JP2019165845A - Program, image processing method, and information processing device - Google Patents

Abstract

To output a reverberant sound with less discomfort.SOLUTION: An information processing device is caused to execute processing for calculating a distance between the position of a user in a virtual three-dimensional space of a game and the position of a generation source of a sound output in the game, and processing for determining volume of an initial reflection sound and volume of a later reverberant sound respectively according to the distance so that a ratio of the volume of the initial reflection sound of the aforesaid sound to the volume of the later reverberant sound of the aforesaid sound is different according to the distance.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a program, an image processing method, and an information processing apparatus.

  2. Description of the Related Art Conventionally, in a computer game or the like, a technique for outputting a reverberant sound according to a direct sound using an effector (reverberation effector, reverberator) when outputting a sound according to the game situation is known (for example, (See Patent Document 1). In this effector, the game designer specifies various parameters for generating reverberation sound, for example, assuming the room size, shape, wall material, and the positional relationship between the listener and the sound source in the game. Can do.

JP 2000-267675 A

  However, in the related art, for example, when sharing an effector with a plurality of sound sources that are simultaneously sounded, there is a problem that the user may feel uncomfortable.

  Therefore, an object of one aspect is to provide a technique capable of outputting a reverberant sound with a lower sense of incongruity.

  In one proposal, the information processing device is configured to calculate a distance between the position of the user in the virtual three-dimensional space of the game and the position of the sound source that is output in the game, and the initial reflected sound of the sound. A process for determining the volume of the early reflection sound and the volume of the late reverberation sound according to the distance, respectively, so that the ratio between the volume and the volume of the late reverberation sound of the sound differs according to the distance; Is executed.

  According to one aspect, it is possible to output a reverberant sound that is less uncomfortable.

It is a figure which shows the hardware structural example of the information processing apparatus which concerns on embodiment. It is a functional block diagram of the information processor concerning an embodiment. It is a figure which shows an example of the reverb setting data which concern on embodiment. It is a flowchart which shows an example of a process of the information processing apparatus which concerns on embodiment. It is a figure which shows an example of the attenuation | damping curve data which concern on embodiment. It is a figure explaining an example of the data which shows the curve of the attenuation amount of an early reflected sound, and the data which show the curve of the attenuation amount of a late reverberation sound. It is a figure explaining an example of an early reflection sound. It is a figure explaining an example of a late reverberation sound. It is a figure explaining an example of processing of an information processor concerning an embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Hardware configuration>
FIG. 1 is a diagram illustrating a hardware configuration example of an information processing apparatus 10 according to the embodiment. The information processing apparatus 10 illustrated in FIG. 1 includes a drive device 100, an auxiliary storage device 102, a memory device 103, a CPU 104, an interface device 105, a display device 106, an input device 107, and the like that are mutually connected by a bus B. .

  A game program for realizing processing in the information processing apparatus 10 is provided by the recording medium 101. When the recording medium 101 on which the game program is recorded is set in the drive device 100, the game program is installed from the recording medium 101 to the auxiliary storage device 102 via the drive device 100. However, it is not always necessary to install the game program from the recording medium 101, and the game program may be downloaded from another computer via a network. The auxiliary storage device 102 stores the installed game program and also stores necessary files and data.

  The memory device 103 is a memory such as DRAM (Dynamic Random Access Memory) or SRAM (Static Random Access Memory), for example, and reads and stores the program from the auxiliary storage device 102 when a program activation instruction is issued. . The CPU 104 realizes functions related to the information processing apparatus 10 according to a program stored in the memory device 103. The interface device 105 is used as an interface for connecting to a network. The display device 106 displays a GUI (Graphical User Interface) or the like by a program. The input device 107 includes a controller, a keyboard and a mouse, or a touch panel and buttons, and is used to input various operation instructions.

