Method and apparatus for generating sound for mixed reality environments

1 . A method for generating a sound, the method comprising:

acquiring a real sound generated in a real space and a play sound generated in a virtual space; and

generating, by combining the real sound and the play sound, a combined sound generated in a mixed reality in which the real space and the virtual space are mixed, the generated combined sound configured to audibly immerse a user in the generated combined sound to promote an experience by the user that the user is positioned in the mixed reality, wherein generating comprises adjusting a volume of at least one real object sound based, at least in part, on a position of a real object corresponding to the at least one real object sound and generating the combined sound by combining the at least one real object sound whose volume is adjusted and at least one virtual object sound.

2 . The method of claim 1 , wherein generating the combined sound comprises selecting the at least one real object sound from among a plurality of real object sounds included in the real sound, selecting the at least one virtual object sound from among a plurality of virtual object sounds included in the play sound, and combining the selected at least one real object sound and the selected at least one virtual object sound.

3 . The method of claim 2 , wherein the plurality of real object sounds comprise sounds generated from a plurality of real objects positioned in the real space.

4 . The method of claim 2 , wherein the plurality of virtual object sounds comprise sounds generated from a plurality of virtual objects positioned in the virtual space.

5 . The method of claim 2 , wherein selecting the at least one real object sound comprises recognizing the plurality of real object sounds based on sound characteristics of at least one real object sound, and selectively extracting the at least one real object sound from among the plurality of real object sounds based on a real object sound selection condition.

6 . The method of claim 5 , wherein recognizing comprises removing a noise sound from the real sound based on a noise filtering technique and recognizing the plurality of real object sounds from the real sound from which the noise sound has been removed based on at least one of a frequency and volume of the object sound.

7 . The method of claim 1 , wherein adjusting the volume of the at least one real object sound comprises determining the position of the real object in the real space based on a sound acquisition time of the at least one real object sound and adjusting the volume of the at least one real object sound based on a separation distance between the position of the user and the position of the real object.

8 . A device comprising:

a memory having instructions; and

a processor for executing the instructions, wherein the processor acquires a real sound generated in a real space and a play sound generated in a virtual space and generates, by combining the real sound and the play sound, a combined sound generated in a mixed reality in which the real space and the virtual space are mixed, the combined sound generated configured to audibly immerse a user in the combined sound to promote an experience by the user that the user is positioned in the mixed reality, wherein generating comprises adjusting a volume of at least one real object sound based, at least in part, on a position of a real object corresponding to the at least one real object sound and generating the combined sound by combining the at least one real object sound whose volume is adjusted and at least one virtual object sound.

9 . The device of claim 8 , wherein the processor selects the at least one real object sound from among a plurality of real object sounds included in the real sound, selects the at least one virtual object sound from among a plurality of virtual object sounds included in the play sound, and combines the selected at least one real object sound and the selected at least one virtual object sound.

10 . The device of claim 9 , wherein the plurality of real object sounds comprise sounds generated from a plurality of real objects positioned in the real space.

11 . The device of claim 9 , wherein the plurality of virtual object sounds comprise sounds generated from a plurality of virtual objects positioned in the virtual space.

12 . The device of claim 9 , wherein the processor recognizes the plurality of real object sounds based on sound characteristics of at least one real object sound, and selectively extracts the at least one real object sound from among the plurality of real object sounds based on a real object sound selection condition.

13 . The device of claim 12 , wherein the processor removes a noise sound from the real sound based on a noise filtering technique and recognizes the plurality of real object sounds from the real sound from which the noise sound has been removed based on at least one of a frequency and volume of the object sound.

14 . The device of claim 8 , wherein the processor determines the position of the real object in the real space based on a sound acquisition time of the at least one real object sound and adjusts the volume of the sound of the at least one real object based on a separation distance between the position of the user and the position of the real object.

15 . The device of claim 8 further comprising a black box having a real-time storage function.

16 . The device of claim 15 , wherein the black box includes a real-time call, real-time stream, real-time surrounding recording function, and a function capable of playing when necessary.

17 . The device of claim 15 , wherein the black box includes a function of storing and saving real-time information.