JPH10282977A - Device and system for reproducing musical sound - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a central device to distribute only musical information of a single format even when respective musical sound reproducing devices all made correspond to the musical information respectively different in format, by converting the musical sound information of the format different from a prescribed format received from the central device in to the prescribed format. SOLUTION: When a CPU 1 is a KARAOKE device 100 receives the KARAOKE music data incapable of reproducing by its sound source 8 in the state as it is from the central device, the CPU 1 makes the received KARAOKE music data stored in a first storage 5. When it becomes the time converting the KARAOKE music data, the CPU 1 reads out a conversion program stored in a conversion program storage 7. Succeedingly, the CPU 1 reads out the KARAOKE music data stored in the first storage 5, and makes convert the KARAOKRE music data base on the read out conversion program, and makes the converted KARAOKE music data stored in a second storage 6. Thereafter, the CPU 1 sends a log indicating execution of conversion processing to the central device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention distributes music information such as karaoke music data from a center device to each music reproduction device, and reproduces the received music information in each music reproduction device. The present invention relates to a tone reproduction device and system for outputting.

[0002]

2. Description of the Related Art Conventionally, in a system such as a communication karaoke system in which a center device having a database storing a large number of karaoke songs and a plurality of tone reproduction devices are connected by communication means such as a public line, Karaoke music data is distributed from the center device to each tone reproduction device, and the distributed karaoke music data is converted into a tone signal and reproduced by a reproducing means provided in each tone reproduction device to perform a karaoke performance. Sound was output.

In such a system in which the center device provides tone information such as karaoke music data to a large number of tone reproduction devices connected to the center device, the center distributes the tone information. At the same time, the same type of musical sound information was transmitted to each musical sound reproducing device at the same time.

[0004]

In the system having the above-described structure, of the plurality of tone reproduction devices connected to the center device, for example, a model change accompanying a version upgrade of the function of the tone reproduction device is performed. A type of tone reproduction that can be provided in a conventionally connected tone reproduction apparatus, that is, a tone information cannot be correctly reproduced unless the tone information has a format different from the format of the tone information that could be properly reproduced. Devices may be connected. This is mainly due to the new specifications of the playback means, for example, in the newly connected musical sound playback device,
Often caused by changes.

In distributing musical tone information from the center device to a new type of tone reproducing device connected to such a center device, the center device uses the new tone reproducing device, that is, the conventional connection. It is necessary to distribute musical tone information in a format different from the format of musical tone information reproducible by the reproducing means in the musical tone reproducing apparatus.

[0006] Then, in the distribution process of the musical sound information on the center device side, for example, for the musical sound information of the same title name, that is, the same song name sung by the same singer, the reproducing means of the new musical sound reproducing device can reproduce in a new format. The tone information, both the tone information and the old-style tone information that can be reproduced by the playback means of the tone generator connected conventionally, is simultaneously distributed to each tone reproducing apparatus, and the tone reproducing apparatus transmits the tone information from the center apparatus side. One of
It becomes necessary to receive only tone information that can be reproduced by the reproducing means.

[0007] Alternatively, to a conventional musical sound reproducing apparatus connected to the center apparatus, old-type musical sound information reproducible by the reproducing means in the conventional musical sound reproducing apparatus is distributed. By using a different communication means than the time of distributing the music information of the format or using the communication means different from the distribution of the music information of the old format, the new type of sound reproducing device that has undergone a model change etc. A new type of tone information that can be reproduced by the reproducing means of the new type of tone reproducing apparatus must be distributed.

Therefore, in a communication karaoke system, for example, even if the karaoke data of the same song sung by the same singer, the tone reproduction devices connected to the center device as described above all transmit the same type of tone information. Since they are not reproduced uniformly, as described above, a plurality of types of tone information that can be appropriately reproduced by the tone reproduction devices are collectively distributed at once, or each of the tone reproduction devices is It is necessary to distribute the karaoke music data in a format corresponding to each of them according to the type of the specification of the reproducing means.