  An example of the recording medium 101 is a portable recording medium such as a CD-ROM, a DVD disk, a Blu-ray disk, or a USB memory. Further, examples of the auxiliary storage device 102 include an HDD (Hard Disk Drive), an SSD (Solid State Drive), a flash memory, and the like. Both the recording medium 101 and the auxiliary storage device 102 correspond to computer-readable recording media.

<Functional configuration>
Next, the functional configuration of the information processing apparatus 10 will be described with reference to FIG. FIG. 2 is a functional block diagram of the information processing apparatus 10 according to the embodiment.

  The information processing apparatus 10 includes a storage unit 11. The storage unit 11 is realized using, for example, the auxiliary storage device 102 or the like. The storage unit 11 stores reverb setting data 111 that is setting data related to reverb, attenuation curve data 112, and the like. The attenuation curve data 112 will be described later.

  FIG. 3 is a diagram illustrating an example of the reverb setting data 111 according to the embodiment. In the example of FIG. 3, the reverb setting data 111 is a setting item compliant with the use of I3DL2 (Interactive 3-D Audio, Level 2) defined by IASIG (Interactive Audio Special Interest Group), which is an industry group of multimedia audio. Have In the example of FIG. 3, the reverb setting data 111 includes items such as “Reflections” indicating the volume (level) of the initial reflection and “ReflectionsDelay” indicating the delay time of the initial reflection as items that affect the initial reflection. In addition, as the items affecting late reverberation, “Reverb” indicating the volume of late reverberation, “ReverbDelay” indicating the delay time of late reverberation based on the early reflection, “DecayTime” indicating the decay time, and low frequency decay time Items such as “DecayHFRatio” indicating the ratio of the high-frequency decay time to “Diffusion”, “Diffusion” indicating the echo density (spreading), and “Density” indicating the modal density (resonance) are included. Further, items that affect the whole include items such as “Room” indicating the entire level, “RoomHF” indicating the entire high frequency attenuation amount, and “HFReference” indicating the reference frequency of the entire high frequency attenuation. Each item of the reverb setting data 111 is preset with a value adjusted by an artist or the like who designs the sound of the game.

  In addition, the information processing apparatus 10 includes a reception unit 12, a control unit 13, a calculation unit 14, a determination unit 15, a reverberation sound generation unit 16, and an output control unit 17. Each of these units is realized by processing that one or more programs installed in the information processing apparatus 10 cause the CPU 104 of the information processing apparatus 10 to execute.

  The accepting unit 12 accepts an operation such as moving the player character in the virtual three-dimensional space from the user. The control unit 13 controls the progress of the game.

  The calculation unit 14 calculates a distance between the position of the user in the virtual three-dimensional space of the game and the position of the sound generation source output in the game. Here, the position of the user in the virtual three-dimensional space of the game may be, for example, the position of a player character or the like operated by the user, or the viewpoint of the user in the virtual three-dimensional space (virtual camera, virtual camera). Etc. may be used. The control unit 13 displays the virtual three-dimensional space photographed by the virtual camera on the screen using three-dimensional computer graphics. The position of the virtual camera is, for example, a position on a spherical surface that is a predetermined distance away from the center position of the player character in the virtual three-dimensional space, and may be moved on the spherical surface by a user operation.

  The determination unit 15 uses the calculation unit 14 to calculate the ratio of the volume of the initial reflected sound (the reverberation sound due to the initial reflection) of the sound output in the game and the volume of the later reverberation sound (the reverberation sound due to the late reverberation) The volume of the initial reflected sound and the volume of the late reverberation sound corresponding to the distance are determined so as to differ depending on the calculated distance.

  The reverberant sound generation unit 16 generates a reverberant sound that is output in the game.

  The output control unit 17 displays an image in the game on the screen in accordance with an instruction from the control unit 13. Further, the output control unit 17 causes the speaker to output sound in the game in accordance with an instruction from the control unit 13.

