JP2005065994A - Pinball game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a game machine where sound performance with low-pitched sound is realized. <P>SOLUTION: This pinball game machine comprises: an outer frame 3 in the shape of a rectangular frame; a front frame 4 pivoted in the state of being openable and closable with respect to the outer frame 3; and a lower part sound output part VO<SB>L</SB>fixed to the lower part of the outer frame 3. By boring a through hole at the upper part of the front frame 4, an upper part sound output part VO<SB>U</SB>is fitted. At the front frame 4, all the main parts of the game machine excepting for the lower part sound output part VO<SB>L</SB>are mounted. The lower part sound output part VO<SB>L</SB>is constituted by arranging speakers SP<SB>L</SB>respectively in a pair of right and left speaker boxes 16R and 16L. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a ball game machine such as a pachinko machine, an arrangement ball machine, or a sparrow ball game machine, and more particularly to a ball game machine capable of powerful sound production.

  A gaming machine is generally composed of a plurality of circuit boards separated by function, and the plurality of circuit boards operate synchronously based on control commands, thereby realizing a complex gaming operation as a whole. Such a gaming machine is generally composed of a main control board that outputs a control command and a plurality of sub-control boards that operate based on the control command from the main control board.

  Sub-control boards include, for example, a symbol control board that controls a liquid crystal display, a payout control board that controls the payout operation of a game ball by driving a payout motor, a lamp control board that blinks an LED lamp, and a voice control that drives a speaker. There are substrates and the like. In the voice control board, the player is excited by the voice effect synchronized with the symbol effect on the liquid crystal display.

In order to realize more powerful effects in such audio effects, a configuration in which four speakers are arranged has also been proposed (Patent Document 1). In this gaming machine, four thin flat speakers are arranged on the left and right sides of the rectangular frame holding the gaming machine, and specifically, the thin flat speakers are provided on the back surface of the surface member covering the rectangular frame. The sound output from each speaker is appropriately varied by a programmable attenuator.
JP 2002-58799 A

  However, with such a thin flat speaker, the generated sound lacks depth, and in particular, the sound is not powerful in low sounds. In addition, when reproducing the audio data stored in the memory, it is necessary to control the volume of the audio signal output from each speaker in real time, and the control of the programmable attenuator is extremely complicated. is there.

  In the configuration described in Japanese Patent Application Laid-Open No. 10-314376, since there is a single bass speaker, it is not powerful, and since the speaker is located at the upper part of the handle portion, heavy bass is directly applied to the abdomen of the player. I can't tell you. There are also proposals such as Japanese Patent Application Laid-Open Nos. 2003-79832 and 2003-79833, but the game hall is in an extremely noisy environment rather than a balanced output of bass and treble as an audiophile. Considering this, it is more effective and powerful to transmit only the deep bass directly to the player's abdomen from the bottom of the gaming machine.

  The present invention has been made in view of the above-mentioned problems, and in consideration of the installation environment of the gaming machine, while simplifying the acoustic configuration, a game that enables powerful sound production with heavy bass It is an object to provide a machine.

  In order to solve the above-described problem, a ball game machine according to claim 1 includes a rectangular frame-shaped outer frame (3), and a front frame (4) pivotally attached to the outer frame so as to be openable and closable. It consists of a glass frame pivotally attached to the front frame so as to be openable and closable, and a lower audio output unit fixed to a lower part of the outer frame, and an upper audio output unit is provided on the upper part of the front frame or glass frame. In addition, a part or all of the main part of the gaming machine excluding the lower audio output unit is mounted on the front frame, and the lower audio output unit arranges speakers in a pair of left and right speaker boxes. Each speaker of the lower sound output unit is configured to output a sound in which a low frequency is emphasized as compared with the upper sound output unit.

  Here, the audio output unit means a speaker and its attached members. In the present invention, the lower audio output unit is configured by arranging speakers in a pair of left and right speaker boxes. Therefore, powerful deep bass can be output toward the abdomen of the player. In addition, since the upper voice unit and the lower voice unit are provided, it is possible to realize a powerful voice moving effect in the vertical direction.