However, as the number of musical sound reproducing devices connected to the center device increases, the sound reproducing device is different from the conventional musical sound reproducing device which can be distributed and reproduced as it is from the center device, that is, from the central device. The number of new types of musical sound reproducing devices that cannot be reproduced only by distribution will increase. For example, in a communication karaoke system, a musical sound reproducing device provided with reproducing means capable of executing a karaoke performance connected to a center device. For the device, as described above, even though it is a new song with the same song name sung by the same singer, as described above, the old-type musical information that can be reproduced by the conventionally connected musical sound reproducing device and the reproduction by the new type musical sound reproducing device Means must be distributed together with new song data as a new form of music information that can be reproduced. Not, by the amount of overlap so that the delivery cost is piling up.

[0010] Alternatively, in the latter example described above, the processing on the center device side is performed in accordance with the differences in the types and specifications of the reproduction means, particularly the reproduction means, to which karaoke music data is distributed from the center device. If it is necessary to distribute karaoke song data of various different formats while distinguishing them, it is necessary to manage which type of karaoke song data needs to be delivered to which musical sound reproducing device and when. Therefore, an extra load is imposed on the distribution work of the music data on the center side, such as a distribution timing such as a distribution schedule of the karaoke music data of each format. On the other hand, even if these new forms of music information are distributed by using another communication means,
To that extent, the problem of increased distribution costs is inevitable.

Further, as described above, the karaoke music data of the same music title sung by the same singer should be distributed from the center device. Since various types of tone reproduction devices are connected to the center device according to the specifications, the center device creates karaoke music data in a format corresponding to the type of the tone reproduction device in advance. It is necessary to create the karaoke song data, or a load is placed on the conversion process itself.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem. Even when each tone reproducing device connected to the center supports tone information of a different format, the center device can provide the same. It is an object of the present invention to provide a musical sound reproducing apparatus and system which can only distribute musical sound information in a single format, thereby simplifying the distribution processing of musical sound information and reducing the distribution cost.

[0013]

In order to achieve this object, a musical sound reproducing apparatus according to claim 1 is a musical sound reproducing apparatus having reproducing means capable of reproducing musical sound information in a predetermined format. Receiving means for receiving tone information in a format different from the predetermined format from the center device, conversion means for converting the tone information received by the receiving means into the predetermined format, and conversion by the conversion means And a converted musical sound information storage means for storing musical sound information.

In the tone reproducing apparatus of the present invention, the reproducing means can reproduce the tone information in a predetermined format. Then, the receiving means receives the tone information in a format different from the predetermined format from the center device, and the converting means enables the tone information received by the receiving means to be reproduced by the predetermined format, that is, the reproducing means. Format, and the converted tone information storage means
The tone information converted by the conversion means is stored.

Therefore, in the musical sound reproducing apparatus of the present invention, even if the receiving means receives, from the center apparatus, the musical sound information in a format different from the format reproducible by the reproducing means in the reproducing apparatus, the converting means may use the different sound information. The musical tone information in the format is converted into musical tone information conforming to a format that can be reproduced by the reproducing means, and the converted musical tone information storing means stores the converted musical tone information.

Therefore, the musical sound reproducing apparatus of the present invention, based on the musical sound information stored in the converted musical information storage means,
It is possible to correctly reproduce a musical tone, and in the center device, according to each connected musical tone reproducing device, the musical tone information conforming to a format reproducible by the reproducing means included in the musical tone reproducing device is used. There is no need to distribute while distinguishing. That is, as a center device,
It does not matter whether or not the tone information to be delivered can be reproduced as it is by the playback means of the connected tone reproducing device, and it is only necessary to deliver a single tone information. Further, it is possible to increase the distribution efficiency of the musical sound information from the center device to a plurality of types of musical sound reproducing devices and reduce the distribution cost. In other words, it is possible to simplify the distribution process of the musical sound information and reduce the distribution cost.

In a specific example, for example, even if the music information is of the same title sung by the same singer and the reproduction means in the music reproduction apparatus does not conform to the predetermined format, the reproduction is performed. Therefore, it is necessary to distribute a plurality of types of tone information while distributing the plurality of types of tone information collectively or distinguishing each of the reproducing means in the connected tone reproducing apparatus. The device only needs to deliver a single piece of tone information without considering the existence of such multiple types of tone information.

