JP2002156973A - Unit and method for controlling sound generation of game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a unit and a method for sound generation control which can simultaneously generate all of a secured number of necessary sounds without any missing sound during game progress. SOLUTION: When a sounding instruction for an effect sound is received while the voices of a sound source are all in use, the voice which is sounded first among voices used for BGM is muted and assigned as the voice of the effect sound.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound control device and a sound control method for controlling sound generation of a plurality of sounds such as background music (BGM) and sound effects in a game machine.

[0002]

2. Description of the Related Art Generally, a game machine outputs BGM and sound effects while a game is in progress. BGM
Is output almost continuously from the start to the end of the game, and the sound effect is output in a predetermined case according to the button operation or the state of the screen. For example, when a bullet is fired at the target or when the bullet hits the target, a sound effect corresponding to the situation is output. In order to generate such BGM and sound effects, the game machine has a built-in sound source in which a plurality of voices (sound data) are stored, and each voice is assigned as BGM or sound effects according to a sounding instruction.

[0003]

However, since the number of voices stored in the sound source is limited, voices exceeding the number cannot be generated simultaneously. For example, if the total number of voices of the sound source is 16, 13 voices are being generated as BGM, and if 3 voices are being generated as sound effects, all voices are being used. Even if a new pronunciation command is issued, 17 sounds cannot be produced simultaneously. In this case, if the newly generated sounding command is ignored, if the sounding command is a sound effect sounding command, a sound effect such as a shooting sound of a bullet will not sound even if a button is operated even if a button is operated. This leads to undesired results when considering the function of.

Therefore, in order to avoid this, it is necessary to erase one of the voices being sounded and to assign it as a voice of a new sound effect. The present invention is an invention relating to a method of allocating sounds in such a case, in which a required sound is not lost during the progress of a game, and it is possible to simultaneously generate a required number of required sounds. A sound control device and a sound control method are provided.

[0005]

In order to solve the above-mentioned problems, the present invention provides a method in which all of a plurality of voices receive a sounding instruction for a sound (for example, a sound effect) in use. A predetermined voice among the voices used as other sounds (for example, BGM) is muted, and the muted voice is assigned as the voice of the sound that has received the sounding command.

[0006] In this way, even when all voices are in use, it is possible to assign a sound for which a new tone generation command has been received, so that it is possible to generate the sound whenever necessary. In addition, it is possible to prevent the function of the game machine from being impaired due to the lack of necessary sounds.
In addition, by assigning the voice of the sound (for example, the sound effect) that has received the sounding instruction to the voice of another sound (for example, BGM) in priority, the required number of sounds can be simultaneously generated.

[0007] The sound control device of the present invention is provided with a sound control unit for assigning which of a plurality of sounds to use. Further, a sound source management table is provided which records information indicating whether each voice is in use and which of a plurality of sounds is being used. Make an assignment. There are several ways to mute a voice that is being used as another sound. For example, it is conceivable to mute the earliest-produced voice (last-arrival priority) or mute the earliest-produced voice except for a specific voice with a higher priority. For this reason, a sound generation history table for managing the sound generation order of each voice is provided, and the sound control unit determines the voice to be silenced by referring to the table. As another method, among the used voices, the voice having the lowest output level may be muted.

In a typical embodiment of the present invention, sound effects and BGM are used as a plurality of sounds. Here, when the number of voices used as sound effects is predetermined (for example, three sounds), the number of voices used as sound effects does not reach the number of voices, and all voices of the sound source ( When (for example, 16 tones) is in use, the voice in use is muted for the BGM, and the voice is assigned as a sound effect voice. On the other hand, if the number of voices in use as the sound effect has reached the number of voices, the voice of the sound effect that is sounded first is muted, and the muted voice is assigned as a voice of a new sound effect. In this case, the earliest sound effect disappears, but there is no problem because the sound effect of the maximum number of voices (three sounds) is maintained. If the number of voices in use as the sound effect does not reach the number of voices and there is an unused voice in the sound source, the unused voice may be assigned as the voice of the sound effect.

