JP4103405B2 - Musical sound generation method and automatic performance apparatus for network automatic performance system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a musical sound generation method and an automatic performance apparatus of a network automatic performance system capable of playing an automatic performance music such as a karaoke music with a thicker sound and rich in expressiveness.
[0002]
[Prior art]
The karaoke performance sound (especially the number of pronunciations) generated by the karaoke device depends on the function of the sound source, and a karaoke device equipped with a sound source capable of simultaneously producing 64 sounds can play karaoke songs with 64 sounds, A karaoke apparatus equipped with a sound source capable of simultaneously producing 128 sounds can play karaoke songs with 128 sounds. Generally, karaoke songs can be played more expressively when many musical sounds can be pronounced simultaneously.
[0003]
[Problems to be solved by the invention]
However, it is extremely difficult to increase the number of pronunciations of the karaoke apparatus because it is necessary to add or exchange sound sources. In addition, there are stores in which a plurality of karaoke devices are installed, such as a karaoke store having a plurality of karaoke boxes. In such a store, each karaoke device operates stand-alone.
[0004]
The present invention provides a network automatic system capable of playing a karaoke song with a large number of simultaneous pronunciations using a sound source of a karaoke device that is not playing a karaoke song in an environment where a plurality of karaoke devices are connected to each other. It is an object of the present invention to provide a musical sound generation method and automatic performance device for a performance system.
[0005]
[Means for Solving the Problems]
  The invention of claim 1 is a system comprising a plurality of automatic performance devices each having a sound source and communication means for connecting the automatic performance devices.
  When playing a song with a first automatic performance device that is one of the plurality of automatic performance devices,
  A performance data for playing a song is input to the sound source of the own device to generate a musical tone, and is another one of the plurality of automatic performance devices, and the second automatic performance device that is not playing the song at that timeThe same data as the performance data input to the sound source of the first automatic performance device with respect to the second automatic performance deviceSend
  In the second automatic performance device, the performance data received from the first automatic performance device is input to the sound source to generate a musical sound, and the generated musical sound is returned to the first automatic performance device,
  In the first automatic performance apparatus, the musical sound generated by the sound source of the own apparatus and the musical sound returned from the second automatic performance apparatus are mixed and output.
  The invention of claim 2 is a system comprising a plurality of automatic performance apparatuses each having a sound source and communication means for connecting the automatic performance apparatuses.
When playing a song with a first automatic performance device that is one of the plurality of automatic performance devices,
A performance data for playing a song is input to the sound source of the own device to generate a musical tone, and is another one of the plurality of automatic performance devices, and the second automatic performance device that is not playing the song at that time Transmitting performance data in which the pitch of performance data input to the sound source of the first automatic performance device is shifted by a predetermined value,
In the second automatic performance device, the performance data received from the first automatic performance device is input to the sound source to generate a musical sound, and the generated musical sound is returned to the first automatic performance device,
In the first automatic performance apparatus, the musical sound generated by the sound source of the own apparatus and the musical sound returned from the second automatic performance apparatus are mixed and output.
The invention of claim 3 is a system comprising a plurality of automatic performance devices each having a sound source, and communication means for connecting the automatic performance devices.
When playing a song with a first automatic performance device that is one of the plurality of automatic performance devices,
A performance data for playing a song is input to the sound source of the own device to generate a musical tone, and is another one of the plurality of automatic performance devices, and the second automatic performance device that is not playing the song at that time And transmitting performance data of a part different from the performance data input to the sound source of the first automatic performance device,
In the second automatic performance device, the performance data received from the first automatic performance device is input to the sound source to generate a musical sound, and the generated musical sound is returned to the first automatic performance device,
In the first automatic performance apparatus, the musical sound generated by the sound source of the own apparatus and the musical sound returned from the second automatic performance apparatus are mixed and output.
[0006]
  Claim4The invention of claim 1Or any one of claims 3 to 4.In the present invention, the performance data is transmitted from the first automatic performance device to the second automatic performance device via the LAN, and the musical sound is transmitted from the second automatic performance device to the first automatic performance device. Is performed with a modulated analog signal.
[0010]
  Claim5The invention of claim 1To any one of 4In the invention, the automatic performance device is a karaoke device, and the performance data is song data for playing a karaoke song.
