JP2008147860A - Audio reproducing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an audio reproduction system for synchronizing audio reproduction with LED light emitting among a plurality of terminals connected without wire. <P>SOLUTION: A scenario program 20C1, 20C2, 20C3 is wireless-transmitted from a host terminal device 10H selected arbitrarily from a plurality of terminal devices 10 to a client terminal 10C1, 10C2, 10C3 not selected as the host terminal device 10H, so that audio reproduction can be synchronized with LED light emitting at each terminal device 10 between a plurality of terminal devices 10. Further, in accordance with places of a plurality of terminal devices or fluctuations of the number of them, a role each terminal device plays in the audio reproduction and the LED light emitting can be mutually changed among terminal devices on a real time basis. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an audio reproduction system using a plurality of terminals.

  There is an audio reproduction system in which audio signals are transmitted from a wireless transmitter to a plurality of speakers, and each speaker reproduces different audio. This sound reproduction system can provide a three-dimensional acoustic space.

  Non-Patent Document 1 below discloses a small-scale audio reproduction system in which a wireless transmitter, a full range, and a woofer speaker are wirelessly connected. Since this audio reproduction system is small, it is possible to easily change the arrangement of the speakers when the room is redesigned.

  Further, as a system different from the audio reproduction system, there is a system in which the fun of cooperation of a plurality of terminals doubles as the terminals are added.

  In the following Non-Patent Document 2, each terminal has a liquid crystal screen that displays a person's life, and by connecting each terminal electrically, a person who travels between the liquid crystal screens of each terminal deepens the exchange. It is disclosed.

“Rio LIVE air”, [online], Rio Japan, [searched on November 17, 2006], Internet <URL: http://www.rioaudio.jp/product/accessories/LIVEair/> Joe Takemura, “Cube World to Experience Human Communication with a 47mm Cube”, [online], January 30, 2006, IT Media Corporation, [November 17, 2006] Search], Internet <URL: http://plusd.itmedia.co.jp/lifestyle/articles/0601/30/news006.html>

  In the said nonpatent literature 1, it is possible to change the arrangement | positioning of each speaker easily. However, it is impossible to change each sound area reproduced by each speaker between the speakers. Therefore, in order to change the location where each audio area is reproduced, it is necessary to change the arrangement of the speakers.

  In addition, the sound reproduction system disclosed in Non-Patent Document 1 can be said to be a system that doubles the fun of cooperation of multiple terminals as more terminals are added, as disclosed in Non-Patent Document 2. Absent. This is because it is possible to add a speaker, but it is impossible to change the audio area that the speaker plays.

  Furthermore, the audio reproduction system disclosed in Non-Patent Document 1 has something that appeals to hearing but does not appeal to vision. Therefore, it cannot be said that it is a system that provides a healing space full of realism by appealing to the audiovisual simultaneously.

  In view of the above problems, an object of the present invention is to provide an audio reproduction system that changes the roles of each terminal among wirelessly connected terminals and provides a healing space.

In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that means for synchronizing the reproduced sound reproduced in each of a plurality of wirelessly connected terminals and the reproduced sound rule information defining the reproduced sound reproduced in each terminal A rule information setting means for setting to each terminal, and the playback voice rule information is information specifying the playback voice played back by each terminal according to the position of each terminal,
It is characterized by including.

  The invention according to claim 2 sets, in each terminal, means for synchronizing the reproduced sound reproduced in each of the plurality of wirelessly connected terminals and the reproduced sound rule information defining the reproduced sound reproduced in each terminal. Rule information setting means, wherein the playback voice rule information includes information defining the playback voice played back by each terminal according to the number of the plurality of terminals.

  According to a third aspect of the present invention, in the audio reproduction system according to the first or second aspect, the reproduction audio rule information includes information designating sound source information of the reproduction audio.

  According to a fourth aspect of the present invention, in the audio reproduction system according to any one of the first to third aspects, the reproduction audio rule information includes information for designating a sounding timing of the reproduction audio. To do.