[0009]

FIG. 1 is a front view of a game machine according to an embodiment of the present invention. In the present embodiment, the game machine 1
00 is configured as a mobile phone, and a mobile phone having a game function as one function is taken as an example. In FIG. 1, 1 is a key input unit composed of various operation keys, 2 is a voice input unit composed of a microphone, 8 is a voice output unit composed of a speaker, 11 is a display unit composed of a liquid crystal display or the like, and 13 is a communication unit. An antenna to perform.

FIG. 2 is an electric block diagram showing a hardware configuration of the game machine 100. Reference numeral 1 denotes a key input unit, and 2 denotes a voice input unit, which are the same as those shown in FIG. 3 is a ROM constituting a storage unit (memory)
Various programs necessary for use as a telephone or a game machine are stored. 4 is a storage unit (memory)
Has an area for storing various data. Reference numeral 5 denotes a CPU as a control unit that controls the entire game machine 100.

Reference numeral 6 denotes a sound source LSI having a built-in sound source 60. The sound source 60 stores a plurality of voices (sound data) for generating BGM and sound effects during the progress of the game. Reference numeral 7 denotes a D / A converter, which is a sound source LSI 6
The voice of the digital signal output from is converted into an analog voice signal. Reference numeral 8 denotes the audio output unit described with reference to FIG. 1, which outputs the audio signal from the D / A converter as BGM and sound effects. Reference numeral 9 denotes a voice processing unit for processing voice when used as a telephone, and its output is given to a voice output unit 8. Reference numeral 10 denotes an image processing unit for processing an image displayed on the display unit 11, and reference numeral 11 denotes the display unit described with reference to FIG.
Reference numeral 12 denotes a communication unit for performing transmission and reception when used as a telephone, and includes the antenna 13 and the transmission and reception circuit in FIG. Although not shown, a power supply unit for supplying power to each unit is provided in addition to the above.

FIG. 3 is a diagram showing a software configuration of the game machine 100. Reference numeral 20 denotes a game program required for playing a game, which is stored in the ROM 3.
The game program 20 is provided for each type of game. Reference numeral 21 denotes BGM data for playing BGM during the progress of the game, for example, MIDI (Musi).
cal Instrument Digital Interface) data. Reference numeral 22 denotes sound effect data for generating a sound effect during the progress of the game, and is composed of, for example, an electronically synthesized sound. The sound effect data 22 may be composed of MIDI data. These data 21 and 22 are generated by the sound source 6
0 is stored. Reference numeral 23 denotes player software for reproducing MIDI data constituting the BGM data 21.
It is stored in the ROM 3.

An assigner 24 includes a program for assigning the voice of the sound source 60 to BGM and sound effects. The assigner is stored in the ROM 3. The assigner 24 and the CPU 5 constitute a sound generation controller of the present invention. The assigner 24 receives a BGM sounding command from the port A among the sounding commands according to the game program 20, receives a sound effect sounding command from the port B, and uses the voice of the sound source 60 for the BGM or for the sound effect. Is performed. Here, the port A and the port B mean ports (handles) on software for transferring data.

FIG. 4 shows a sound source management table 30 and a tone generation history table 40 which the assigner 24 refers to when assigning voices. These tables 3
0 and 40 are provided in the RAM 4.

The sound source management table 30 has a sound source number 31
And status 32 and port 33 for each sound source number
Is recorded. The sound source number 31 corresponds to each voice stored in the sound source 60. Here, the case where there are 16 voices is taken as an example.
It has become. The status 32 is information indicating whether or not each voice is in use. “ON” indicates that the voice is in use, and “OFF” indicates that the voice is unused. The port 33 is information indicating whether the voice being used is used as BGM or sound effect. As described above, since the BGM sounding instruction is given to the port A, “A” indicates that it is used as BGM,
Since the sound effect sounding instruction is given to port B, "B"
Indicates that it is used as a sound effect.

