source.

16. A non-transitory computer readable medium storing instructions that when executed by a computer, cause the computer to perform the method of claim 1 .

17. The method of claim 1 , wherein the extracting the main sound source extracts a sound source having a highest volume as the main sound source.

18. The method of claim 1 , wherein the timing of the peak period corresponds to one of a point where the peak period begins or a highest volume during the peak period.

19. An apparatus for producing a rhythm game, the apparatus comprising:

a memory having computer readable instructions stored thereon; and

at least one processor configured to execute the computer readable instructions to,

extract a main sound source of a music signal based on an analysis of the music signal,

extract a peak period from the main sound source,

designate a rhythm note that requires a tap input from a user and corresponds to a timing of the peak period,

edit the rhythm note based on data received from an external source, and

output the rhythm game incorporating the rhythm note,

wherein,

the rhythm note includes at least one of a single note requiring a single tap input or a sustain note requiring a long tap input, and

the at least one processor is further configured to designate the single note if a length of the peak period is equal to or less than a criterion, and designate the sustain note if the length of the peak period is greater than the criterion.

20. The apparatus of claim 19 , wherein the at least one processor is configured to execute the computer readable instructions to further

obtain a music signal stored in a memory or via a network, and

wherein the at least one processor extracts the main sound source from the obtained music signal.