  In the present invention, the lower sound output unit outputs a sound in which a low frequency is emphasized as compared with the upper sound output unit. Specifically, (a) audio data that emphasizes the low frequency is processed and stored in a memory, etc., and (b) the audio signal that is analog-converted from the audio data is amplified with the low frequency emphasized. It is preferable to employ all or a part of using an amplifier circuit having frequency characteristics and (c) using a speaker having frequency characteristics that can output to a low frequency range.

  Particularly preferably, the upper audio output unit and the lower audio output unit should be supplied with an audio signal processed by an integration circuit after class D amplification of the digital signal. In this case, since no power is consumed when no sound is output, such as class A amplification, a powerful sound effect can be realized with low power consumption.

  Each of the pair of speaker boxes has a built-in center box adjacent to each other, and each center box is provided with an audio outlet on the front side, while the back side is opened to be an audio inlet. Since the center box functions as a port, a bass reflex enclosure can be realized, and more powerful bass can be output.

  The present invention preferably includes a main control unit that mainly controls a gaming operation, a symbol control unit that controls the display unit, and an effect control unit that realizes an audio effect and a lamp effect, The operation is based on the control command received from the symbol control unit. Alternatively, in a gaming machine comprising: a main control unit that mainly controls gaming operations; and a sub-control unit that receives control commands directly or indirectly from the main control unit to realize individual gaming operations. The control unit is positioned between the first substrate and the audio output unit, which is equipped with a computer circuit that identifies a series of presentation operations based on the control command, and realizes a signal transmission / reception operation. It is also preferable that the second substrate is configured separately.

  According to the present invention described above, it is possible to realize a gaming machine that enables a sound production that has a powerful bass sound while simplifying the acoustic configuration. Further, the configuration of the present invention is correctly adapted to the installation environment of the gaming machine.

  Hereinafter, embodiments of the present invention will be described based on the gaming machines shown in FIGS. FIG. 1 is a front view showing a pachinko machine 1 according to the present embodiment, and FIG. 2 is a right side view of the pachinko machine 1. Note that a plurality of pachinko machines 1 are arranged in the length direction of the island structure of the pachinko hall while being electrically connected to the card-type ball lending machine 2.

As shown in FIG. 2, the illustrated pachinko machine 1 is pivotable so that it can be opened and closed via a rectangular frame-shaped wooden outer frame 3 that is detachably attached to the island structure and a hinge H fixed to the outer frame 3. a front frame 4 being worn, and a in the lower part of the front frame 4 and the fixed lower audio output unit VO _L to the outer frame 3. The front frame 4 are mounted all the major portion of the gaming machine, except for the lower sound output unit VO _L, specifically, the game board 5 is detachably mounted from the back side, the front side thereof, glass The door 6 and the front plate 7 are pivotally attached so as to be openable and closable (FIG. 1).

As shown in FIG. 1, the upper portion of the glass door 6, passage holes 8, 9 of the upper sound output unit VO _U is formed. A large number of small-diameter openings are formed in the passage holes 8 and 9, and two speakers SP _U and SP _U are provided in front of the front frame 4 corresponding to the positions of the passage holes 8 and 9. It is attached through the frame 4 (FIGS. 3 and 4). Thus, since the upper speaker SP _U is embedded through the front frame 4, it is possible to increase the size of the speaker. In any case, the upper speaker SP _U outputs a sound in a bass cut state and a relatively emphasized sound of a high tone.

  As shown in FIG. 1, the front plate 7 is provided with an upper plate 10 for storing game balls for launch, and a lower portion of the front frame 4 stores game balls overflowing or extracted from the upper plate 10. A dish 11 and a firing handle 12 are provided. The launch handle 12 is linked to a launch motor, and a game ball is launched by a striking rod that operates in accordance with the rotation angle of the launch handle.

  An operation panel 13 for ball lending operation for the card-type ball lending machine 2 is provided on the right side of the upper plate 10, and this operation panel 13 includes a card remaining amount display unit for displaying the remaining amount of the card with a 3-digit number. A ball lending switch for instructing lending of game balls for a predetermined amount of money and a return switch for instructing to return the card at the end of the game are provided.

At the bottom of the front frame 4 having the above respective members, the lower the sound output unit VO _L is provided. The audio output unit VO _L, as shown in FIGS. 5 and 7, the speaker box 16L which is closed by the front box 14 and the rear box 15, in the 16R, the speaker _SP L, respectively, to accommodate the SP _L It is configured.