In this embodiment, the sound source numbers 1 to 1
Out of 6, 1 to 13 are assigned as a port A area (hereinafter, referred to as an A area) 34, and 14 to 16 are assigned as a port B area (hereinafter, referred to as a B area) 35. That is, in the A area 34, 13
Voices are secured, and three voices are reserved in the B area 35 for sound effects.

The sounding history table 40 includes a sounding history table 41 for port A and a sounding history table 42 for port B.
In each table, the tone generation order of the voices in use (status ON) in the sound source management table 30 is recorded. The pronunciation order is recorded in chronological order from left to right. For example, in the pronunciation history table 41, “3” at the left end is the earliest voice that has been pronounced first, and “2” at the right end indicates that it is the newest voice that has been pronounced most recently. The same applies to the pronunciation history table 42.

FIG. 5 is a flowchart schematically showing the operation of the game machine 100. When the game machine 100 is first turned on (step S1), an initial screen is displayed on the display unit 11 (step S2). On this initial screen, a menu for selecting various functions is displayed. When a game is selected from the menu (step S3),
The screen is switched, and a game menu is displayed (step S4). Subsequently, when one of the games is selected from the menu (step S5) and the game start button of the key input unit 1 is pressed (step S6), the screen is switched to the screen of the selected game, and the game is started (step S5). S7). During the progress of the game, BGM flows from the audio output unit 8, and a sound effect corresponding to a button operation of the key input unit 1 or a screen state is output from the audio output unit 8.

During the game, when an incoming call signal is received by the communication unit 12 via the antenna 13 (step S).
8; YES), the game is interrupted (step S11),
When the call ends (step S12; YES), the game is started again (step S7). Then, until the game end button is pressed and the game ends (step S
9; NO), and repeat steps S7, S8, S11, and S12. When the game end button is pressed (step S
9; YES), a game end screen is displayed on the display unit 11 (step S10), and a series of operations ends.

FIG. 6 and FIG. 7 are flowcharts when the voice of the sound source 60 is allocated during the execution of the game in the step S7, and show the procedure of the program of the assigner 24 executed by the CPU 5. . Hereinafter, this procedure will be described in detail, but before that, conditions for opening the ports A and B (making them available) will be described. In this example, it is assumed that port A and port B are set under the following conditions. PortA = open (13,1) (1) PortB = open (3,0) (2)

"13" in parentheses in the above (1) represents the number of voices to be reserved. As described with reference to FIG. 4, 13 voices are reserved at the A port. “1” indicates that a new BG is being used in a state where all 13 voices are used as BGM.
When an M sounding command is received, if there is a voice that is not used as a sound effect, this flag is used to permit use of that voice. Therefore, when a sounding command exceeding 13 sounds is received at the A port, 14 or more sounds may be simultaneously sounded.

Similarly, “3” in parentheses in (2) indicates the number of voices to be reserved, and as described in FIG. 4, three voices are reserved at the B port. Also, “0” indicates that when a sound effect command is issued for a new sound effect when all three voices are used as sound effects, even if there is a voice that is not used as BGM, that voice is not used. This is a prohibition flag. Therefore, even if a sounding instruction that exceeds three sounds arrives at the B port, four or more sounds are not simultaneously generated.

The procedure shown in FIGS. 6 and 7 will be described on the premise of the above conditions. When the CPU 5 receives a sound generation command according to the game program 20 (step S21), the CPU 5 first determines whether the command has come to the port A or the port B (step S22). If the command has come to port B, it is a sound effect sounding command, and the process proceeds to the procedure in FIG. This will be described later.

If the instruction comes to port A, it is BG
Next, it is determined whether there is any unused voice in the A area 34 with reference to the sound source management table 30 (step S23). If there is an unused voice in the A area 34 (step S23; YES), this is assigned as a BGM voice for the current tone generation command, and tone generation processing is performed with the unused voice (step S2).
4). Thereafter, the sound source management table 30 and the sound generation history table 41 of the port A are updated (step S25),
It returns to the beginning (step S21).