[0011]
  Claim6The invention of
  Storage means for storing musical performance data;
  Sound source means for generating musical sounds based on performance data;
  Communication means for communicating with other automatic performance devices;
  While inputting the performance data to the sound source means, to other automatic performance device via the communication meansTransmits a signal that detunes the sound source and is the same as the performance data input to the sound source meansPerformance means for transmitting performance data;
  Mixing means for mixing the musical sound generated by the sound source means and the musical sound received from the other automatic performance device via the communication means and outputting from the speaker;
  It is provided with.
The invention of claim 7 is a storage means for storing musical performance data;
Sound source means for generating musical sounds based on performance data;
Communication means for communicating with other automatic performance devices;
Performance means for inputting the performance data to the sound source means and transmitting performance data in which the pitch of the performance data input to the sound source means is shifted by a predetermined value to another automatic performance device via the communication means;
Mixing means for mixing the musical sound generated by the sound source means and the musical sound received from the other automatic performance device via the communication means and outputting from the speaker;
It is provided with.
The invention of claim 8
Storage means for storing musical performance data;
Sound source means for generating musical sounds based on performance data;
Communication means for communicating with other automatic performance devices;
Performance means for inputting the performance data to the sound source means and transmitting performance data of a part different from the performance data input to the sound source means to another automatic performance device via the communication means;
Mixing means for mixing the musical sound generated by the sound source means and the musical sound received from the other automatic performance device via the communication means and outputting from the speaker;
It is provided with.
[0012]
  Claim9The invention of claim9. The method according to any one of claims 6 to 8.In the invention, the communication means transmits performance data to another automatic performance device via a LAN, and receives a musical sound from the other automatic performance device as a modulated analog signal.
[0016]
  Claim10The invention of
  Storage means for storing musical performance data;
  Sound source means for generating musical sounds based on performance data;
  Communication means for communicating with other automatic performance devices;
  The performance data is input to the sound source means to play a song, and when the song is not being played, performance data is received from another automatic performance device via the communication means and input to the sound source means.The sound source means when detunedAndSaidControl means for returning the musical sound generated by the sound source means to the other automatic performance device;
  It is provided with.
[0017]
  Claim11The invention of claim10In the invention, the communication means receives performance data from another automatic performance device via a LAN, and transmits a musical sound to the other automatic performance device with a modulated analog signal.
[0019]
≪Action≫
In the present invention, when a musical piece is played on an automatic performance device such as a karaoke device, a musical sound is generated using a sound source of another automatic performance device (karaoke device) that is not used at that time, and the musical sound generated by the player is mixed with the musical sound. And output. As a result, the number of simultaneous sounds can be increased without adding or exchanging the sound source of each automatic performance device, thereby enabling the performance of a song with more expressive power.
The communication means may be either digital communication or analog communication, or both may be used together. When both are used together, the performance data for generating the musical sound may be transmitted by digital communication (LAN), and the generated musical sound signal may be transmitted by analog. In order to increase the number of analog signal transmissions, frequency multiplexing may be performed by superimposing the analog signal on a high frequency carrier. In the case of a karaoke system, if a coaxial cable that transmits background video is used as an analog communication means, and a LAN that distributes music data is used as a digital communication means that transmits performance data or the like, a new communication means is installed. It is possible to transmit singing voices, evaluation results and the like using existing resources without doing so. In the case where only digital communication is performed, the musical sound signal may be transmitted as digital streaming data.
[0020]
The performance data played by the (first) automatic performance device may be the same as the performance data played by the (second / other) automatic performance device. By changing the pitch of the musical sound generated from the performance data to a predetermined value, the mixed musical sound can be thickened. The predetermined value may be about several cents or one octave. A chorus effect can be obtained when the same musical sound is generated with a shift of several cents, and a rich musical sound with a harmonic structure can be obtained when the same musical sound is generated by shifting up or down one octave. In order to shift the generated pitch by a predetermined value, the pitch value of the performance data input to the second (other) automatic performance device may be rewritten so as to shift the predetermined value, or the second (other) The pitch of the musical sound generated by the sound source of the automatic performance device may be set (detuned) so as to be shifted from the pitch indicated by the performance data by the predetermined value.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1A is a diagram showing a configuration of a network karaoke system in a karaoke box store which is an embodiment of the present invention. FIG. 2B is a block diagram of each karaoke apparatus (karaoke terminal).
The plurality of karaoke apparatuses 2 and the server apparatus 1 are connected to each other by a LAN 3 such as Ethernet (registered trademark) and a coaxial cable 4 for transmitting video signals in the UHF band. The server device 1 distributes music data to each karaoke device 2 via the LAN 3, and always broadcasts a background image modulated by a UHF carrier wave on the coaxial cable 4. Background videos of multiple genres such as pops and enka are simultaneously broadcast on different UHF channels.