  According to a fifth aspect of the present invention, in the audio reproduction system according to any one of the first to fourth aspects, the reproduction audio rule information includes information for designating a change in volume over time with respect to the reproduction audio. It is characterized by that.

  According to a sixth aspect of the present invention, in the audio reproduction system according to any one of the first to fifth aspects, the reproduction audio rule information is information specifying a high-frequency component amount change with time for the reproduction audio, It is characterized by including.

  A seventh aspect of the present invention is the sound reproduction system according to any one of the first to sixth aspects, wherein the reproduction sound rule information includes information for designating a parameter relating to a stereophonic effect by the reproduction sound. It is characterized by.

  According to an eighth aspect of the present invention, there is provided the audio reproduction system according to any one of the first to seventh aspects, further comprising: a terminal selection unit that selects a host terminal from the plurality of terminals; and each terminal other than the host terminal. Terminal setting means for setting the client terminal, and ID setting means for setting a client ID for each client terminal, and the playback voice rule information is based on each client ID for the playback voice played back by each terminal. It includes the specified information.

  According to a ninth aspect of the present invention, in the audio reproduction system according to the eighth aspect, the ID setting means is configured to determine each client ID based on a reception strength signal value at each client terminal by wireless transmission from the host terminal. Means for setting.

  According to a tenth aspect of the present invention, in the audio reproduction system according to the eighth or ninth aspect, the rule information setting means wirelessly transmits the reproduction audio rule information held by the host terminal to each client terminal. And means for setting the reproduction voice rule information in each terminal.

  The invention according to claim 11 is the sound reproduction system according to any one of claims 1 to 10, further comprising means for controlling operation of the light emitting device in cooperation with the reproduced sound. To do.

  According to the first aspect of the present invention, each terminal plays the role of each terminal according to the variation of the position of each terminal based on the reproduction voice rule information that defines the reproduction voice set in a plurality of terminals. It is possible to change.

  According to the second aspect of the present invention, each terminal plays a role between the terminals in accordance with the variation of the number of the plurality of terminals based on the reproduction voice rule information that defines the reproduction voice set in the plurality of terminals. It is possible to change.

  According to the third aspect of the present invention, which sound source data is to be reproduced by a plurality of terminals is defined based on the reproduction voice rule information.

  According to the fourth aspect of the invention, based on the reproduction voice rule information, it is defined at what tone generation timing a plurality of terminals reproduce.

  According to the fifth aspect of the present invention, the reproduction sound rule information sets not only the reproduction sound but also the reproduction sound volume, so that it is possible to provide a stereoscopic sound space full of realism.

  According to the sixth aspect of the present invention, the reproduction sound rule information sets not only the reproduction sound but also the high-frequency component amount, so that it is possible to provide a stereoscopic sound space full of presence.

  According to the seventh aspect of the present invention, it is possible to realize a stereophonic effect such as an echo effect or a harmony effect by specifying the parameter relating to the stereophonic effect in the reproduction voice rule information.

  According to the eighth aspect of the present invention, a role played by each terminal can be given to a plurality of terminals by naming them as a host terminal or a client terminal in which a client ID is set.

  According to the ninth aspect of the present invention, by setting the client ID based on the reception strength signal value at the client terminal by wireless transmission from the host terminal, each terminal can be set according to the change in the position or number of the plurality of terminals. It becomes easy to change the roles to be played between the terminals in real time.

  According to the tenth aspect of the present invention, it is not necessary for all the plurality of terminals to store the reproduction voice rule information in order for the reproduction voice rule information to be set in the plurality of terminals, and the host terminal stores the reproduction voice rule information in the client terminal. It is possible to suffice only by wireless transmission.

  According to the eleventh aspect of the present invention, it is possible to provide a healing space full of a sense of reality by linking reproduced sound and LED light emission.

<Outline of audio playback system>
Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, an outline of an audio reproduction system according to the present invention will be described. FIG. 1 is a layout diagram of a plurality of wirelessly connected terminals according to the present embodiment.