Further, the musical sound reproducing device according to claim 2 is
2. The tone reproducing apparatus according to claim 1, further comprising a storage unit for storing the tone information received by the receiving unit, wherein the conversion unit converts the tone information stored by the storage unit. I do.

The musical sound reproducing apparatus having such a configuration is
The storage means stores the tone information received by the receiving means, and the conversion means converts the tone information stored by the storage means into a format that can be reproduced by the reproducing means.

A musical sound reproducing apparatus having such features is:
After the receiving means receives the tone information in a format different from a predetermined format reproducible by the reproducing means of the tone reproducing apparatus sent from the center device, the storing means stores the tone information. Then, the converting means converts the tone information stored by the storage means, that is, tone information in a format different from the format reproducible by the reproducing means, into tone information in a format reproducible by the reproducing means. .

Therefore, for example, from the center device, it is necessary that the receiving means receives such tone information that the converting means cannot perform the conversion process at one time, or it is necessary to convert the tone information received by the receiving means in real time. If not, the storage means may store the tone information received by the receiving means, and at a predetermined time, the conversion means may read out the tone information stored in the storage means for conversion. is there.

Therefore, when the center device distributes the musical tone information to the musical tone reproducing device, it is possible to distribute the musical tone information more flexibly without depending on, for example, the capability of the converting means in the musical tone reproducing device. A system can be constructed.

The musical sound reproducing device according to claim 3 is
3. The tone reproducing apparatus according to claim 2, further comprising a conversion control unit for controlling a conversion time of the tone information by the conversion unit.

In the musical sound reproducing apparatus having such a configuration, the conversion control means controls the conversion time of the musical sound information by the converting means.

Therefore, when the receiving means receives the musical tone information distributed from the center device and stores it in the storing means,
Thereafter, the conversion control means controls the time when the tone information stored in the storage means is converted by the conversion means, so that, for example, the storage capacity of the storage means or the reception means receives and stores the information in the storage means. Depending on the amount of musical information or the like, or in consideration of the operating efficiency of the musical sound reproducing device, the reproducing means can reproduce the musical information stored in the storage means at a more appropriate time. Can be converted as follows.

Further, the musical sound reproducing device according to claim 4 is
4. The tone reproducing apparatus according to claim 1, further comprising a notifying unit that notifies the center device of information indicating that the tone information has been converted by the converting unit.

In the musical sound reproducing apparatus having such a configuration, the notifying means notifies the center apparatus of information indicating that the musical sound information has been converted by the converting means. That is, in the tone reproduction means,
When the tone information received by the receiving means or the tone information stored in the storage means is converted by the converting means into a format that can be reproduced by the reproducing means, the notifying means outputs information indicating the conversion. It notifies the center device.

Therefore, on the side of the center device, the tone information distributed to the connected tone reproducing device can be reproduced by the converting means of the tone reproducing device so that the reproducing means of the tone reproducing device can be reproduced. Can be recognized by the communication means provided in the musical sound reproducing apparatus notifying that the musical information has been converted into musical sound information conforming to the above-mentioned format.

Therefore, on the center device side, the tone information distributed by the center device is converted by the conversion device so that the tone reproduction device capable of reproducing the tone information converted by the conversion device can be specified. It is possible to centrally manage whether or not the music information has been transmitted, and it is possible to more reliably recognize the result of the distribution of the musical sound information.

Further, the musical sound reproducing device according to claim 5 is
5. The musical sound reproducing apparatus according to claim 1, wherein said musical sound information is karaoke music data including at least MIDI information.

Therefore, the musical sound reproducing device having such a configuration is
The reproducing means reproduces karaoke music data including at least MIDI information in a predetermined format, and the receiving means reproduces music information in a format different from the format of the karaoke music data including MIDI information which can be reproduced by the reproducing means. To receive.

