JP2006026129A - Game machine and control device for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a game machine capable of controlling a light emitting device synchronous to a music without programming it previously. <P>SOLUTION: This game machine is provided with a reproduction speaker, the light emitting device whose light emission state is controlled, and a control device outputting a control signal controlling the light emitting device in relation to a reproduction sound from the speaker. The control device is so constituted as to extract low frequency components in a predetermined frequency range out of music frequency components constituting the music to be reproduced and generate the control signal from the extracted low-frequency components. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an amusement machine and its control device.

  In various game machines, depending on the scene of a game (game) and the progress of the game, an effect is applied with sound (sound effect) or light corresponding to the scene. Furthermore, not only sound effects but also music has been used in game machines. In other words, there are those that play music in relation to play, flash light intensity, or combine them to flash light intensity according to the music. FIG. 15 shows an example of an apparatus using such music and light. The device of FIG. 15 is a device that controls the sound and light of a game machine including a speaker 5 and a light emitting device (using a plurality of LEDs and the like) 7. This apparatus includes a microcomputer 1, and the microcomputer 1 controls a sound source 2 such as a ROM and an optical interface 6. That is, the sound source 2 stores at least one song (music) as data. The characteristics of this song, for example, the repetition period of the low-pitched beat, is analyzed in advance, and based on the analysis result, the light-emitting device 7 blinks, that is, the light control data for controlling the radiation state is stored in the microcomputer 1. Is stored. The music of the sound source 2 is started by the microcomputer 1 and the light control data is transmitted to the optical interface 6 in synchronization with the music. Thus, if attention is paid to the sound, the sound data is output from the sound source 2 as an analog signal, and the sound is adjusted via a volume control circuit 3 that performs gain control manually or the like, and a power amplification circuit 4 that obtains power for driving the speaker. It is transmitted to the speaker 5. Thereby, music flows from the speaker. At the same time, a light control signal from the optical interface 6 is transmitted to the light emitting device 7, and for example, a plurality of LEDs and the like of the light emitting device 7 blinks or the intensity of light is controlled. Thus, the light operation of the light emitting device 7 is synchronized with the sound emitted from the speaker 5 and, for example, the beat of music.

  According to the above-described apparatus shown in FIG. 15, in various kinds of game machines, although the light blinking intensity can be performed to some extent in relation to music (songs), analysis is performed for each song in advance, It is necessary to be able to operate the light emitting device in synchronization with the beat. However, it is extremely troublesome and time-consuming to perform such an analysis in advance for each song. For example, if you want to blink light and dark according to the beat of music, you have to program the point where all the beat parts of the song are timed and the light blinks and darkens in relation to that time. Then, the program data is started in synchronization with the start of the music. However, it is difficult to control the light according to the true state of music. For example, assuming that a song with a tempo of 100 at a pace of 4 minutes is 4 minutes, 400 time points are measured and programmed into the microcomputer. When this increases to 100 songs or the like, it becomes 40,000 places, the time required for the program becomes enormous, and the amount of data becomes enormous, which is practically difficult to realize. Also, even if you want to use a new song that has not been analyzed, you cannot immediately use it for a game machine as described above. Thus, taking time to prepare is to avoid as much as possible in game machines that are fashionable and must be installed and used quickly.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a game machine that can control a light emitting device in synchronization with music without the need for a program in advance.

  The game machine of the present invention, a playback speaker, a light emitting device whose light emission state is controlled, and a control device that outputs a control signal for controlling the light emitting device in relation to the reproduced sound from the speaker, The control device is configured to extract a low frequency component in a predetermined frequency range from music frequency components constituting music to be reproduced, and generate the control signal from the extracted low frequency component. It is characterized by that.

  Furthermore, the game machine of the present invention includes a reproduction speaker, a light-emitting device whose light emission state is controlled, and a music frequency component constituting the music for reproduction added with an additional low-frequency component. A storage device stored as a component-added music frequency signal; and a control device that outputs a control signal for controlling the light-emitting device, wherein the control device selects the additional low-frequency signal from the low-frequency component-added music frequency signal. A component is extracted, and the control signal is generated from the extracted additional low-frequency component.

  The control device for a game machine of the present invention is a control device for a game machine that outputs a control signal for controlling the light emission state of the light-emitting device in relation to the reproduced sound from the speaker, and reproduces it. A low frequency component in a predetermined frequency range is extracted from music frequency components constituting power music, and the control signal is generated from the extracted low frequency component.