FIG. 8 shows steps S23 to S25 described above.
(A) is before sound generation processing,
(B) shows a sound source management table and a tone generation history table after tone generation processing. As shown in FIG.
There are unused (status OFF) voices of sound source numbers 11 to 13, and when a sounding instruction comes, a voice of sound source number 11 is assigned. As a result, as shown in (b), the status of the sound source number 11 changes to "ON" (in use), and "A" is recorded in the port. On the other hand, the newly assigned sound source number “11” is added to the pronunciation history table 41 of the port A, and the pronunciation history table 40 is updated.

If there is no unused voice in the A area 34 (step S23; NO), it is determined whether there is an unused voice in the B area 35 (step S26). B area 3
5 has an unused voice (step S26; YE)
S), this is assigned as a BGM voice for the current tone generation command, and tone generation processing is performed with the unused voice (step S27). After that, the sound source management table 30
And the sound generation history table 41 of the port A are updated (step S28), and the process returns to step S21.

FIG. 9 shows steps S26 to S28 described above.
(A) is before sound generation processing,
(B) shows each table after the tone generation process. (A)
A, there is no unused voice in the A area 34,
All voices are in use (status ON). On the other hand, all voices in the B area 35 are unused (status OFF), and no sound effect is generated. In this state, when a sounding instruction is sent to the port A, the use of the unused voice is permitted by the condition (1) of the port A. Therefore, the voice of the sound source number 14 in the B area 35 is allocated and Make them pronounce. As a result, as shown in (b),
The status of the sound source number 14 changes to “ON” (in use), and “A” is recorded in the port. On the other hand, the newly assigned sound source number “14” is added to the pronunciation history table 41 of the port A, and the pronunciation history table 40 is updated.

If there is no unused voice in the B area 35 (step S26; NO), the oldest voice, that is, the earliest voice among the 13 voices being used in the port A is muted ( In step S29, the voice is assigned as a BGM voice for the current sound generation command, and sound generation processing is performed (step S30). After that, the pronunciation history table 41 of the port A is updated (step S31),
It returns to step S21.

FIG. 10 shows steps S29 to S3 described above.
1 shows a specific example, in which (a) shows a state before sound generation processing,
(B) shows each table after the tone generation process. (A)
, All 13 voices in the A area 34 are in use (status ON), and all three voices in the B area 35 are also in use (status ON). In this state, if a sounding instruction is sent to the port A, the voice in the B area 35 cannot be used. Therefore, referring to the sounding history table 40, the voice of the oldest sound source number "3" of the port A is muted. Then, this is assigned to a new voice and sounded. As a result, the content of the sound source management table 30 does not change as shown in (b), but in the sound generation history table 41 of the port A, the sound source number “3” moves from the left end to the right end, and the sound generation history table 40 is updated. You.

Next, a processing procedure when a sound effect sounding instruction comes to the port B will be described with reference to a flowchart of FIG. First, it is determined whether there are three voices in use at the port B (step S41). 3 voices in use
If there are voices (step S41; YES), the oldest voice, that is, the earliest voice generated among the three voices, is muted (step S42), and the voice is used as a sound effect voice for the current voice command. And a sound generation process is performed (step S43). Thereafter, the sound generation history table 42 of the port B is updated (Step S44), and the process returns to Step S21.

FIG. 11 shows steps S41 to S4 described above.
4 shows a specific example, in which (a) shows the state before the pronunciation processing,
(B) shows each table after the tone generation process. (A)
, All three voices in the B area 35 have the port B, and are used as sound effects. On the other hand, there is an unused voice in the A area 34 (sound source number 12, 1
3) The use of an unused voice is prohibited by the condition (2) of the port B. Therefore, when a sounding instruction is received at port B in this state, the sound of the oldest sound source number "14" of port B is muted by referring to sounding history table 40, and this is set as a new sound effect voice. Assign and pronounce. As a result, the content of the sound source management table 30 does not change as shown in (b), but the sound source number “14” moves from the left end to the right end in the sound generation history table 42 of the port B, and the sound generation history table 40 is updated. You. In addition,
In this case, the earliest sound effect will be extinguished, but the maximum number of three sound effects is ensured and these are sounded simultaneously, so there is no problem because they are not lost.