Then, the converting means converts the karaoke music data including the MIDI information received by the receiving means into a predetermined format, that is, karaoke music data including the format of the MIDI information reproducible by the reproducing means.

Therefore, in the musical sound reproducing apparatus having such features, the converting means can change the format of the karaoke music data including the MIDI information, for example, the parameter value so that the reproducing means can appropriately reproduce the karaoke music data. It is possible to realize efficient distribution of karaoke song data including MIDI information from the center device.

The musical sound reproducing device according to claim 6 is
6. The tone reproducing apparatus according to claim 1, wherein a format of the tone information differs depending on a type of the reproducing apparatus.

In the tone reproducing apparatus having such a configuration, the tone information distributed from the center is different depending on the specification and type of the reproducing means in the tone reproducing apparatus, and the converting means converts the tone information into the tone. It is converted into a format suitable for the specifications and types of the reproducing means in the reproducing apparatus.

Therefore, even if the center device is connected to a musical sound reproducing device provided with reproducing means of different specifications and types, as long as a single musical information is delivered from the central device side, Since the converting means in the musical sound reproducing device converts the musical sound information into a format according to the specification and type of the reproducing means of the musical sound reproducing device, the distribution processing of the musical sound information is simplified and the distribution cost is reduced. Can be.

Further, in the musical sound reproducing system according to the present invention, a center device having a transmitting means capable of transmitting musical information is connected to the center device by a communication line or the like. A tone reproducing apparatus according to any one of the above.

In the musical sound reproducing system having such a configuration, the transmitting means in the center device can transmit musical information.
The receiving means in the musical sound reproducing device receives the musical sound information.

The operation of the tone reproduction system having the above features is the same as the operation of the tone reproduction device according to any one of the first to sixth aspects, and a description thereof will be omitted.

[0040]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic diagram showing the electrical configuration of a karaoke apparatus 100 that embodies a musical sound reproducing apparatus according to the present invention.

As shown in FIG. 1, a CPU 1 is mounted in the karaoke apparatus 100, and the CPU 1 controls the operation of the karaoke apparatus 100. And
CPU1 stores an operation program for CPU1.
OM2 and RAM3 as a work area are connected.

The CPU 1 is connected to a modem 4 for receiving karaoke music data transmitted from a center device storing a large number of karaoke music data (not shown). The modem 4 receives karaoke song data in a format different from a predetermined format that can be reproduced by a sound source 8 described later. In this sense, the modem 4 corresponds to a receiving unit in the present invention.

Further, via the modem 4, information indicating that the format of the karaoke song data stored in the first storage means described later has been converted is notified to a center device (not shown). In this sense, the modem 4 also corresponds to a notification unit in the present invention.

The CPU 1 is connected to a first storage device 5 for storing karaoke music data received via the modem 4. The first storage device 5 stores the karaoke song data transmitted from the center device and received by the modem 4. In this sense, the first storage device 5
It corresponds to the storage means in the present invention.

The karaoke apparatus 10 is provided in the CPU 1.
0 is connected to a second storage device 6 for storing converted karaoke song data that can be provided. The second storage device 6 stores karaoke song data converted based on a conversion program stored by a conversion program storage device 7 described later. In this sense, the second storage device 6 corresponds to the converted musical sound information storage means in the present invention.

The CPU 1 also stores a conversion program for converting the karaoke song data stored in the first storage device 5 into karaoke song data that can be provided as the karaoke device 100. Device 7
Is connected. Then, the CPU 1 reads the karaoke song data stored in the first storage device 5, further reads the conversion program stored in the conversion program storage device 7, and converts the karaoke song data based on the conversion program. It is converted into a format that can be reproduced by a sound source 8 described later. In this sense, the CPU 1 and the conversion program storage device 7 correspond to conversion means in the present invention.

Further, the CPU 1 stores the second storage device 6
Is connected to a sound source 8 which converts the karaoke music data stored in the karaoke section into a tone signal which is waveform data for generating a tone.
In other words, the sound source 8 converts the karaoke music data in a predetermined format from the center device into a tone signal which is a waveform signal so that the karaoke music data can be reproduced. In this sense, the sound source 8 corresponds to a reproducing unit in the present invention. Then, the sound source 8 changes the karaoke tune data as the musical sound information in a predetermined format into a musical sound signal which is appropriate waveform data.