[0022]
The karaoke device 2 stores music data for playing a karaoke song, reads out the song data in response to a singer's request, and generates and outputs a performance sound of the karaoke song by inputting it into a sound source. To do. In addition, in this embodiment, from the first karaoke device (A terminal) that is performing the performance of karaoke music to the second karaoke device (B terminal) that is not performing the performance of karaoke music. Then, the music data (performance data of a predetermined track) is transmitted via the LAN 3, and the tone generator based on the music data is generated by the sound source of the B terminal. The musical sound generated by the sound source of the B terminal is returned to the A terminal through the coaxial cable 4. The A terminal can output a performance sound rich in expressiveness by mixing the musical sound generated by the sound source of its own device with the musical sound returned from the B terminal.
[0023]
In FIG. 2B, a CPU 10 for controlling the operation of the entire karaoke apparatus has a ROM 11, a RAM 12, an operation panel 13, a sound source 14, a communication modem 19, a network interface 20, a hard disk storage device (hard disk) 21 via an internal bus. , A BGV storage device 22, a video generation device 23, and a coaxial modulator / demodulator 24 are connected.
[0024]
The ROM 11 stores an activation program necessary for activating this apparatus. A system program for controlling the operation of the apparatus, a karaoke performance execution program, and the like are stored in the hard disk 21. When the power of the karaoke apparatus is turned on, a system program and a karaoke performance program are read into the RAM 12 by the above startup program.
[0025]
In addition to the program storage area in which the program is written, the hard disk 21 is set with a music data storage area for storing music data. The song data storage area can store music data for thousands of songs, and the song data is distributed from the server 1 to the karaoke apparatus via the LAN 3 and the network interface 20.
[0026]
The RAM 12 has a program storage area for reading a program from the hard disk 17 when the apparatus is started, a reservation list for registering the song number of the requested karaoke song, an execution song data storage area for reading the song data of the karaoke song to be played, etc. Is set.
The communication modem 19 is used when downloading music data by communicating with the distribution center 9 directly without going through the server 1 in a store operated by one karaoke apparatus such as a restaurant.
[0027]
The operation panel 13 includes a numeric keypad and a matrix display, and includes a remote control receiving unit and a remote control. The user selects (requests) a karaoke song via the operation panel 13. When the song number is input from the operation panel 13, the CPU 10 registers the song number in the reservation list set in the RAM 12, and plays the karaoke songs in the order of reservation.
[0028]
The CPU 10 reads the music data of the karaoke song to be played from the hard disk 21 to the RAM 12, reads the event data of each track (part) of the music data in synchronization with the tempo clock, and sequentially outputs it to the sound source 14. Play a song. The musical tone signal formed by the sound source 14 is mixed with the singing voice by the mixer 16 and output from the speaker 18. The singing voice of the singer is input from the voice input unit 17 including a microphone.
[0029]
At this time, BGV (Background Video) data is read from the BGV storage device 22 and input to the video generation unit 23 to reproduce the video. In the video generation unit 23, the lyrics telop character pattern input from the CPU 10 is superimposed on the background video and output to the monitor 25. The video generation unit 23 superimposes a lyrics telop on the background video input as a UHF video signal from the coaxial modulator / demodulator 24 instead of reproducing the BGV data stored in the BGV storage device 22 and monitors the BGV data. 25 can also be displayed. Note that a DVD player can be used as the BGV storage device 22, and the video generation unit 23 includes an MPEG decoder, a video synthesis circuit, and the like.
[0030]
Further, the CPU 10 searches the other karaoke devices connected via the network (LAN 3 and coaxial cable 4) to determine whether there is an idle karaoke device that is not used for karaoke performance at that time. Is used to generate and output more (double) musical sounds using the sound source of the other karaoke apparatus than when only the sound source of its own apparatus is used.