  Furthermore, the control device for a game machine of the present invention is a control device for a game machine that outputs a control signal for controlling the light emission state of the light-emitting device in relation to the playback sound from the speaker. From the low frequency component added music frequency signal from the storage device in which the low frequency component added music frequency signal is added to the music frequency component constituting the music for music, the additional low frequency is stored. A component is extracted, and the control signal is generated from the extracted additional low-frequency component.

According to the present invention, since the low frequency component is extracted from the music frequency components constituting the music to be reproduced and the light emitting device is controlled, it is not programmed in advance in relation to the music (music). However, it is possible to automatically control the light emitting device in relation to the music from the reproduction of the music, and therefore, it is possible to deal with a sound source such as a CD, MD, and cable broadcasting. Furthermore, according to the present invention,
Since an additional low frequency component is added to the music frequency component constituting the music for playback and the light emitting device is controlled based on this additional low frequency component, even when playing music that does not have a low frequency component The light emitting device can be controlled.

  Prior to describing the embodiments of the present invention, the principle of the present invention will be briefly described.

  The inventor paid attention to the beat in the rhythm among the melody that plays the musical scale that composes the music (music) and the rhythm that engraves the beat. In other words, it has been uniquely learned that musical instruments for chopping beats are mostly drums or basses, and the electric signals of the sound from them are 150 Hz or less. The present invention has been made based on this unique knowledge. The upper beat is automatically analyzed and acquired during music playback, and the light emitting device is controlled by the acquired signal. It is a thing.

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

  In FIG. 1, circuit elements equivalent to those in FIG. 15 are denoted by the same reference numerals. In FIG. 1, a sound source 2, a volume control circuit 3, a power amplifier circuit 4, and a speaker 5 are substantially the same as those in FIG. The optical interface 6 and the light emitting device 7 are substantially the same as those in FIG. 15, but a control circuit 15 is connected between these circuits 6 and 7.

  As will be described later, the control circuit 15 uses a signal received by the light emitting device 7 based on programmed data from the optical interface 6, a control signal from the waveform shaping circuit 14, and a switching signal from the microcomputer 1. Based on this, switching or the like is performed. That is, a part of the amplifier circuit 11, the low-pass filter 12, the detection circuit 13, the waveform shaping circuit 14, and the control circuit 15 constitute a control device that generates this control signal.

  Further, the present embodiment includes an amplifier circuit 11 that receives music data from the sound source 2 and amplifies the data while performing level matching. The so-called recording level of a song is not the same for all songs. In order to perform proper control, it is necessary to adjust the level of each song even when the song changes. For this reason, the level of the music signal from the sound source 2 is adjusted by the amplifier circuit 11.

  For example, assume that the sound signal (music frequency component) shown in FIG. This sound signal includes a low frequency component (low frequency component). The sound signal having the waveform shown in FIG. 2 is level-matched by the amplifier circuit 11, that is, gain-controlled so that the peak has a predetermined value, for example, 1V, and the like, and is output as a similar waveform signal. . The signal having this waveform is applied to the low-pass filter 12 at the next stage.

  The low-pass filter 12 is for passing only low-frequency components such as drums and basses, that is, for separating beat signals. The signal that has passed through the low-pass filter 12 is processed as described later, and finally a signal for operating the light-emitting device 7 in accordance with the beat of the drum or bass is obtained. As a result of analyzing various music pieces, the inventor has learned about the pass band of the low-pass filter 12 as follows. That is, the pass band may be set to 70-200 Hz practically. Preferably it is 120-180Hz, 140-200Hz or 70-100Hz may be sufficient. In general, when the pass band is shifted to a higher one, the human voice in the music signal also passes. In this case, the light emitting device 7 is controlled by a signal generated based on a human voice.

  In general, when the pass band is shifted to the lower side, when the light emitting device 7 is operated with a signal generated based on the passed signal, the operation of the light emitting device 7 is slower than the tone of the music. That is, the reaction tends to be slow.

  The output from the low-pass filter 12 is shown, for example, in FIG. FIG. 3B shows the waveform of FIG. 3A output from the low-pass filter 12 with the time axis extended.

  The output from the low-pass filter 12 is applied to the detection circuit 13 at the next stage. The output is detected by the detection circuit 13 and output, for example, as a waveform shown in FIG. 4 and further applied to the waveform shaping circuit 14 at the next stage.

  The waveform shaping circuit 14 detects a rising portion in the waveform of the input detection output and outputs it as a pulse. When the waveform of FIG. 4 is input, the waveform of FIG. 5 is output as a detection output. This detection output is applied to the control circuit 15. It is also possible to output a pulse using the falling portion and use this pulse.