The pattern to be converted into waveform data for generating an appropriate tone differs depending on the type of the sound source 8. That is, for example, the sound source 8 is set to a sound source corresponding to the MIDI standard and includes sound source data (waveform data) of tone colors for various musical instruments such as a guitar and a piano. , Or how to output the performance expression of these timbres differs depending on the type of the sound source 8.

Therefore, it is necessary to input karaoke music data corresponding to the type of the sound source 8.

An amplifier 9 is connected to the sound source 8, and a speaker 10 is connected to the amplifier 9.
The waveform signal formed by the sound source 8 is amplified by the amplifier 9,
Output from the speaker 10. Note that the microphone 11 is connected to the amplifier 9, and the sound input from the microphone 11 is also amplified by the amplifier 9 and output from the speaker 10 together with the karaoke performance sound.

The CPU 1 sets an operation time for converting the karaoke song data stored in the first storage device 5 into a format that can be reproduced by the sound source 8 based on the conversion program stored in the conversion program storage device 7. For example, the control can be performed by considering the storage amount of the karaoke song data stored in the first storage device 5 or the storage capacity in the first storage device 5. In that sense, this CPU1
Corresponds to the conversion control means in the present invention.

Here, with reference to FIG. 2, the electrical configuration of the sound source 8 as the reproducing means in the present invention will be described in more detail.

The sound source 8 comprises an arithmetic circuit 8a, a sound source data storage section 8b, a filter circuit 8c, an amplifier circuit 8d and an effector circuit 8e.

The karaoke music data read from the second storage device 6 under the control of the CPU 1 is input to the arithmetic circuit 8a. The arithmetic circuit 8a refers to the performance data in the input karaoke music data and the sound source data stored in the sound source data storage unit 8b, and calculates the waveform to be generated.

The sound source data storage unit 8b contains sound source data corresponding to a part of a musical instrument registered in the sound source 8 in advance. The arithmetic circuit 8a selects a waveform corresponding to the performance data in the input karaoke music data.

The waveform data calculated by the arithmetic circuit 8a is further shaped by a filter circuit 8c, balanced by an amplifier circuit 8d, and input to an effector circuit 8e. In the effector circuit 8e, for example, an acoustic effect such as sound is added. This is also added in a predetermined format by a parameter value described later in the performance data of the karaoke music data.

The effector circuit 8c adjusts the tone color such as lingering sound and thickness.

As a result, a waveform based on the MIDI data included in the karaoke song data read from the second storage device 6 is formed and output to the amplifier 9 as a tone signal. Since the waveform forming pattern differs depending on the type of the sound source 8, the sound source 8 that generates a tone signal as a waveform signal by inputting karaoke music data including MIDI data in a predetermined format is different from that. When karaoke song data including MIDI data in the format is input,
The karaoke song data will output a performance sound different from the originally intended performance sound.

Here, the format of karaoke song data including MIDI data transmitted from the center device to the karaoke device 100, that is, the format, will be described with reference to FIG.

As shown in FIG. 3A, karaoke music data 5a transmitted from the center device to the karaoke device 100
Is a header 5d for storing identification information for identifying karaoke song data such as a song title and a singer name, lyrics information 5c for displaying lyrics telops on a display (not shown), and performance data 5b for reproducing performance sounds. It is composed of

The performance data 5b is shown in FIG.
As shown in (b), the parts for outputting the performance sounds of the respective instruments corresponding to the built-in tone generator data registered in the tone generator 8 in advance are divided into, for example, parts of six types of instruments A to F. Parameter values are set for each part.

Since these six types of parts are configured as performance data, the sound source 8 can simultaneously reproduce six types of instrument sounds.