  The host terminal 10H is normally a single terminal that is arbitrarily selected from a plurality of terminals. The client terminals 10C1, 10C2, and 10C3 are single or multiple terminals that are not arbitrarily selected from the multiple terminals by the host terminal 10H. The host terminal 10H and the client terminals 10C1, 10C2, and 10C3 are common in that sound reproduction and LED light emission are performed. However, it is different in that only the host terminal 10H controls the audio reproduction system.

  Scenario programs 20C1, 20C2, and 20C3 in which reproduction audio rule information 60 for setting audio reproduction timing and LED light emission rule information 70 for setting LED light emission timing are described from the host terminal 10H to the client terminals 10C1, 10C2, and 10C3. Wirelessly transmitted. The plurality of terminals can synchronize the sound reproduction and LED light emission at each terminal based on the reproduction sound rule information 60 and the LED light emission rule information 70.

  The host terminal 10H and the client terminals 10C1, 10C2, and 10C3 respectively reproduce the squealing voice, the tone of Japanese koto, the sound of shioshido, and the tone of the frog.

  Further, the host terminal 10H and the client terminals 10C1, 10C2, and 10C3 have LED light emitting units 30H, 30C1, 30C2, and 30C3, respectively, and are synchronized with the light emission timing at each terminal in cooperation with the above-described audio reproduction. LED light is emitted.

  As described above, a plurality of terminals synchronize sound reproduction and LED light emission at each terminal, so that the sound reproduction system according to the present invention can provide a stereoscopic sound space and a healing space full of realism. Yes.

<Components of individual terminals in the audio playback system>
Next, components of the individual terminal in the audio reproduction system shown in FIG. 1 will be described. FIG. 2 is a block diagram of the terminal according to the present embodiment. The terminal 10 includes a host terminal selection switch 40, a wireless communication unit 50, an audio processing unit 80, an audio output unit 81, an LED light emitting unit 30, a control unit 100, a first storage unit 110, and a second storage unit 120.

  The host terminal selection switch 40 is a switch in which a terminal that is turned on is selected as the host terminal 10H, and a terminal that is turned off is selected as the client terminals 10C1, 10C2, and 10C3. This switch is different from the switch for turning on / off the power supply itself of the terminal 10.

  The operation of the wireless communication unit 50 is controlled by the wireless protocol code 121 and the application code 122 stored in the second storage unit 120.

  The audio processing unit 80 and the audio output unit 81 can perform audio reproduction based on the audio data 90 and the reproduction audio rule information 60 described in the scenario program 20. Further, the LED light emitting unit 30 can emit LEDs based on the LED light emission rule information 70 described in the scenario program 20. The operation of the sound processing unit 80 and the LED light emitting unit 30 is controlled by the control unit 100. The voice data 90 and the scenario program 20 are stored in the first storage unit 110.

  In the present embodiment, a firmware flash memory, an audio LSI, a microcomputer, or a CPU is used for the second storage unit 120, the audio processing unit 80, and the control unit 100, respectively.

  By including the above-described components in one chip, it is possible to reduce power consumption and manufacturing cost. For example, in the present embodiment, the scenario program 20 and the audio data 90 are stored in the first storage unit 110, but may be stored in an embedded memory for firmware built in the microcomputer.

<Contents of scenario program>
The contents of the scenario program 20 that appears in the description of FIGS. 1 and 2 will be described. FIG. 3 is a diagram showing the contents of the scenario program 20 according to the present embodiment. The scenario program 20 includes, for each track T1, T2, T3, T4, reproduction sound rule information 60T1, 60T2, 60T3, 60T4, LED light emission rule information 70T1, 70T2, 70T3, 70T4, terminal names for sound reproduction and LED light emission. Is described.

  The reproduction voice rule information 60 sets the voice reproduction timing at each terminal. In FIG. 3, the reproduction voice rule information 60 is represented by a time-series straight line indicating that time has passed as it progresses on the straight line from the left side to the right side. A square represents sound reproduction, and a straight line other than the square represents sound reproduction stop. The length of the square in the straight line direction represents the length of the voice. For example, since a single tone of Japanese koto is not a continuous tone, the length of the quadrangular linear direction in the reproduction sound rule information 60T2 is short. On the other hand, since a single note is a continuous sound, the length of the quadrangular linear direction is long in the reproduction sound rule information 60T4. Further, the reproduction sound rule information 60 can represent a change in reproduction volume.