  The control circuit 15 has a signal selection function for switching the output from the waveform shaping circuit 14 and the output from the optical interface 6 to be applied to the light emitting device 7. For example, the microcomputer 1 can determine the mode of input signal selection switching by the control circuit 15. For example, among the plurality of songs prepared in advance in the sound source 2, the microcomputer 1 drives the light emitting device 7 in relation to the control data for controlling the light as in the conventional device shown in FIG. Suppose that a piece of music that has been prepared and stored in advance with control data related to light to be operated is operated. In this case, the control data from the microcomputer 1 is transmitted to the light emitting device 7 through the optical interface 6 and the control circuit 15. On the contrary, it is assumed that the microcomputer 1 operates a song for which control data relating to the light is not prepared. At this time, a signal from the waveform shaping circuit 6 is transmitted to the light emitting device 7 via the control circuit 15.

  In this way, when the signal from the waveform shaping circuit 14 is applied to the light emitting device 7, the light emitting device 7 performs a light emission operation with flashing intensity in relation to a low-frequency component such as a so-called bass or drum in the music.

  Each circuit described above can actually take various forms, and an example thereof will be briefly described below.

  For example, the amplifier circuit 11 may be the circuit shown in FIG. This circuit corrects about 6 dB in several steps according to the level of the input signal INPUT. The levels of the input signal INPUT and the output signal OUTPUT are adjusted by R001, R002-R006, and R009-R010. IC001 1/2, IC002, and IC003 are provided to correct the difference in signal level between the sound sources. Detection is performed with IC001 1/2 and D001. When the signal level is high, the gains are changed by turning on the comparators TR001 and TR004 of IC002 and IC003. In addition, the part enclosed with the wavy line in FIG. 6 can also be replaced with FIG.

  As the low-pass filter 12, the circuit of FIG. 8 or FIG. 9 can be used. As can be seen, FIG. 8 is a circuit using an IC, and FIG. 9 is a circuit using a transistor.

  As the detection circuit 13 and the detection shaping circuit 14, the circuit shown in FIG. 10 or FIG. 11 can be used. In FIG. 10, detection is performed at Q11, and the voltage change of the collector of Q002 is applied to the base of Q003. Q003 is biased by R005 and the output OUTPUT is 0 potential. When a signal comes to Q002, the collector voltage drops and the bias of Q003 is lost via C003, and the output OUTPUT is Hi. FIG. 11 shows an example in which the transistor of FIG. 10 is replaced with an IC, which is detected by IC001 and D001, the base bias of Q001 is turned off at C003, Q002 is biased, and the output OUTPUT is set to Hi.

  The case where the music stored in the sound source 2 has a so-called bass component has been described above. However, when the music to be reproduced does not have the bass component, the waveform shaping circuit 14 drives the light-emitting device 7. An appropriate signal is not output. In such a case, a signal (music frequency component with a low frequency component) obtained by adding a low frequency component (additional low frequency component) to a song (music frequency component) can be prepared in advance by data processing. Such an example will be described below with reference to FIG. In FIG. 12, circuits equivalent to those in FIG.

  In FIG. 12, a bass component is generated and stored as data in the sound source 2 in relation to a certain song. As this low-frequency component, as shown in FIG. 13, two component signals with reversed phases that are canceled by synthesis are used. Here, these two component signals are referred to as an Lch signal and an Rch signal. The signal from the sound source 2 is the original music signal, the Lch signal, and the Rch signal, and is added to the bass signal cancel circuit 3A via the volume control circuit 3.

  In the bass signal cancel circuit 3A, the two signals shown in FIGS. 13A and 13B are canceled by superposition.

  On the other hand, the music signal, the Lch signal, and the Rch signal from the sound source 2 are transmitted through the amplifier circuit 11 and the low-pass filter 12. R difference signal detection circuit 13A and L.R. The signal is input in parallel to the R sum signal detection circuit 13B.

  The bass signal component added in advance is output from the difference signal detection circuit 13A. Therefore, by using the output from the circuit 13A, the light-emitting device 7 can be operated even in the case of a song having no bass component. L. From the R sum signal detection circuit 13B, a signal based on the original signal of the music in which the bass component added in advance is canceled is output. That is, the circuit 13B outputs the same as the circuit 13 in FIG.