Next, if the number of voices in use at the port B is two or less (step S41; NO), it is determined whether all 16 voices are in use (step S4).
5). If all 16 voices are in use (step S45; YES), the voice in use at port A is muted in order to generate a sound effect by a new tone generation command. The voice to be silenced at this time may be any voice, but in this case, the oldest voice, ie, the earliest voice generated is muted (step S46), and the voice is assigned as a voice for a sound effect for the current voice generation command. Is performed (step S47). After that, the sound source management table 30
And the pronunciation history table 41 for port A and the pronunciation history table 42 for port B are updated (step S
48), and return to step S21.

FIG. 12 shows steps S45 to S4 described above.
8 shows a specific example, in which (a) shows the state before the pronunciation process,
(B) shows each table after the tone generation process. (A)
, The voices of the sound sources 1 to 14 are all A ports and used as BGM.
Each of the two voices is a B port and is used as a sound effect. In this state, when a sounding instruction is sent to the port B, the voice of the oldest sound source number "3" of the port A is muted by referring to the sounding history table 40, and the sound is assigned to the voice of the sound effect and sounded. . As a result, the port of the sound source number "3" in the sound source management table 30 is changed to "B" as shown in FIG.
6 voices are reserved. Also, the earliest sound source number “3” is deleted from the sound generation history table 41 of the port A, and the sound source number “3” is added to the sound generation history table 42 of the port B instead.
Is updated. In this case, the earliest BGM sound disappears, but for example, only a part of the sound, such as the sound of the piano that has been sounding, disappears, and this does not cause a serious problem.

After steps S41 and S45, step S
A series of procedures from 46 to step S48 is a characteristic part of the present invention. In this way, even when all 16 voices are in use, a sound effect can be assigned when a new sounding instruction comes. In addition, three sound effects can be generated simultaneously, and the maximum number of sound effects (here, three voices) can be generated.

Next, if any of the 16 voices is not in use (step S45; NO), it is determined whether or not there is an unused voice in the B area 35 (step S4).
9). If there is an unused voice in the B area 35 (step S49; YES), this is assigned as a voice for a sound effect for the current sound generation command, and sound generation processing is performed with that voice (step S50). After that, the sound source management table 3
0 and the sound generation history table 42 of the port B are updated (step S51), and the process returns to step S21.

FIG. 13 shows steps S49 to S5 described above.
1 shows a specific example, in which (a) shows a state before sound generation processing,
(B) shows each table after the tone generation process. (A)
, There are 11 voices in use at the port A (sound source numbers 1 to 11), two voices in use at the port B (sound source numbers 15 and 16), and three unused voices (sound sources). Sound source numbers 12 to 14). In this state, when a sounding instruction is sent to the port B, since there is one unused voice in the B area 35 (sound source number 14), the voice is assigned and sounded. As a result, the status of the sound source number 14 changes to “ON” and “B” is recorded in the port as shown in FIG. On the other hand, the newly assigned sound source number “14” is added to the sound generation history table 42 of the port B, and the sound generation history table 40 is updated.

On the other hand, if there is no unused voice in the B area 35 (step S49; NO), it means that there is an unused voice in the A area 34. (Step S5).
2). Thereafter, the sound source management table 30 and the sound generation history table 42 of the port B are updated (step S53),
It returns to step S21.

FIG. 14 shows steps S49 and S5 described above.
2, a specific example in S53 is shown, (a) shows a sound source management table and a sound generation history table before sound generation processing, and (b) shows a sound generation management table after sound generation processing. As shown in FIG.
All 5 voices are in use, and the A area 34 has 2 voices.
There are unused voices (sound source numbers 12 and 13). In this state, when a sounding instruction is sent to port B, a voice of sound source number 12 is assigned. As a result, as shown in (b),
The status of sound source number 12 changes to "ON", and
“B” is recorded in the port. On the other hand, in the sound generation history table 42 of the port B, the newly assigned sound source number “1”
2 ”is added, and the pronunciation history table 40 is updated.