<Processing>
Next, processing of the information processing apparatus 10 will be described with reference to FIGS. 4 to 9. FIG. 4 is a flowchart illustrating an example of processing of the information processing apparatus 10 according to the embodiment.

  In step S <b> 1, the reverberation sound generation unit 16 generates a reverb object (instance) for initial reflection when the information processing apparatus 10 is powered on. Note that the initial reflected sound is a reverberant sound in which the generated sound is reflected a relatively small number of times (for example, once) by the object in the virtual three-dimensional space and reaches the position of the user in the virtual three-dimensional space. .

  Here, for example, the reverberation sound generation unit 16 designates the value of “Reverb” described above as zero (0), and uses the values preset in the reverb setting data 111 in FIG. 3 for the other items. The first reverb object compliant with the I3DL2 specification may be generated as the reverb object for initial reflection.

  The initial reflection reverb, for example, generates multi-tap delays with different delay times for the direct sound signal (data) in parallel, and outputs the generated signal as the initial reflected sound for the direct sound. Also good. Thereby, the initial reflected sound can be output in real time even with relatively limited computing resources (resources). Note that other known methods may be used as a method for generating the initial reflected sound.

  Subsequently, the reverberation sound generation unit 16 generates a reverberation object for late reverberation (step S2). The late reverberation sound is a reverberation sound in which the generated sound is reflected a relatively large number of times by the object in the virtual three-dimensional space and reaches the position of the user in the virtual three-dimensional space.

  Here, for example, the reverberation sound generation unit 16 specifies the value of “Reflections” described above to zero (0), and uses the values set in advance in the reverb setting data 111 in FIG. 3 for the other items. The second reverb object compliant with the I3DL2 specification may be generated as a reverberation object for late reverberation.

  The reverberation for late reverberation is performed by, for example, a comb filter that repeatedly outputs a signal obtained by delaying an input signal (direct sound signal) at a constant cycle while attenuating the input signal (direct sound signal) by feeding back the delayed signal with a gain smaller than 1. You may output the produced | generated signal as the late reverberation sound with respect to the said direct sound. Other known methods may be used as a method for generating the late reverberation sound.

  Subsequently, the control unit 13 generates an event in which sound is generated by one or more predetermined objects (sound generation sources) in the virtual three-dimensional space in the game (step S3). Subsequently, the calculation unit 14 calculates a distance between the position of the user in the virtual three-dimensional space and the one or more predetermined objects that cause the sound (step S4).

  Subsequently, the determination unit 15 determines each volume of the direct sound of the sound, the initial reflected sound of the sound, and the late reverberation sound of the sound according to the distance from the one or more predetermined objects. (Step S5). Here, when the sound generated by a plurality of objects is generated simultaneously, the determination unit 15 determines the sound volume of each of the direct sound, the early reflection sound, and the late reverberation sound for each of the plurality of objects. FIG. 5 is a diagram illustrating an example of the attenuation curve data 112 according to the embodiment. In the attenuation curve data 112 of FIG. 5, data indicating the attenuation curve of the early reflection sound and data indicating the attenuation curve of the late reverberation sound are set in association with the sound source ID. The sound source ID is, for example, sound identification information output in the game. The sound source ID may be identification information of a space in a virtual three-dimensional space where an object that generates sound is located. The sound source ID may be identification information of a type of a space (place) in a virtual three-dimensional space where an object that generates sound is located. In this case, the type of the space may be a type of space having the same physical characteristics of reverberation, such as a relatively small room, a relatively large room, a forest, and a cave.

  The data indicating the attenuation curve of the early reflection sound and the data indicating the attenuation curve of the late reverberation sound stored in the attenuation curve data 112 of FIG. 5 are associated with the sound source ID, for example, a virtual game Data corresponding to the space in the three-dimensional space is set in advance. The data indicating these curves may be set, for example, as a value adjusted by an artist who designs the sound of the game, or may be set as a value adjusted by a designer who designs the game space. Good.