Lower audio output unit VO _L is a portion for outputting to emphasize bass, two speakers SP _L is housed in a dedicated speaker box 16L, 16R, respectively. Therefore, it is possible to output a powerful bass sound that directly stimulates the player's abdomen. As described above, the front box 14 and the rear box 15 are both fixed to the outer frame 3 and provided at different positions from the front frame 4.

As shown in FIG. 6, the front box 14 holds the left and right speakers SP _L and SP _L, and a center box 17L. 17R is formed. A large number of sound passage openings are formed in front of each speaker SP _L , and the center box 17L. A plurality of (three) rows of opening grooves 18 are provided on the front surface of 17R. As shown in FIG. 7C, the center box 17L. 17R is configured such that left and right boxes having a U-shaped cross-section are substantially closed by a central partition 19 and open toward the back.

  And the partition part 19 is formed shorter than the length of the front-back direction of center box 17R, 17L. However, when the front box 14 and the rear box 15 are assembled, the protruding part 20 of the rear box 14 is fixed in contact with the partition part 19 (FIG. 7 (a)). 17R and 17L are acoustically separated. Note that a cut groove 21 for allowing a wiring cable to a speaker to pass therethrough is formed in the lower portion of the partition portion 19.

As described above, in this embodiment, the speakers SP _L and SP _L accommodated in the dedicated speaker boxes 16R and 16L are arranged on the left and right of the player's abdominal position, and the center is located at the center. Boxes 17R and 17L are provided. For this reason, the center box functions as a port (a part that outputs sound in the same phase as the sound on the front of the speaker) and outputs a bass sound that is comparable to a thin flat speaker that can realize a bass reflex enclosure. It becomes possible.

  As shown in FIG. 8, the game board 5 is provided with a guide rail 22 formed of a metal outer rail and an inner rail in an annular shape, and a liquid crystal color display DISP is provided at the approximate center of the game area 23 inside thereof. Has been placed. In addition, at a suitable place in the game area 23, a symbol start port 24, a big winning port 25, a plurality of normal winning ports 26 (four on the left and right sides of the big winning port 25), and a gate 27 which is two passing ports are arranged. Has been. Each of the winning holes 24 to 26 and the gate 27 has a detection switch so that the passage of the game ball can be detected.

  The liquid crystal display DISP is a device that variably displays a specific symbol related to a big hit state and displays a background image and various characters in an animated manner. The liquid crystal display DISP has special symbol display portions Da to Dc in the center portion and a normal symbol display portion 28 in the upper right portion. The normal symbol display unit 28 displays a normal symbol. When a game ball that has passed through the gate 27 is detected, the displayed normal symbol fluctuates for a predetermined time, and a lottery is drawn when the game ball passes through the gate 27. The stop symbol determined based on the random number for lottery is displayed and stopped.

  The symbol start opening 24 is opened and closed by an electric tulip having a pair of left and right opening and closing claws 24a. When the stop symbol after the fluctuation of the normal symbol display unit 28 hits and the symbol is displayed, the opening and closing claw 24a is only for a predetermined time. It is designed to be opened. When a game ball wins the symbol start opening 24, the display symbols of the special symbol display portions Da to Dc fluctuate for a predetermined time (this is referred to as symbol change operation), and according to the winning timing of the game ball to the symbol start opening 24 It stops with the stop symbol pattern determined based on the lottery result.

  The special winning opening 25 is controlled to be opened and closed by an opening / closing plate 25a that can be opened forward. When the stop symbol after the symbol variation of the special symbol display portions Da to Dc is a winning symbol such as “777”, “big hit” is obtained. A special game is started and the opening / closing plate 25a is opened. In addition, after the two symbols of the special symbol display parts Da to Dc are stopped in a predetermined mode (for example, “7 * 7”), the remaining one symbol (*) is changed while raising the player's expectation. The production is called reach production, and after reaching such reach production, it becomes a big hit state.

  When the big hit state is reached and the special game is started, the open / close plate 25a of the big winning opening 25 is opened and the game ball is won very easily. Then, after the opening / closing plate 25a is opened, the opening / closing plate 25a is closed when a predetermined time elapses or when a predetermined number (for example, 10) of game balls wins. At this time, if the game ball does not pass through the specific area 25b, the special game ends, but if it passes through the specific area 25b, the special game is continued up to, for example, 16 times, which is advantageous to the player. To be controlled. Furthermore, when the stop symbol after the change is a certain symbol of the special symbols (hereinafter referred to as a specific symbol), a privilege of shifting to a high probability state is given after the special game ends.