  The reproduced sound rule information 60 can also represent the amount of high frequency components of the reproduced sound. For example, by making settings in the playback voice rule information 60 to strongly slam the Japanese koto or to play the kite strongly, it is possible to increase the harmonic components of the playback sound of the Japanese koto and koto.

  The reproduction sound rule information 60 can further realize a three-dimensional sound effect. The stereophonic effect refers to an effect of producing a spatial depth by sound reproduction in cooperation with a plurality of terminals. Examples thereof include an echo effect and a harmonic effect. Here, the echo effect refers to, for example, superimposing reproduced sound at a certain terminal that looks like a direct sound and reproduced sound at another terminal that looks like a reflected sound. Further, the harmonization effect refers to superimposing reproduced audio from a plurality of terminals with slightly shifted pitches.

  In order to realize the echo effect, in the reproduction sound rule information 60, the difference between the sound reproduction timing of the direct sound and the reflected sound, the number of reflections, the attenuation rate of the reproduction sound and the high frequency component at the time of reflection, etc. are set as parameters. And so on.

  In order to realize the harmonization effect, it is conceivable to set, as a parameter, how much the audio pitch expressed by the audio data 90 (to be described later) is shifted between a plurality of terminals in the reproduction audio rule information 60. . As a result, it is possible to reproduce a state in which a plurality of musical instruments are performed.

  The LED emission rule information 70 sets the LED emission timing at each terminal. In FIG. 3, the LED light emission rule information 70 is also expressed by a time series straight line. The lamp symbol indicates that the LED is emitting light, and the straight line other than the lamp symbol indicates that the LED emission is stopped. Further, the LED light emission rule information 70 can represent a change in LED light emission amount. Furthermore, the reproduction sound rule information 60 and the LED light emission rule information 70 can be linked.

  The reproduction voice rule information 60 is merely text data for setting the voice reproduction timing at each terminal, and does not set the voice reproduction waveform. Therefore, audio data 90 for setting the audio reproduction waveform is required.

<Contents of audio data>
The contents of the audio data 90 appearing in the description of FIGS. 2 and 3 will be described. FIG. 4 is a diagram showing the contents of the audio data 90 according to the present embodiment. In this embodiment, the audio data 90 is composed of PCM (Pulsed-Code Modulation) data and MIDI sound source data.

  PCM data is used as the voice data 90 because it is difficult to express the squeak and the squeaky sound with a score. PCM data is generated by converting analog audio signals such as Hoho Kyo, Choro Choro,. Reproduction voice rule information 60T1 and 60T3 described in tracks T1 and T3 shown in FIG. 3 set the reproduction timing of these PCM data.

  On the other hand, the performance of the Japanese koto and the performance of the samurai are easy to express with a musical score, so MIDI sound source data is used as the audio data 90. For each, the MIDI sound source data corresponds to each scale of Japanese koto and each scale of koto. It is the MIDI data that sets the reproduction timing of these MIDI sound source data, and the reproduction audio rule information 60T2 and 60T4 described in the tracks T2 and T4 shown in FIG.

<Wireless communication means>
As described above in the description of FIG. 1, the reproduction audio rule information 60 for setting the audio reproduction timing and the LED emission rule information 70 for setting the LED emission timing are described from the host terminal 10H to the client terminals 10C1, 10C2, and 10C3. The scenario programs 20C1, 20C2, and 20C3 are wirelessly transmitted.

  Here, the wireless communication unit 50 uses ZigBee (registered trademark) in the present embodiment. As other wireless communication means, a wireless LAN, Bluetooth (registered trademark), a 300 MHz charged wave, or the like can be used. However, as a portable terminal driven by a dry battery, an audio reproduction system using ZigBee is implemented in order to reduce power consumption.