  Next, data indicating the attenuation curve of the early reflection sound and data indicating the attenuation curve of the late reverberation sound stored in the attenuation curve data 112 of FIG. 5 will be described with reference to FIG. FIG. 6 is a diagram for explaining an example of data indicating a curve of the attenuation amount of the early reflection sound and data indicating a curve of the attenuation amount of the late reverberation sound. In the example of FIG. 6, a curve 601 of the direct sound attenuation amount with the horizontal axis representing the distance between the user and the sound source in the virtual three-dimensional space and the vertical axis representing the sound attenuation amount, A curve 602 and a curve 603 of late reverberation attenuation are shown. The direct sound attenuation curve 601 may be a curve in which the volume (amplitude level) of the direct sound radiated from the sound source is inversely proportional to the distance.

  In the example of FIG. 6, a curve 602 for the attenuation amount of the initial reflected sound is set such that the sound volume increases as the distance decreases, and the sound volume decreases relatively abruptly when the distance exceeds a predetermined value. . This is because the space in the virtual three-dimensional space of the game associated with the early reflection sound attenuation curve 602 is, for example, a box-shaped room of a predetermined size surrounded by six faces. is there. In addition, when the space is a box-shaped room of a predetermined size, the actual reverberation sound is farther away from the person who hears the sound and the sound source, and the wall behind the person. And the distance between the sound source and the wall behind it. Therefore, since the difference (delay) in the arrival time between the direct sound and the initial reflected sound is small, it is considered that when the distance exceeds a predetermined value, the initial reflected sound is hardly perceived due to the so-called Haas effect. Instead of the curve 602 of the initial reflected sound attenuation amount, a curve of the coefficient of attenuation of the initial reflected sound multiplied by the curve 601 of the direct sound attenuation amount may be used. In this case, the determination unit 15 multiplies the value on the curve 601 of the attenuation amount of the direct sound with respect to the distance by the value on the curve of the coefficient with respect to the distance, thereby obtaining the curve 602 of the attenuation amount of the initial reflected sound. A value may be calculated.

  In the example of FIG. 6, as the curve 603 of the attenuation amount of the late reverberant sound, a curve is set in which the decrease in the attenuation amount due to the increase in the distance is relatively gradual and the sound volume is relatively small. This is because the late reverberation sound in reality is delayed by multiple reflections, so the so-called Haas effect does not occur, and the attenuation curve is set so that it is difficult to attenuate even at long distances even though the volume is small This is because it is considered natural to do. In the example of FIG. 6, when the distance is equal to or less than the distance 604 (an example of “predetermined threshold”), the volume of the initial reflected sound is set to be greater than or equal to the volume of the late reverberant sound, and the distance is When the distance is larger than the distance 604, the volume of the early reflection sound is set to be smaller than the volume of the late reverberation sound. Further, at a distance 605 larger than the distance 604, the volume of the early reflection sound is set to about half of the volume of the late reverberation sound. In place of the curve 603 for the attenuation amount of the late reverberant sound, a curve of the coefficient of the attenuation amount of the late reverberant sound that is multiplied by the curve 601 of the direct sound attenuation amount may be used. In this case, the determination unit 15 multiplies the value on the curve 601 of the attenuation amount of the direct sound with respect to the distance by the value on the curve of the coefficient with respect to the distance, thereby obtaining the curve 603 of the attenuation amount of the late reverberation sound. A value may be calculated.

  Subsequently, the reverberation sound generation unit 16 generates data of the initial reflection sound in the sound by using the reverberation object for initial reflection (step S6). Here, the reverberant sound generation unit 16 multiplies the direct sound amplitude of the sound by a coefficient corresponding to the volume of the initial reflected sound determined in step S5, for example, to calculate the initial reflected sound. Is calculated, and the signal data of the direct sound having the calculated amplitude is input to the reverb object for initial reflection.