  As shown in FIG. 9, a back mechanism plate 30 that presses the game board 5 from the back side is detachably attached to the back side of the front frame 4. On the upper side of the back mechanism plate 30, a prize ball tank 31 and a tank rail 32 extending therefrom are provided. A payout device 33 connected to the tank rail 32 is provided on the side of the back mechanism plate 30, and a passage unit 34 connected to the payout device 33 is provided below the back mechanism plate 30. The game ball paid out from the payout device 33 is paid out to the upper plate 10 from the upper plate discharge port via the passage unit 34.

  At the center position of the back mechanism plate 30, a symbol control board 36 is mounted on the back side of the liquid crystal display DISP, and a main control board 35 is mounted on the lower side thereof. In addition, an effect control board 37 is mounted at a position overlapping the symbol control board 36. In the case of the present embodiment, the effect control board 37 is divided into an effect main board 37A and an effect sub-board 37B for interface.

  A power supply board 38 and a payout control board 40 are provided below the main control board 35. A launch control board 39 is provided on the rear side of the launch handle 12. These circuit boards 35 to 40 are respectively configured independently, and a computer circuit including a one-chip microcomputer is mounted on the control boards 35 to 39 excluding the power supply board 40 and the launch control board 39.

  FIG. 10 is a circuit block diagram showing a circuit configuration of the pachinko machine 1 described above. As shown in the figure, the pachinko machine 1 drives a main control board 35 that mainly controls gaming operations, a symbol control board 36 that changes characters and symbols displayed on the liquid crystal display DISP, and four speakers. In addition, an effect control board 37 that realizes a sound effect and a lamp effect by flashing lamps, a payout control board 38 that pays out a game ball, a launch control board 39 that launches a game ball, and a DC voltage applied to each part of the apparatus And a power supply board 40 for supplying a system reset signal SRST to the reset circuit of each control board.

  The symbol control board 36 and the effect control board 37 are connected in a configuration conforming to RS232C so that serial data TXD and RXD can be transmitted and received. Further, the main control board 35 transmits an appropriate control command (16-bit parallel data) to the symbol control board 36 and the payout control board 38 at a necessary timing, and based on this control command, the rendering operation and the game ball The payout operation is realized. In this embodiment, the control command has a 16-bit length and is transmitted separately every 8 bits.

The control command transmitted from the main control board 35 to the symbol control board 36 is an effect command CMD ₁ related to the effect operation, and the control command transmitted from the main control board 35 to the payout control board 38 is used for paying out a game ball. The payout command CMD ₂ concerned. More specifically, the effect command CMD ₁ transmitted to the symbol control board 36 is a common effect command CMD that is commonly used for the symbol effect on the liquid crystal display DISP, the sound effect by the speaker, and the lamp effect by the LED or the like. _1A and an individual effect command CMD _1B individually used for a symbol effect, a sound effect, or a lamp effect.

In the pachinko machine, when a game ball wins at the symbol start opening, the display symbol fluctuates on the liquid crystal display DISP, and after reaching a reach effect etc. It is to be confirmed. Therefore, in the present embodiment, for the common effect command CMD _1A that defines such a series of effect operations, only the result of whether or not it is a big hit state and the effect total time are specified, and the specific effect contents are not specified. It is transmitted to the symbol control board 36.

Upon receiving the common effect command CMD _1A , the symbol control board 36 selects and determines specific effect contents by effect lottery, and transmits a new effect command CMD _1A ′ for specifying the determined contents to the effect control board 37. At the same time, the symbol changing operation on the liquid crystal display DISP is started in accordance with the determined contents. When the individual effect command CMD _1B , which is not related to the symbol effect on the liquid crystal display DISP and is specific to the sound effect or the lamp effect, is received, the symbol control board 36 transfers this to the effect control board 37 as it is.

As described above, the effect control board 37 is divided into an effect main board 37A and an effect sub-board 37. The effect main board 37A is provided with a plurality of decorative boards 42... 42 via the lamp relay board 41. And an appropriate lamp effect is realized based on a control command (CMD _1A ′ or CMD _1B ) received from the symbol control board 36.