  Here, since the transmission speed in ZigBee (up to 250 Kbps) is slower than the transmission speed in wireless LAN and Bluetooth (up to 54 Mbps and -1 Mbps, respectively), the relationship between the transmission speed and the data capacity may be a problem. .

  However, the scenario programs 20C1, 20C2, and 20C3 wirelessly transmitted from the host terminal 10H to the client terminals 10C1, 10C2, and 10C3 are based on the reproduction sound rule information 60 and the LED light emission rule information 70 that set the sound reproduction timing and the LED light emission timing. The rule information is only text data.

  Further, since the audio data 90 sets an audio reproduction waveform, the data volume is overwhelmingly larger than that of the scenario program 20. Therefore, the audio data 90 is not wirelessly transmitted from the host terminal 10H to the client terminals 10C1, 10C2, and 10C3, and should be stored in the first storage unit 110 of each terminal. From the above, in this embodiment, the relationship between the transmission rate and the data capacity does not matter.

<Flow of audio playback system processing>
[Multi-terminal placement and host terminal selection]
First, purchase multiple terminals. By purchasing a new terminal after that, the fun of performing sound reproduction and LED light emission in cooperation with a plurality of terminals is doubled.

  In FIG. 1, four terminals are arranged in a room 1. The room 1 has a quadrangular shape with a side length of about 10 m. Even in a room having a more complicated shape than this quadrangle, the sound reproduction system according to the present invention can be implemented. As shown in FIG. 1, it is possible to arrange each terminal at random, or to arrange each terminal in a straight line or the like as described in <a special example in this embodiment> (described later).

  A single host terminal 10H is arbitrarily selected from the plurality of four terminals. This selection is performed by turning on the host terminal switch 40 of the host terminal 10H. The terminals that are not selected as the host terminal 10H are automatically selected as the client terminals 10C1, 10C2, and 10C3.

  Here, it is necessary to distinguish each client terminal from each other. This is because each client terminal needs to determine which sound reproduction and LED light emission should be performed based on which reproduction sound rule information 60 and LED light emission rule information 70 in the scenario program 20 shown in FIG. is there. In this embodiment, each client terminal is distinguished from each other by setting a client ID for each client terminal.

[Client ID setting means]
Next, means for setting a client ID for each client terminal will be described. FIG. 5 is a diagram showing a means for setting the client ID according to the present embodiment. The number of terminals and the terminal arrangement are different from the multiple terminal arrangement shown in FIG. However, the multiple terminal arrangement shown in FIG. 1 also uses means for setting a client ID as described below.

  In FIG. 5, since the host terminal selection switch 40 of the terminal 11H is turned on, the terminal 11H is selected as the host terminal. The terminals 11C1, 11C2, 11C3, 11C4, 11C5, and 11C6 for which the host terminal selection switch 40 is turned off are selected as client terminals.

  In the present embodiment, each client ID is set based on the received intensity signal value at each client terminal. Specifically, the smaller client IDs are set in descending order of the received strength signal value. If there is no obstacle such as a partition in the room 1, normally, the received intensity signal value at each client terminal decreases as the distance from the host terminal 11H to each client terminal increases. The concentric broken line in FIG. 5 is a measure for measuring the distance from the host terminal 11H to each client terminal.

  FIG. 6 is a diagram showing reception strength signal values at each client terminal in the means for setting the client ID. The length of one side of room 1 is only about 10m. However, in the present embodiment, ZigBee (registered trademark) having a low wireless strength is used as the wireless communication means. Therefore, even in the room 1, as the distance from the host terminal 11H to each client terminal becomes longer, the received intensity signal value at each client terminal rapidly attenuates. Therefore, it is possible to set the client IDs 4, 5, and 6 with high accuracy even for the client terminals 11C4, 11C5, and 11C6 that are not greatly different in distance from the host terminal 11H.

[Scenario program and voice data storage means]
By going through the process as described above, in FIG. 1, the host terminal 10H is ready to wirelessly transmit the scenario programs 20C1, 20C2, and 20C3 to the client terminals 10C1, 10C2, and 10C3. Before describing the wireless transmission, means for storing the scenario program 20 and the audio data 90 in the first storage unit 110 will be described.