  FIG. 7 is a diagram illustrating an example of the initial reflected sound. In the example of FIG. 7, the initial reflected sound 702 with respect to the input signal 701 is shown with the horizontal axis representing the time from when the sound generating event occurs until the sound is output, and the vertical axis representing the volume. In the example of FIG. 7, the input signal 701 is a direct sound signal whose amplitude is adjusted according to the above-described distance in order to generate the initial reflected sound in the sound, and is input to the reverb object for initial reflection. Short rectangular wave signal data. The initial reflected sound 702 is a plurality of rectangular waves generated based on the input signal 701 by a predetermined algorithm.

  Subsequently, the reverberant sound generation unit 16 generates data of the late reverberation sound in the sound by using the reverberation object for the late reverberation (step S7). Here, the reverberation sound generation unit 16 multiplies the direct sound amplitude of the sound by a coefficient corresponding to the volume of the late reverberation sound determined in step S5, for example, to calculate the direct sound for the later reverberation sound. The amplitude ("second amplitude") is calculated, and the signal data of the direct sound with the calculated amplitude is input to the reverberation object for late reverberation.

  FIG. 8 is a diagram illustrating an example of the late reverberation sound. In the example of FIG. 8, a late reverberation sound 802 with respect to the input signal 801 is shown with the horizontal axis representing the time from when the sound generating event occurs until the sound is output, and the vertical axis representing the volume. In the example of FIG. 8, the input signal 801 is a direct sound signal whose amplitude is adjusted according to the above-described distance in order to generate a late reverberation sound in the sound, and is input to a reverberation object for late reverberation. Short rectangular wave signal data. The late reverberation sound 802 is a plurality of rectangular waves generated based on the input signal 801 by a predetermined algorithm. 7 and 8 are examples in the case of the distance 605 in the example of FIG. 6, and the amplitude of the input signal 701 in FIG. 7 is adjusted to about half of the amplitude of the input signal 801 in FIG. .

  Subsequently, the output control unit 17 synthesizes and outputs the direct sound of the sound, the initial reflected sound of the sound, and the late reverberation sound of the sound at each determined volume (step S8). Here, the output control unit 17 outputs the sound directly attenuated according to the distance, the initial reflected sound 702 in FIG. 7, and the late reverberant sound 802 in FIG. It is synthesized at the time and output from a speaker or the like.

  Subsequently, the control unit 13 determines whether or not to end the game (step S9). When the game is not ended (NO in step S9), the process proceeds to step S3. If the game is to end (YES in step S9), the process ends.

  FIG. 9 is a diagram illustrating an example of processing of the information processing apparatus 10 according to the embodiment. In the example of FIG. 9, an example in which four sounds of the sound source A901 to the sound source D904 are generated simultaneously is shown. In the example of FIG. 9, the output control unit 17 multiplies the volume of the direct sound signal of the sound source A 901 by the amount of attenuation corresponding to the distance between the user's position in the virtual three-dimensional space and the sound source A 901 by the process 901A. Then, the data is output to the subsequent process 911. Here, for example, the output control unit 17 attenuates the volume of the direct sound signal of the sound source A 901 so as to be inversely proportional to the distance. Also, the output control unit 17 sets the volume of the direct sound signal of each sound source to the sound source B 902, the sound source C 903, and the sound source D 904 by the processing 902A, the processing 903A, and the processing 904A, respectively, as in the processing 901A. On the other hand, an attenuation amount corresponding to the distance between the user's position and each sound source is multiplied and output to the subsequent processing 911.

  Further, the output control unit 17 reduces the initial reflected sound attenuation amount of FIG. 6 determined by the determination unit 15 by the processing of step S5 of FIG. 4 with respect to the volume of the direct sound signal of the sound source A 901 by the processing 901B. Is multiplied by the amount of attenuation corresponding to the distance in the data indicating the curve, and output to the subsequent process 921. Further, the output control unit 17 sets the volume of the direct sound signal of each sound source to the sound source B 902, the sound source C 903, and the sound source D 904 by the processing 902B, the processing 903B, and the processing 904B, respectively, similarly to the processing 901B. On the other hand, the determination unit 15 multiplies the attenuation amount corresponding to the distance between the user position and each sound source determined for the initial reflected sound, and outputs the result to the subsequent process 921.