In addition, the production main board 37A specifies a series of audio information to be output based on the control command (CMD _1A ′ or CMD _1B ) received from the symbol control board 36, and the upper audio through the production sub board 37B. driving the output unit VO _U and the lower the sound output unit VO _L. Specifically, the upper audio output unit VO _U includes speakers SP _U and SP _U and their attached members, and the lower audio output unit VO _L includes speakers SP _L and SP _L and their attached members (speaker box). And a port) to achieve a powerful sound production.

  FIG. 11 is a block diagram showing the production main board 37A shown in FIG. 10 in more detail. As shown in the figure, the production main board 37A has a one-chip microcomputer 51 for controlling the production control operation, a program ROM 52 for storing the control program, and an audio stored in an audio data ROM (phrase data ROM in the embodiment) 53. The audio reproduction LSI 54 that reads and expands compressed data and outputs analog audio signals AOL and AOR together with a control signal PLAY is mainly configured.

  The one-chip microcomputer 51 includes a CPU core 51a, a RAM 51b, an interrupt controller 51c, a synchronous / asynchronous serial port (USART circuit) 51e, a parallel port 51, and the like.

  In the production main board 37A shown in FIG. 11, a control command received from the symbol control board 36 is passed through a Schmitt trigger buffer (for example, SN74LV8151PWR) 55 serving as a buffer circuit 55 to a parallel port (set as an input port) 51h of the one-chip microcomputer 51. Is receiving. The strobe signal STB from the symbol control board 36 is supplied to the interrupt controller 51c via the Schmitt trigger buffer 55, and the interrupt processing program is activated to acquire a control command.

  The CPU core 51a outputs dynamic lighting data from a parallel port (set as an output port) 51h in order to execute a lamp effect operation specified by the acquired control command. The output lighting data is output via transistor arrays (M54562FP and M54585FP in the embodiment) 56a and 56b as drivers, and is supplied to the LED group mounted on the decorative substrate 42 in this embodiment. The production main board 37A outputs a common signal of 8 bits and blinking data of 8 bits with a margin so that it can be used in common regardless of the model, but an appropriate number of them is output to the gaming machine. It is selected and used according to the total number of LEDs arranged.

  The data bus of the one-chip microcomputer 51 is connected to a driver D-type flip-flop (for example, three SN74273) 57 so that the blinking operation of the display lamp based on the control command received from the symbol control board 36 can be realized. Yes. Then, 12 bits of the output of the D-type flip-flop 57 are output as they are, and are used as drive data (Φ1 to Φ4) of the stepping motor as necessary. On the other hand, 11 bits of the output of the D-type flip-flop 17 are output via a driver (for example, six TND017SWs) 58, and are used as blinking data of the light emitting lamp in this embodiment.

  The interrupt controller 51c of the one-chip microcomputer 51 is configured to be able to input 4-bit data through a bus buffer (for example, SN74244) 59, but this is not used in this embodiment. Further, the output data TXD of the USART circuit 51e and the control data RTS (request to send) are supplied to the input terminal of the bus buffer 59, and the design is sent from the output terminal of the bus buffer 59 to the design control board 36. It is output as input data RXD and control data CTS (clear to send) of the control board 36.

  On the other hand, the output data TXD and the control data RST (request to send) from the symbol control board 36 are sent via the bus buffer 59 to the input data RXD and control data CTS (clear to send) of the one-chip microcomputer 11. ) Is supplied to the USRAT circuit 51e. However, in this embodiment, the USART circuit 51e is not particularly utilized.

  Note that the system reset signal SRST supplied from the power supply board 40 shown in FIG. 10 is supplied to the reset circuit 60 shown in FIG. 11 and contributes to the reset operation of the CPU after the power is turned on. The system reset signal SRST is also supplied to the audio reproduction LSI 54 via the reset circuit 60, and the audio reproduction LSI 54 is also reset when the power is turned on.

  The audio reproduction LSI 54 is not particularly limited as long as it compresses compressed audio data. In this embodiment, an automatic performance LSI (Yamaha Corporation YMZ770B) incorporating a sequencer based on an AMM (Amusement Music Compression) data decoder is used. I use it. This LSI includes an internal circuit as shown in FIG. 12, and operates based on a command received from a host CPU (a CPU core 51a of a one-chip microcomputer in this embodiment). The reproduced sound from the automatic performance LSI 54 can be output as a digital signal or an analog signal, but here, analog signals (AOL, AOR) are used.