  L. above. As the R difference and sum signal detection circuits 13A and 13B, for example, the circuit shown in FIG. 14 can be employed. In this circuit, the previously added L.P. The R-phase signal is amplified by the differential operation amplifier of IC001 1/2, and is detected and waveform-shaped in the same manner as described with reference to FIG. In FIG. 14, the same reference numerals as those in FIGS. 10 and 11 are given to equivalent circuit members. As can be seen from FIG. 14, since the sum signal of the Lch and Rch signals is generated by the IC001 2/2, signal processing similar to that in FIG. 1 is performed at the subsequent stage.

1 is an overall circuit diagram of an embodiment of the present invention. Signal waveform at node a in FIG. Signal waveform at node b in FIG. Signal waveform at node c in FIG. Signal waveform at node d in FIG. FIG. 2 is a circuit diagram illustrating an example of an amplifier circuit 2 in FIG. 1. FIG. 7 is a circuit diagram showing a modification of part of the circuit of FIG. 6. The circuit diagram which shows an example of the low-pass filter of FIG. The circuit diagram which shows the other example of the low-pass filter of FIG. The circuit diagram which shows an example of the detection circuit of FIG. 1, and a waveform shaping circuit. The circuit diagram which shows the other example of the detection circuit of FIG. 1, and a waveform shaping circuit. The whole circuit diagram of other embodiments of the present invention. FIG. 13 is a waveform diagram of a bass component signal added to the sound source 2 of FIG. 12. L. of FIG. R difference and sum signal detection circuit. The whole circuit diagram of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Microcomputer 2 Sound source 3 Volume adjustment circuit 3A Bass signal cancellation circuit 4 Power amplifier circuit 5 Speaker 6 Optical interface 7 Light emitting device 11 Amplifier circuit 12 Low pass filter 13 Detection circuit 13A L, R difference signal detection circuit 13B L, R sum signal detection circuit 14 Waveform shaping circuit 15 Control circuit

Claims (11)

A speaker for playback,
A light emitting device in which a light emission state is controlled; and
A control device that outputs a control signal for controlling the light emitting device in relation to the reproduced sound from the speaker;
With
The control device is configured to extract a low frequency component in a predetermined frequency range from music frequency components constituting music to be reproduced, and generate the control signal from the extracted low frequency component.
An amusement machine characterized by that.   The control device includes a band-pass filter that extracts the low-frequency component from the music frequency component, and a signal processing circuit that performs detection and waveform shaping of the low-frequency component. The game machine according to claim 1.   The game machine according to claim 2, wherein the signal processing circuit is configured to generate a signal corresponding to a rising or falling period of the detected signal. A speaker for playback,
A light emitting device in which a light emission state is controlled; and
A storage device that stores, as a low frequency component-added music frequency signal, an additional low frequency component added to the music frequency component constituting the music for playback;
A control device for outputting a control signal for controlling the light emitting device;
With
The control device is configured to extract the additional low frequency component from the low frequency component additional music frequency signal and generate the control signal from the extracted additional low frequency component.
An amusement machine characterized by that.   The additional low-frequency component is a pair of low-frequency components with inverted phases, and includes a signal processing circuit that detects and shapes the pair of low-frequency components. No game machines.   6. The game machine according to claim 5, further comprising a cancel circuit provided between the storage device and the speaker for canceling the pair of low frequency components.   Data storage means for storing pre-programmed data for controlling the light emitting device in relation to music to be played back, and the data from the data storage means and the control signal from the control device The play equipment according to claim 1, wherein the play equipment can be switched and applied to the light emitting device. A control device for a game machine that outputs a control signal for controlling a light emission state of a light emitting device in relation to a reproduced sound from a speaker,
It is configured to extract a low frequency component in a predetermined frequency range from music frequency components constituting music to be reproduced, and generate the control signal from the extracted low frequency component.
A control device for an amusement machine characterized by the above.   9. The apparatus according to claim 8, further comprising: a band pass filter that extracts the low frequency component from the music frequency component; and a signal processing circuit that performs detection and waveform shaping of the low frequency component. The control device for game machines described in 1. A control device for a game machine that outputs a control signal for controlling a light emission state of a light emitting device in relation to a reproduced sound from a speaker,
The additional low frequency component added from the low frequency component added music frequency signal from the storage device in which the additional low frequency component added to the music frequency component constituting the music for reproduction is stored as the low frequency component added music frequency signal. It is configured to extract a frequency component and generate the control signal from the extracted additional low frequency component.
A control device for an amusement machine characterized by the above.   11. The additional low-frequency component is a pair of low-frequency components whose phases are inverted, and includes a signal processing circuit that performs detection and waveform shaping of the pair of low-frequency components. Control device for game machines.

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