  Further, the output control unit 17 reduces the amount of late reverberation sound of FIG. 6 determined by the determination unit 15 by the process of step S5 of FIG. 4 with respect to the volume of the direct sound signal of the sound source A 901 by the process 901C. Is multiplied by an attenuation amount corresponding to the distance in the data indicating the curve, and output to the subsequent process 931. Also, the output control unit 17 sets the volume of the direct sound signal of each sound source to the sound source B 902, the sound source C 903, and the sound source D 904 by the processing 902C, the processing 903C, and the processing 904C, respectively, as in the processing 901C. On the other hand, the determination unit 15 multiplies the attenuation amount corresponding to the distance between the user's position and each sound source determined for the late reverberation sound, respectively, and outputs the result to the subsequent process 931.

  Further, the output control unit 17 synthesizes the direct sound signals of the sound sources output by the processing 901A, the processing 902A, the processing 903A, and the processing 904A by the processing 911, and outputs the synthesized signal to the subsequent processing 941.

  Further, the output control unit 17 synthesizes the direct sound signal of each sound source output by the process 901B, the process 902B, the process 903B, and the process 904B by the process 921, and outputs the synthesized sound signal to the subsequent process 922. In step 922, the reverberation sound generation unit 16 generates the initial reflection reverberation signal data in the initial reflection reverb object in step S6 of FIG. 4 and outputs the generated signal to the subsequent step 941. To do.

  Further, the output control unit 17 synthesizes the direct sound signal of each sound source output by the processing 901C, processing 902C, processing 903C, and processing 904C by the processing 931 and outputs the synthesized signal to the subsequent processing 932. In step 932, the reverberation sound generation unit 16 generates the signal of the late reverberation signal in the sound in the reverberation object for the later reverberation in the process of step S7 in FIG. To do.

  In step 941, the output control unit 17 synthesizes and outputs the direct sound signal, the early reflection sound signal, and the late reverberation sound signal by the process of step S8 in FIG. Thereby, for example, when sounds of a plurality of sound sources are generated at the same time according to the game situation, by sharing the reverb, it is possible to output a reverberation sound with a lower sense of incongruity while reducing processing costs. .

<Effect of embodiment>
If a reverberant sound similar to that in real space is accurately calculated according to the laws of physics, it will be difficult to perform such processing with an actual game machine or the like because enormous calculation costs arise. Therefore, conventionally, reverberation corresponding to direct sound has been generated by an effector in which predetermined parameters are set. In a computer game or the like, there may be a relatively large number of sound sources (sounds) that are simultaneously sounded. Therefore, when using reverb in which parameters corresponding to the positional relationship between the listener and the sound source are set for each sound source, the processing cost is relatively high. Therefore, the reverberation sound for each of the plurality of sound sources can be generated using a predetermined number (for example, five or less) of shared reverbs by adjusting the volumes of the plurality of sound sources that are simultaneously sounded. Conceivable. In this case, the processing cost can be reduced, but the user may feel uncomfortable due to the positional relationship between the listener and each sound source even if the discomfort due to the size, shape, and wall material of the room is relatively small. For example, when the distance between the user and the sound generation source in the virtual three-dimensional space is relatively close or relatively far away, the user may feel uncomfortable due to the positional relationship between the listener and each sound source. In addition, for example, in a VR (Virtual Reality) game, when there is no BGM (Back Ground Music) or the like and the user feels immersive, there is a problem that the user may feel uncomfortable.