  The automatic performance LSI 54 shown in the figure is capable of simultaneously reproducing eight independent phrases by means of eight sequencers (phrase data decoding), so that the background sound that excites the gaming operation of the gaming machine can be reproduced as stereo sound. At the same time, it is possible to reproduce a notice sound or the like for notifying the final result of whether or not the big hit is in the middle of the production operation, superimposed on the background sound independently of the left and right speakers.

In this embodiment, four speakers are mounted, but by using one automatic performance LSI 54, two-channel sound (R, L) is output. The sound (R, L) of each channel is a mixture of background sounds made up of music that makes the player live, and sound effects that are used to notify the player of the winning state at the time of reach production. is there. Then, audio R channel upper audio output unit VO _U upper speaker through _SP U, is output from the SP _U, audio L channel lower side of the speaker _SP L through the lower audio output unit VO _L, from SP _L It is configured to output.

  Accordingly, although the same sound is output from the upper and lower left and right speakers, this configuration is effective due to the peculiarity of the gaming machine that operates in noise. That is, even if four speakers are driven individually using two LSIs for voice reproduction, a player who is playing in noise can hardly recognize the difference in sound (stereo feeling). On the other hand, if the same low sound is emitted from the left and right speakers arranged at the lower part of the gaming machine, the equipment configuration is low-cost and the low sound from the speaker stimulates the player's abdomen from the left and right. Recognized.

  By the way, in this embodiment, in order to effectively execute the reach effect and the sound effect during the big hit game, the sound signal of each channel is processed before the sound data (PCM data) is stored in the phrase data ROM 53. Yes. The processing content is not particularly limited, but phase-in and phase-out processing is performed as audio production when an object is launched from the bottom to the top and audio production when the object falls from top to bottom. The

Figure 14 is for outputting voice from the lower audio output unit VO _L is fit for being phased out, and the state in which the output sound from the upper audio output unit VO _U is the phase-in shown in the speech waveform, In the present embodiment, since the sound waveform processed into such a sound waveform is stored in the ROM 53, there is no control complexity such that a digital signal or an analog signal read from the ROM 53 is processed again.

  Although not particularly preferable, two audio reproduction LSIs 54 may be used to output 4-channel audio signals. In this case, by performing phase-in and phase-out processing of the sound of each channel in advance, it is possible to produce a sound effect that matches the movement of the object. That is, the sound can be moved in the same direction as the object on the screen moves vertically, horizontally, and diagonally.

  FIG. 13 illustrates an example of the effect sub-control board 37B. The effect sub-board 37B transmits a driver 61 (three Darlington sync drivers TD62064AF in the embodiment) that receive the output of the D-type flip-flop 57 of the effect main board 37A and a 4-bit signal to the effect main board 37A. The Schmitt trigger circuit 62, digital amplifiers 63a and 63b and their associated circuits, and a serial transmission path 64 connected to the effect main board 37A are configured. However, in this embodiment, the serial transmission path 64 is not used.

  The digital amplifier 63 converts the two-channel analog signals AOR and AOL output from the audio reproduction LSI 54 into a digital signal such as a PWM (Pulse Width Modulation) wave and amplifies the class D. As shown in the figure, two digital amplifier ICs 63a and 63b are provided for the four speakers, and amplify the AOR signal and the AOL signal, respectively.

  As an attached circuit of the digital amplifiers 63a and 63b, in the illustrated example, two input processing units 65a and 65b and a group of integration circuits (low-pass filters) 66 arranged in the signal output unit are provided. The group of integrating circuits 66 converts a digital signal which is a PWM wave into an analog signal, and the same circuit is connected to the two digital amplifiers 63a and 63b. On the other hand, the input processing units 65a and 65b set the respective time constants appropriately so that the input processing unit 65a exhibits the bass cut effect and the input processing unit 65b exhibits the bass boost effect. Note that the variable resistances of the input processing units 65a and 65b change the resistance values discretely by moving the slide pieces, and are set to appropriate resistance values during manufacturing.