The present invention can adopt various modes other than those described above. For example, in the above-described embodiment, an example in which the game program 20 is stored in the ROM 3 in advance has been described. However, as shown in FIG.
5, a game program is stored in the storage medium 1.
The present invention can also be applied to a case where the mobile phone 4 is mounted on a portable telephone 101 and the telephone 101 is used as a game machine. The present invention is also applicable to a mobile phone that receives a game program via the Internet or the like.
Further, the game machine is not limited to the one used also as the portable telephone as described above, and may be a game dedicated machine.

In the above embodiment, the sound source numbers 1 to 13 are fixedly assigned to the port A area, and the sound source numbers 14 to 16 are fixedly assigned to the port B area. However, this is essential for the present invention. No, each port is sound source number 1
-16 may be randomly assigned. Further, the number of voices of the sound source is not limited to 16 as a matter of course, and an arbitrary number can be adopted.

Furthermore, in the above embodiment, the conditions such as the above (1) and (2) are set as the conditions for opening the port A and the port B, but this is also an example, and the present invention It is not limited to this condition. For example, in the condition (1) of the port A, the flag is set to “1”, but it can be set to “0”. In this case, when a new tone generation command is received at port A in a state where all the BGM voices are used, even if there is a voice not used as a sound effect, the use of that voice is prohibited. . The condition of port B (2)
Although the flag is set to “0” in this example, the flag may be set to “1”. In this case, when a new sounding instruction is received at port B in a state where all voices of sound effects are used, if there is a voice not used as BGM, use of that voice is permitted. In addition, port A
The flag may be set to “0” for both port A and port B, or the flag may be set to “1” for both port A and port B.

In the above embodiment, when the voice is muted, the earliest (oldest) voice is muted in accordance with the last-arrived priority. The voice with the lowest output level may be muted. The output level of the voice can be detected by the CPU 5 referring to a register (not shown) of the sound source LSI 6. Also, among the voices of the sound source, the melody, drum, and bass voices have a higher priority, so that even the earliest voice is not muted, and the other voices are muted according to the later arrival priority. You may make it.

In the above embodiment, when the voice is muted, the sound generation order is managed independently in the A area and the B area.
The pronunciation order may be managed over the entire voice. In this case, the tone generation order may be assigned to each voice in the sound source management table 30 so that the tone generation history table also serves as the sound source management table.

Further, in the above-described embodiment, an example has been described in which the BGM voice is muted when the sound effect and the BGM are used simultaneously. For example, when the game scene (scene) changes without the sound effect. , From BGM disappearing at the end of the scene, B used newly at the start of the scene
The present invention is also applicable to voice allocation when switching to GM. In this case as well, according to the same principle as described above, the voice at the end of the scene is muted and assigned to the voice at the start of the scene, so that it is possible to avoid a loss of sound at the start of the scene. In addition, the present invention is applicable not only to two types of sounds, sound effects and BGM, but also to a case where three or more types of sounds including an announcement and the like are assigned.

[0045]

According to the present invention, even when all the voices are in use, it is possible to assign the sound for which the sounding instruction has been received and sound the sound, so that the necessary sound is lost during the progress of the game. And it is possible to simultaneously generate the required number of required sounds all at the same time.

[Brief description of the drawings]

FIG. 1 is a front view of a game machine according to an embodiment of the present invention.

FIG. 2 is an electric block diagram showing a hardware configuration of the game machine.

FIG. 3 is a diagram showing a software configuration of the game machine.

FIG. 4 is a diagram showing a sound source management table and a sound generation history table.

FIG. 5 is a flowchart schematically showing an operation of the game machine.

FIG. 6 is a flowchart in the case of assigning a voice of a sound source.

FIG. 7 is a flowchart continued from FIG. 6;

FIG. 8 is a diagram illustrating a specific example in the case of assigning voices.

FIG. 9 is a diagram illustrating a specific example in the case of assigning voices.

FIG. 10 is a diagram illustrating a specific example in the case of assigning voices.