The karaoke song data 5a having such a configuration is
The data is transmitted from the center device, received by the modem 4 of the karaoke terminal device 100, and stored in the first storage device 5. At a predetermined time, the CPU 1 converts the karaoke music data based on the conversion program stored in the conversion program storage device 7 so that the karaoke music data can be appropriately reproduced by the sound source 8. Then, the converted karaoke song data is stored in the second storage device 6.

The format of the converted karaoke music data stored in the second storage device 6 will now be described with reference to FIG.

As shown in FIG. 4A, the converted karaoke song data 6a is a header 6 for storing identification information for identifying karaoke song data such as a song title and a singer name.
d, lyrics information 6c for displaying lyrics telops on a display (not shown), and performance data 6b for reproducing performance sounds.

The parameter set value in the performance data 6b is different from the parameter set value in the performance data 5b described above because it is converted by the conversion program.

This will be specifically described with reference to FIG.

As shown in FIG. 4B, the parameter values set for each of the six instrumental parts A to F are compared with the parameter values of the performance data before conversion. Is different. That is, as compared with the parameter values of the performance data described with reference to FIG.
, The parameter value of musical instrument B from “2” to “72”, the parameter value of musical instrument C from “3” to “73”, the parameter value of musical instrument D from “4” to “74”, and the parameter value of musical instrument E. The parameter value is changed from “5” to “75”, and the parameter value of the musical instrument F is changed from “6” to “76”.

This means that parameter values such as control change or system exclusive in each part have been changed.

The sound source 8 can form an appropriate waveform signal corresponding only to the karaoke music data having the converted parameter values.

Next, the operation of the karaoke apparatus 100 for receiving the karaoke song data from the center apparatus and converting it into a reproducible format will be described with reference to the flowchart of FIG.

The CPU 1 in the karaoke apparatus 100 waits for the reception of karaoke music data from the center apparatus (S1), and the karaoke music data which cannot be reproduced by the sound source 8 as it is. Is received by the modem 4 (S1: YES).

Then, the CPU 1 stores the received karaoke music data in the first storage device 5 (S3).

When it is time to convert the karaoke song data (S5: YES), the CPU 1 reads the conversion program stored in the conversion program storage device 7 (S7).

Here, the method of determining the conversion time of the karaoke music data in S5 will be described.

For example, when the data amount of the karaoke song data continuously stored in the first storage device 5 reaches a predetermined amount, the conversion time may be, for example, 80 times the storage capacity of the first storage device 5. The time when the percentage is reached may be determined as the conversion time. Alternatively, each time karaoke song data is distributed and stored in the first storage device 5, a conversion process described later may be performed as a conversion time.

When the CPU 1 reads the conversion program from the conversion program storage device 7 in the operation of S7,
Subsequently, the karaoke song data stored in the first storage device 5 is read (S9), the karaoke song data is converted based on the read conversion program (S11), and the converted karaoke song data is stored in the second storage device. The log is stored in the device 7 (S13), and a log indicating that the conversion process of the karaoke music data has been executed is sent to the center device via the modem 4 (S15), and a series of processes is terminated.

That is, in the karaoke apparatus 100, the sound source 8 as a reproducing means can reproduce karaoke music data including MIDI information as musical sound information in a predetermined format. Then, the modem 4 as the receiving means receives the karaoke music data in a format different from the predetermined format from the center device, and the CPU 1 and the conversion program storage device 7 as the converting means transmit the karaoke music data received by the modem 4. The data is converted into the predetermined format, that is, a format reproducible by the sound source 8, and the second storage device 6 as the converted musical sound information storage means stores the karaoke music data converted by the CPU 1 and the conversion program storage device 7. Remember. In this case, the first storage device 5 as the storage means stores the karaoke song data received by the modem 4. Further, the CPU 1 as the conversion control means includes the first storage device 5
Is controlled in consideration of, for example, the amount of karaoke song data stored in the first storage device 5 and the like.

Further, the modem 4 as the notifying means notifies the center device of information indicating that the karaoke music data has been converted and stored in the second storage device 6.