  As described above, in this embodiment, after a digital signal (PCM signal) as audio data is converted into an audio signal (analog signal), the digital amplifier 52 converts the digital signal into a digital signal (PWM signal), and then performs class D amplification. ing. Then, the D-class amplified digital output is returned to an analog signal by an integrating circuit. Therefore, there is no wasteful power consumption as in the case of class A amplification, and it is possible to output a loud sound while suppressing power consumption, and it is possible to produce a powerful sound effect together with the speaker box. Further, even in a gaming hall where a large number of gaming machines are arranged, power consumption does not become a problem due to powerful sound effects.

  Although the present embodiment has been specifically described above, the specific description content does not particularly limit the present invention. For example, in the above embodiment, only the phase-in / phase-out speech processing has been described, but other appropriate speech processing can be considered. For example, it is preferable to emphasize the low frequency of the audio signal (AOL) supplied to the lower audio output unit, while emphasizing the high frequency of the audio signal (AOR) supplied to the upper audio output unit.

In the embodiment, as a technique for outputting a low-frequency emphasized sound from the lower sound output unit, (a) processing the sound data into low-frequency emphasized sound data and storing it in the ROM 53, and (b) sound data. per analog converted audio signals from, it has been exemplified that providing the input processing unit 65a having a frequency characteristic of amplifying to emphasize low frequency (bass boost characteristics), as further (c) lower speaker SP _L, low It is preferable to employ a speaker having a frequency characteristic that can output up to a frequency range.

  It is also preferable to be able to adjust the position of the lower speaker or the upper speaker. In this case, since the sound effect can be changed according to the player's preference, interest is increased. Alternatively, it is also effective to configure so as to be automatically adjusted by a sensor, a camera or the like that grasps the position of the player.

It is a front view of the pachinko machine concerning an example. It is a side view of the pachinko machine of FIG. The upper speaker is shown with the glass door open. The upper speaker is shown from the back side of the front frame. The state of attachment of the lower speaker is illustrated. The front box and the rear box for accommodating the lower speaker are illustrated. The state which combined the front box and the rear box, and the center box are shown in figure. It is a front view which shows a game board. It is a rear view of the pachinko machine of FIG. It is a block diagram which shows the whole structure of the pachinko machine of FIG. It is a block diagram showing a configuration of a production main board. 1 illustrates an internal configuration of an example of a sound reproduction LSI. It is a block diagram which shows the structure of an effect sub board | substrate. It is drawing explaining the processing content of an audio | voice signal.

Explanation of symbols

3 outer frame 4 front frame VO _L lower audio output unit VO _U upper audio output unit 16L, 16R speaker box SP _L speaker

Claims (6)

A rectangular frame-like outer frame (3); a front frame (4) pivotably attached to the outer frame; a glass frame pivotally attached to the front frame; It consists of a lower audio output unit fixed at the bottom of the frame,
An upper audio output unit is provided on the upper part of the front frame or the glass frame, and a part or all of a main part of the gaming machine excluding the lower audio output unit is mounted on the front frame,
The lower audio output unit is configured by arranging speakers in a pair of left and right speaker boxes,
The bullet ball game machine according to claim 1, wherein each speaker of the lower sound output unit outputs a sound in which a low frequency is emphasized as compared with the upper sound output unit. The ball game machine according to claim 1, wherein the upper audio output unit and the lower audio output unit are supplied with an audio signal processed by an integration circuit after class D amplification of the digital signal. The pair of speaker boxes each have a built-in center box adjacent to each other, and each center box is provided with an audio outlet on the front side, and opened on the back side to be an audio inlet. Or the bullet ball game machine of 2. A main control unit that mainly controls game operations, a symbol control unit that controls the display unit, and an effect control unit that realizes sound effects and lamp effects,
The ball game machine according to claim 1, wherein the effect control unit is operated based on a control command received from the symbol control unit. A gaming machine comprising: a main control unit that mainly controls gaming operations; and a sub-control unit that receives control commands directly or indirectly from the main control unit to realize individual gaming operations. Is
A first board equipped with a computer circuit for identifying a series of effects based on the control command;
The bullet ball game machine according to any one of claims 1 to 3, wherein the ball game machine is configured to be divided between a first board and a second board that is located between the first board and the audio output unit and realizes a signal transmission / reception operation. The ball game machine according to any one of claims 1 to 5, wherein the same sound is output from each speaker of the lower audio output unit.