FIG. 11 is a diagram illustrating a specific example in the case of assigning voices.

FIG. 12 is a diagram illustrating a specific example in the case of assigning voices.

FIG. 13 is a diagram illustrating a specific example in the case of assigning voices.

FIG. 14 is a diagram illustrating a specific example in the case of assigning voices.

FIG. 15 is a front view of a game machine according to another embodiment.

[Description of Signs] 1 Key input unit 5 CPU 6 Sound source LSI 8 Audio output unit 11 Display unit 24 Assigner 30 Sound source management table 40 Sound generation history table 60 Sound source 100 Game machine

Continued on the front page F term (reference) 2C001 BA00 BA07 BC00 BC04 BC09 CB01 CC03 CC08 DA06 5D378 CC42 CC46 HA08 JC00 MM21 MM54 MM55 MM58 XX06 XX10 5K027 AA11 HH26

Claims (10)

[Claims] 1. A sound source storing a plurality of voices for generating a plurality of sounds different from each other during the progress of a game, and a sound generation control unit for assigning a voice of the sound source to one of a plurality of sounds. The sounding control unit, when receiving a sounding command for a sound in a state where all of the plurality of voices are in use, a predetermined voice among voices used as other sounds other than the sound A sound control device for a game machine, wherein the sound is muted and the muted voice is assigned as a voice of a sound that has received a sound command. 2. The sound source control device for a game machine according to claim 1, further comprising a sound source management table that records information indicating whether each voice is being used and which of a plurality of sounds is being used. The sound control unit of the game machine, wherein the sound control unit performs voice assignment with reference to the sound source management table. 3. The sound generation control device for a game machine according to claim 1, wherein the sound generation control unit mutes a voice that is generated first among voices used as other sounds. A sound control device for a game machine. 4. The sound generation control device for a game machine according to claim 1, wherein the sound generation control unit excludes a specific voice having a high priority among voices used as other sounds. A sound control device for a game machine, wherein a voice generated first is muted. 5. A sound generation control device for a game machine according to claim 3, further comprising a sound generation history table for managing a sound generation order of each voice, wherein said sound generation control unit refers to said table. A sound control device for a game machine, wherein a voice to be silenced is determined by the following. 6. The sound control device for a game machine according to claim 1, wherein said sound control unit mutes a voice having the lowest output level among voices used as other sounds. A sound control device for a game machine. 7. A sound source storing a plurality of voices for generating a BGM and a sound effect during the progress of a game, and a sound generation control unit for assigning whether the voice of the sound source is used for a BGM or a sound effect. When receiving a sound effect sounding instruction in a state where all of the plurality of voices are in use, the sounding control unit mutes a predetermined voice among the voices used as BGM, and A sound control device for a game machine, wherein the selected voice is assigned as a sound effect voice. 8. A sound control device for a game machine according to claim 7, wherein the number of voices used as sound effects is determined in advance, and said sound control unit receives a sound sound instruction from said sound effect unit. ,
When the number of voices used as sound effects has not reached the number of voices, and all voices of the sound source are in use, a predetermined voice among the voices used as BGM is muted. If the number of the voices used as the sound effects has reached the number of voices, the mute voice is assigned as the voice of the sound effect. A sound control device for a game machine, wherein a sound is muted and the muted voice is assigned as a voice of a new sound effect. 9. The sound control device for a game machine according to claim 8, wherein the sound control unit is configured to determine that the number of voices used as sound effects has not reached the number of voices, and that the voice of the sound source is not included. A sound control device for a game machine, wherein when there is a used voice, the unused voice is assigned as a sound effect voice. 10. A sound source storing a plurality of voices,
In a game machine that outputs a plurality of sounds different from each other based on the voice during the progress of a game, when a sounding command is issued for a sound in a state where all of the plurality of voices are in use, a sound other than the sound is issued. Sounding control method for a game machine, wherein a predetermined voice among the voices used as the sound is muted, and the muted voice is assigned as the voice of the sound that has received the sounding command.