In other words, according to the karaoke apparatus 100, as long as a single form of karaoke music data is distributed from the center apparatus, the conversion program stored in the conversion program storage device 7 in the karaoke apparatus 100 is converted to the conversion program. Based on this, it is only necessary to convert to a format according to the type and specification of the sound source 8, so that the distribution efficiency of the karaoke song data from the center device 1 can be increased or the distribution cost can be reduced.

Again, referring to the configuration diagrams of FIGS. 6 and 7, the karaoke apparatus 100 as the musical sound reproducing apparatus and the musical sound reproducing system as the musical sound reproducing system of the present invention are compared with the prior art. Will be described.

Conventionally, as shown in FIG.
In the communication karaoke system in which the karaoke apparatus 300 and the karaoke apparatus 300 are connected to each other, the old karaoke music data 200a and the karaoke apparatus 400 which can be appropriately reproduced by the karaoke apparatus 300 are transmitted from the center apparatus 200. Karaoke song data 200b in a new format that can be properly reproduced by the user must be distributed via the communication line 150.

Therefore, the old-style karaoke song data 200a
In addition, in the sense that both data of the karaoke song data 200b of the new format and the new format must be delivered, the distribution costs are duplicated. In addition, when the distribution is performed at these different times or by the communication means, the distribution process becomes complicated. Furthermore, in creating karaoke song data, it is necessary to create data of different formats, which imposes a load on karaoke song data creation.

Therefore, according to the karaoke apparatus and the communication karaoke system of the present invention, as shown in FIG.
0b reproduces karaoke music data in different formats, the center device 200 transmits only the karaoke music data 200a in a single format to the communication line 15.
0, the karaoke apparatus 100a
It can be converted into a format that can be reproduced by the sound source 8 by a conversion program as a conversion means in the karaoke apparatus 100b and the karaoke apparatus 100b, so that the distribution cost can be reduced. It is possible to prevent unnecessary load from being applied to the creation of the music data itself.

As described above, the musical sound reproducing apparatus and system of the present invention are not limited to the karaoke apparatus and the communication karaoke system of the present embodiment, and various applications are possible without departing from the gist of the present invention.

[0087]

As is apparent from the above description,
According to the musical sound reproducing device of the first aspect, the musical sound can be correctly reproduced based on the musical sound information stored in the converted musical sound information storage means. In accordance with each tone reproducing apparatus, there is no need to distribute the tone information in a format reproducible by the reproducing means of the tone reproducing apparatus while distinguishing the tone information. That is, the center device does not consider or consider whether or not the tone information to be distributed can be reproduced as it is by the reproducing means of the connected tone reproducing device. Since only the distribution is required, the distribution efficiency of the musical tone information from the center device to a plurality of types of musical tone reproducing devices can be improved, and the distribution cost can be reduced. In other words, it is possible to simplify the distribution processing of the musical sound information and reduce the distribution cost.

According to the musical tone reproducing apparatus of the second aspect, the musical tone information transmitted from the center device and having a format different from a predetermined format reproducible by the reproducing means in the musical tone reproducing device is received. After being received by the means, the storage means stores the information. Then, the converting means converts the tone information stored by the storage means, that is, tone information in a format different from the format reproducible by the reproducing means, into tone information in a format reproducible by the reproducing means. For example,
If the receiving means receives from the center device the tone information that cannot be converted by the converting means at one time, or if it is not necessary to convert the tone information received by the receiving means in real time, the storage means However, the tone information received by the receiving means may be stored, and at a predetermined time, the converting means may read out the tone information stored in the storing means to perform the conversion.

Therefore, when the center device distributes the musical tone information to the musical tone reproducing device, it is possible to distribute the musical tone information more flexibly without depending on, for example, the capability of the conversion means in the musical tone reproducing device. A system can be constructed.

Further, according to the musical sound reproducing apparatus of the third aspect, when the musical sound information distributed from the center apparatus is received by the receiving means and stored in the storage means, thereafter, the conversion control means: Since the conversion time of the tone information stored in the storage means is controlled by the conversion means, for example, according to the storage capacity of the storage means, the amount of tone information received by the reception means and stored in the storage means, etc. Or at a more appropriate time, while taking into account the operating efficiency of the musical sound reproducing device, the musical sound information stored in the storage means can be converted into a format that can be reproduced by the reproducing means. .