  The first storage unit 110 may be either an internal memory or an external memory. In the case of an external memory, the downloaded scenario program 20 and audio data 90 are stored in an external memory card, so that customization by the user becomes easier.

  Further, as described in <Wireless communication means>, the scenario program 20 is wirelessly transmitted, but the audio data 90 is not wirelessly transmitted. Therefore, the audio data 90 must be stored in the first storage unit 110 of all the plurality of terminals. However, if only the specific terminal is selected as the host terminal from the plurality of terminals, the scenario program 20 need only be stored in the first storage unit 110 of the host terminal.

[Scenario program wireless transmission]
Next, scenario programs 20C1, 20C2, and 20C3 are wirelessly transmitted from the host terminal 10H to the client terminals 10C1, 10C2, and 10C3. At this time, all the contents of the scenario program 20 shown in FIG. 3 may be wirelessly transmitted to each client terminal. However, for example, only the reproduction audio rule information 60T2 and the LED light emission rule information 70T2 can be wirelessly transmitted to the client terminal 10C1.

  Here, from the leftmost end of each time-series line shown in FIG. 3, all audio reproduction and LED emission must start at the same time. In particular, the music is not completed unless the performance of the koto and the performance of the koto are engaged. Therefore, it is necessary for a plurality of terminals to synchronize sound reproduction and LED light emission at each terminal, and the means will be described below.

  The host terminal 10H transmits a synchronization offset confirmation signal to the client terminals 10C1, 10C2, and 10C3. Each client terminal returns a response signal to the synchronization offset confirmation signal to the host terminal 10H. The host terminal 10H sets the synchronization offset information of each client terminal from the delay time of the response signal with respect to the synchronization offset confirmation signal, and transmits each synchronization offset information to each client terminal.

  Next, the host terminal 10H starts transmission of a synchronization signal to each client terminal. This synchronization signal is continuously transmitted to each client terminal while the audio reproduction system according to the present invention is operating. The control unit 100 of each client terminal adjusts the synchronization signal based on each synchronization offset information. In this way, synchronization is achieved among a plurality of terminals.

  Note that the above-described offset adjustment process is not required when accurate absolute time information can be held, such as when a plurality of terminals have built-in radio clocks. The plurality of terminals may perform sound reproduction and LED light emission based on the absolute time held.

[Audio playback and LED emission]
Based on the reproduction sound rule information 60 and the LED light emission rule information 70 described in the scenario program 20 transmitted by wireless transmission, it is possible to synchronize sound reproduction and LED light emission at a plurality of terminals.

  For example, the host terminal 10H reproduces the cry of the lure based on the reproduction voice rule information 60T1. In the square in the reproduction voice rule information 60T1, the PCM data having the data content of Hohokekyo is reproduced. Further, based on the LED light emission rule information 70T1, LED light emission is performed at the start and end of the squealing of the lure.

  Further, in the client terminal 10C3, the timbre tone is reproduced based on the reproduction voice rule information 60T4. In the square in the reproduction sound rule information 60T4, the MIDI sound source data having the data content of each scale of the frog is reproduced. Also, based on the LED light emission rule information 70T4, LED light emission is performed at the beginning of the sound of the sword.

  As described above, a plurality of terminals synchronize sound reproduction and LED light emission at each terminal, so that the sound reproduction system according to the present invention can provide a stereoscopic sound space and a healing space full of realism. Yes. Further, it is possible to produce a more realistic sensation by a stereophonic effect such as an echo effect or a harmony effect.

[Role changing means between multiple terminals]
Here, the audio reproduction system according to the present invention can mutually change the role of each terminal among a plurality of terminals. For example, if a user relaxing in the vicinity of the host terminal 10H wants to make a squeaky sound stand out from the squeak, a role of the host terminal 10H and the client terminal 10C2 can be mutually changed. As a result, the fun of performing voice reproduction and LED light emission in cooperation with a plurality of terminals is further doubled.