  On the other hand, according to the above-described embodiment, the volume of the initial reflected sound of the sound is determined according to the distance between the position of the user in the virtual three-dimensional space of the game and the position of the sound generation source output in the game. The volume of the early reflection sound and the volume of the late reverberation sound according to the distance are determined so that the ratio of the sound to the volume of the late reverberation sound is different. Thereby, it is possible to output a reverberant sound with a lower sense of incongruity. In addition, it is possible to output a reverberant sound with a relatively low sense of incongruity at a low calculation cost compared to a method of calculating accurately according to the physical law.

  As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to such specific embodiment, In the range of the summary of this invention described in the claim, various deformation | transformation・ Change is possible.

  Each functional unit of the information processing apparatus 10 may be realized by cloud computing including, for example, one or more computers. The information processing apparatus 10 may be an online game server that displays a game screen on a user terminal.

DESCRIPTION OF SYMBOLS 10 Information processing apparatus 11 Storage part 111 Reverb setting data 112 Decay curve data 12 Reception part 13 Control part 14 Calculation part 15 Determination part 16 Reverberation sound generation part 17 Output control part

Claims (7)

In the information processing device,
A process of calculating a distance between the position of the user in the virtual three-dimensional space of the game and the position of the sound generation source output in the game;
The volume of the early reflection sound and the volume of the late reverberation sound according to the distance, so that the ratio of the volume of the early reflection sound of the sound and the volume of the late reverberation sound of the sound differs according to the distance, The process of determining each,
A program that executes The calculation process is as follows:
Calculating the distance between the position of the user and the position of the source of the plurality of sounds output in the game,
The determination process is as follows:
For each of the plurality of sounds, the volume of the early reflection sound according to the distance and the late reverberation are such that the ratio of the volume of the early reflection sound and the volume of the late reverberation sound varies according to the distance. Determine the volume of each sound,
The program according to claim 1. The determination process is as follows:
When the distance is less than or equal to a predetermined threshold, the volume of the initial reflected sound is determined to be equal to or higher than the volume of the late reverberation sound, and when the distance is greater than the predetermined threshold, the volume of the initial reflected sound is Determining the volume to be lower than the volume of the late reverberation,
The program according to claim 1 or 2. The determination process is as follows:
The initial reflection according to the distance set according to a type of the sound, a space in a virtual three-dimensional space where sound is generated in the game, or a space in a virtual three-dimensional space where sound is generated in the game Based on the setting data of the sound volume and the setting data of the volume of the late reverberation sound according to the distance, the volume of the early reflection sound and the volume of the late reverberation sound according to the distance are determined, respectively.
The program according to any one of claims 1 to 3. In the information processing apparatus,
Adjusting the amplitude of the direct sound of the sound according to the volume of the initial reflected sound determined by the determining process, and generating the initial reflected sound based on the adjusted direct sound of the first amplitude; ,
Adjusting the amplitude of the direct sound of the sound according to the volume of the late reverberation sound determined by the determining process, and generating the late reverberation sound based on the adjusted direct sound of the second amplitude; ,
A process of synthesizing and outputting the generated early reflection sound and the late reverberation sound;
The program according to any one of claims 1 to 4, wherein the program is executed. Information processing device
A process of calculating a distance between the position of the user in the virtual three-dimensional space of the game and the position of the sound generation source output in the game;
The volume of the early reflection sound and the volume of the late reverberation sound according to the distance, so that the ratio of the volume of the early reflection sound of the sound and the volume of the late reverberation sound of the sound differs according to the distance, The process of determining each,
Information processing method to execute. A calculation unit for calculating a distance between the position of the user in the virtual three-dimensional space of the game and the position of the sound generation source output in the game;
The volume of the early reflection sound and the volume of the late reverberation sound according to the distance, so that the ratio of the volume of the early reflection sound of the sound and the volume of the late reverberation sound of the sound differs according to the distance, A determination unit for determining each,
An information processing apparatus.

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