According to the musical sound reproducing device of the fourth aspect, the musical sound information distributed to the connected musical sound reproducing device is actually converted by the conversion means in the musical sound reproducing device on the side of the center device. Since the communication means of the musical sound reproducing apparatus can recognize whether or not the reproducing means of the musical sound reproducing apparatus has been converted into musical information in a predetermined format that can be reproduced, the center apparatus can recognize the information. On the side, for example, it is possible to intensively determine whether or not the tone information distributed by the center device has been converted by the conversion means, such that a tone reproduction apparatus capable of reproducing the tone information converted by the conversion means can be specified. It can be managed, and the result of distribution of musical sound information can be recognized more reliably.

Further, according to the musical sound reproducing apparatus of the fifth aspect, the converting means can change the format of the musical sound information including the MIDI information, for example, the parameter value so that the reproducing means can appropriately reproduce the musical information. As a result, it is possible to realize efficient distribution of musical sound information including MIDI information from the center device.

Further, according to the musical sound reproducing apparatus of the sixth aspect, the musical sound information distributed from the center differs according to the specification and type of the reproducing means in the musical sound reproducing apparatus. Since the tone information is converted into a format suitable for the specification and type of the reproducing means in the musical sound reproducing apparatus, it is assumed that a musical sound reproducing apparatus having different specifications and types of reproducing means is connected to the center device. Also,
From the center device side, as long as a single piece of musical information is distributed, the converting means in the musical sound reproducing apparatus converts the musical information into a format according to the specification and type of the reproducing means of the musical sound reproducing apparatus. Therefore, the distribution process of the musical sound information can be simplified and the distribution cost can be reduced. According to the musical sound reproducing system of the seventh aspect, the transmitting means in the center device can transmit musical information, and the receiving means in the musical sound reproducing apparatus receives the musical information.
The effects of this system are the same as those described above as the effects of the musical sound reproducing device according to the first to sixth aspects, and a description thereof will be omitted.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an electrical configuration of a karaoke apparatus according to an embodiment.

FIG. 2 is a block diagram showing a configuration of a sound source in the karaoke apparatus.

FIG. 3 is a diagram showing a configuration of karaoke song data before conversion.

FIG. 4 is a diagram showing a configuration of karaoke music data after conversion.

FIG. 5 is a follow chart showing the operation of the karaoke apparatus.

FIG. 6 is a configuration diagram of a conventional karaoke system.

FIG. 7 is a configuration diagram of a karaoke system of the present embodiment.

[Explanation of symbols]

 Reference Signs List 1 CPU 5 First storage device 6 Second storage device 7 Conversion program storage device 8 Sound source

Claims (7)

[Claims] 1. A musical sound reproducing apparatus having reproducing means capable of reproducing musical sound information conforming to a predetermined format, receiving means for receiving musical sound information of a format different from the predetermined format from a center device; And a conversion means for converting the tone information received by the conversion means into the predetermined format, and a converted tone information storage means for storing the tone information converted by the conversion means. 2. The tone reproducing apparatus according to claim 1, further comprising: a storage unit configured to store the tone information received by the receiving unit, wherein the conversion unit converts the tone information stored by the storage unit. A tone reproducing apparatus characterized by the following. 3. The tone reproducing apparatus according to claim 2, further comprising a conversion control means for controlling a timing of converting the tone information by said converting means. 4. The musical sound reproducing apparatus according to claim 1, further comprising a notifying means for notifying the center apparatus of information indicating that the musical sound information has been converted by the converting means. Music playback device. 5. The musical sound reproducing device according to claim 1, wherein said musical sound information is karaoke music data including at least MIDI information. 6. The tone reproducing apparatus according to claim 1, wherein a format of said tone information is different depending on a type of said reproducing means. 7. A center device having transmission means capable of transmitting musical sound information, and the musical sound reproducing device according to claim 1 connected to the center device by a communication line or the like. A tone reproduction system characterized by being performed.