  As means for mutually changing the roles of each terminal among a plurality of terminals, (1) exchanging the roles of the host terminal and the client terminal, (2) changing the position of the plurality of terminals, (3) Propose to change the number. These means will be described below.

  First, the exchange of the roles of the host terminal and the client terminal will be described. In FIG. 5 showing the initial state before role exchange, the host terminal selection switch 40 of the host terminal 11H is turned off, and the host terminal selection switch 40 of the terminal 11C6 arbitrarily selected from each client terminal is turned on. In this case, a new client ID is set based on the reception intensity signal values at the new client terminals 11H, 11C1, 11C2, 11C3, 11C4, and 11C5.

  With the setting of a new client ID, the scenario program 20 as shown in FIG. 3 is not changed. However, the roles of a plurality of terminals can be changed based on the names of terminals that should perform voice reproduction and LED light emission described in the scenario program 20.

  Next, changing the positions of a plurality of terminals will be described. FIG. 7 is a diagram showing a means for changing the client ID in real time in accordance with a change in the position of a plurality of terminals. 5 and FIG. 7 is that the distance from the host terminal 11H to the client terminal 11C3 in FIG. 7 is longer than the distance in FIG.

  Therefore, for example, for the client terminal 11C3, 3 is set as the client ID in the layout shown in FIG. 5, but 6 is set as the client ID in the layout shown in FIG. Based on the scenario program 20 as shown in FIG. 3, the roles of a plurality of terminals can be changed in real time regardless of before or during the performance.

  Finally, changing the number of multiple terminals will be described. FIG. 8 is a diagram showing a means for changing the client ID in real time according to the increase / decrease in the number of terminals. The difference between the layout diagrams of the plurality of terminals shown in FIGS. 5 and 8 is that a terminal 11C7 is newly added in FIG.

  Therefore, for example, 1 is set as the client ID for the terminal 11C7. Based on the scenario program 20 as shown in FIG. 3, the roles of a plurality of terminals can be changed in real time regardless of before or during the performance. Even after purchasing a plurality of terminals, purchasing a new terminal further doubles the fun of performing voice reproduction and LED light emission in cooperation with the plurality of terminals.

<Special Example in this Embodiment>
As a final description of the present embodiment, a special example in which the effect of the present invention is noticeable will be described. In the layout diagrams of the plurality of terminals shown in FIGS. 1, 5, 7, and 8, the plurality of terminals are randomly arranged in the room 1. However, there may be a case where a plurality of terminals are arranged in a straight line or a circle. Even in this case, the means for setting or changing the client ID for each client terminal is the same as the means in the description of FIGS.

  For example, consider a case where a plurality of terminals are arranged in a straight line. The user is relaxing at one end of the straight line, and selects the terminal at that end of the straight line as the host terminal. Then, the client terminal at another end of the straight line emits the phrase performance and LED light emission. When the performance and the light emission are completed, the client terminal adjacent to the client terminal at the other end of the straight line and closer to the user emits the same phrase performance and LED light emission. By repeating the above-described relay performance and light emission, it is possible to enjoy a sense of reality in which performance and light emission gradually approach the user.

  As a reverse pattern, when a terminal at another end of a straight line is selected as the host terminal, it is possible to enjoy a sense of realism where performance and light emission gradually move away from the user.

  In the layout diagrams of the plurality of terminals shown in FIGS. 1, 5, 7, and 8, the plurality of terminals are arranged on the floor in the room 1. However, there may be a case where a plurality of terminals are arranged three-dimensionally. With such an arrangement, for example, it is possible to realize the joy of hearing a divine performance from above the user.

<Modified example of wirelessly transmitting MP3 data>
As a modified example that is partially different from the present example, a modified example in which MP3 data is wirelessly transmitted will be described. The MP3 data is data obtained by compressing voice waveform data such as PCM data to about 1/10.

  In the present embodiment, ZigBee (registered trademark) is used as the wireless transmission means. However, even if the transmission speed (up to 250 Kbps) in ZigBee is taken into account, the MP3 data capacity is small, so that there is no problem with the relationship between the transmission speed and the data capacity. However, if this problem can be solved, the PCM data may be transmitted wirelessly.

  In the present modification, the MP3 data corresponds to the audio data 90 shown in FIG. Also, the playback timing information 60 in the scenario program 20 shown in FIG. 3 sets the playback timing of the MP3 data. The difference between this embodiment and this modification is that audio data 90 is not transmitted wirelessly, but MP3 data is transmitted wirelessly.

It is an arrangement view of a plurality of wirelessly connected terminals according to the present embodiment. It is a block diagram of the terminal which concerns on this Embodiment. It is a figure which shows the content of the scenario program which concerns on this Embodiment. It is a figure which shows the content of the audio | voice data which concern on this Embodiment. It is a figure which shows the means to set the client ID which concerns on this Embodiment. It is a figure which shows the receiving strength signal value in each client terminal in the means to set client ID. It is a figure which shows the means to change client ID in real time according to the fluctuation | variation of the position of several terminals. It is a figure which shows the means to change client ID in real time according to increase / decrease in the number of several terminals.

Explanation of symbols

1 room 10 terminal 10H host terminal 10C1, 10C2, 10C3 client terminal 11H host terminal 11C1, 11C2, 11C3, 11C4, 11C5, 11C6, 11C7 client terminal 20C1, 20C2, 20C3 scenario program 30H, 30C1, 30C2, 30C3 LED light emitting unit 60T1 , 60T2, 60T3, 60T4 reproduction sound rule information 70T1, 70T2, 70T3, 70T4 LED light emission rule information

Claims (11)

Means for synchronizing reproduced audio reproduced in each of a plurality of wirelessly connected terminals;
Rule information setting means for setting, in each terminal, playback voice rule information defining the playback voice played back in each terminal;
With
The reproduction voice rule information is
Information defining the playback audio played back on each terminal according to the position of each terminal,
An audio reproduction system comprising: Means for synchronizing reproduced audio reproduced in each of a plurality of wirelessly connected terminals;
Rule information setting means for setting, in each terminal, playback voice rule information defining the playback voice played back in each terminal;
With
The reproduction voice rule information is
Information defining the playback sound played back by each terminal according to the number of the plurality of terminals,
An audio reproduction system comprising: The sound reproduction system according to claim 1 or 2,
The reproduction voice rule information is
Information specifying the sound source information of the playback audio;
An audio reproduction system comprising: The sound reproduction system according to any one of claims 1 to 3,
The reproduction voice rule information is
Information for designating the sounding timing of the reproduced sound;
An audio reproduction system comprising: The sound reproduction system according to any one of claims 1 to 4,
The reproduction voice rule information is
Information specifying volume change over time for the playback audio;
An audio reproduction system comprising: The sound reproduction system according to any one of claims 1 to 5,
The reproduction voice rule information is
Information specifying a high-frequency component amount change over time for the reproduced sound,
An audio reproduction system comprising: The sound reproduction system according to any one of claims 1 to 6,
The reproduction voice rule information is
Information for specifying parameters relating to the stereophonic sound effect by the reproduced sound,
An audio reproduction system comprising: The sound reproduction system according to any one of claims 1 to 7, further comprising:
Terminal selection means for selecting a host terminal from the plurality of terminals;
Terminal setting means for setting each terminal other than the host terminal as a client terminal;
ID setting means for setting a client ID in each client terminal;
With
The reproduction voice rule information is
Information defining the playback audio played back on each terminal based on each client ID;
An audio reproduction system comprising: The sound reproduction system according to claim 8, wherein
The ID setting means includes
Means for setting each client ID based on a reception intensity signal value at each client terminal by wireless transmission from the host terminal;
An audio reproduction system comprising: The sound reproduction system according to claim 8 or 9,
The rule information setting means includes:
Means for setting the reproduction voice rule information in each terminal by wirelessly transmitting the reproduction voice rule information held by the host terminal to each client terminal;
An audio reproduction system comprising: The sound reproduction system according to any one of claims 1 to 10, further comprising:
Means for controlling the operation of the light emitting device in cooperation with the reproduced sound;
An audio playback system comprising:

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