Here, with reference to FIG. 2, the connection of the karaoke apparatus (A terminal) which plays a karaoke song and the karaoke apparatus (B terminal) of an idle state is demonstrated. A karaoke performance program (sequencer) operating on the CPU 10 of the A terminal outputs performance data to the sound source of its own device and also outputs performance data to the sound source of the B terminal. The A terminal and the B terminal transmit and receive this performance data by streaming through the socket program and the LAN 3, and all the communication procedures are processed by the socket program, so the sequencer of the A terminal outputs to the sound source of its own device. The performance data can be output to the sound source of the B terminal in the same manner as described above. In the case of general MIDI data as performance data, the transfer rate is 31.25 kbps, and the general Ethernet (registered trademark) transfer rate as LAN is 10 Mbps or 100 Mbps, but high-speed communication means ( When transferring low-speed data (MIDI) over a LAN, it is easy to control because it is only necessary to transmit the data at an appropriate timing.
[0031]
The tone signal generated by the sound source of the B terminal is superimposed on the UHF band carrier wave and sent back to the A terminal via the coaxial cable 4. The A terminal demodulates the original musical sound signal, mixes it with the musical sound generated by the sound source of the A terminal, and outputs it. As a result, it is possible to play a karaoke song with a thicker sound than when the A terminal alone is played.
[0032]
The music data stored in the karaoke device of the A terminal is usually for performance only with the sound source of the own device, so it was created according to the number of simultaneous pronunciations (number of sound channels) of the sound source of the own device It does not have a performance data track (part) for output to the sound source of the B terminal. Therefore, the musical sound generated by the sound source of the A terminal and the musical sound generated by the sound source of the B terminal are mixed by shifting the pitch of the performance data that generates the musical sound by the sound source of the own device to the B terminal by shifting it by several cents. In some cases, a chorus effect that can produce a thick musical sound by generating a subtle beat is obtained. In this case, the pitch of each performance data may be rewritten up or down by several cents. Each tone generation channel of the B terminal sound source is detuned up or down by several cents in advance, and the performance data for the A terminal is input as it is. May be. The sound source of the B terminal can be detuned by inputting a system exclusive message from the A terminal.
[0033]
Further, the pitch of the performance data for the A terminal may be rewritten to the upper or lower octave and transmitted to the B terminal. In this case as well, the pitch of each performance data may be rewritten up and down in octaves, and each tone generation channel of the sound source of the B terminal is detuned up and down in advance and the performance data for the A terminal is input as it is. May be. The sound source of the B terminal can be detuned by inputting a system exclusive message from the A terminal.
[0034]
On the other hand, if there is music data having a performance data track for input to the sound source of the B terminal separately from the performance data track input to the sound source of the A terminal, it may be used. For example, the current karaoke apparatus includes a sound source with 64 sound sources capable of simultaneous sound generation and a sound source with 128 channels, and a karaoke apparatus with a 64 channel sound source is for 64 channels. Music data is distributed, and 128-channel music data is distributed to a karaoke apparatus equipped with a 128-channel sound source. Therefore, when a 64-sound karaoke apparatus (A terminal) generates music using the sound source of another 64-sound karaoke apparatus (B terminal), the music data for 128 channels of the same karaoke song from the server apparatus 1. May be downloaded temporarily and reproduced to generate separate musical sounds for each of the sound sources of the A terminal and the B terminal.
[0035]
Here, when a certain A terminal searches for another idle karaoke device (B terminal), the terminal A directly broadcasts to each other karaoke device to inquire whether it is in an idle state. However, in this embodiment, the server device 1 manages the operation state (status) of each karaoke device, and the A terminal playing the karaoke song is a terminal in an idle state with respect to the server device 1 ( Inquires whether there is a karaoke device). The server device 1 notifies the A terminal of any idle karaoke device. When there are a plurality of idle karaoke apparatuses, the one with a young IP address or at random may be selected. The A terminal communicates with the B terminal, removes the sound source of the B terminal from the management of the CPU of the B terminal, and operates under the control of the CPU of the A terminal.
[0036]
When the B terminal, which is a support terminal, is selected by the above operation, the A terminal uses the server to allocate a channel on the coaxial cable for returning music from the B terminal to the A terminal. The device 1 is inquired about an empty channel. As described above, the server device 1 is a device that constantly broadcasts a plurality of types of background images using a plurality of channels in the UHF band on the coaxial cable 4, and registers which UHF channel is currently used in the channel management table. I manage. When there is an inquiry about the empty channel, the server device 1 searches for an empty channel with reference to the channel management table, selects one of them, sends it back to the A terminal. At the same time, the fact that this channel is used for communication between the A terminal and the B terminal is registered in the channel management table. Here, this channel is assumed to be 62 channels. In addition, since only the musical sound is transmitted from the B terminal to the A terminal, the bandwidth may be narrower than the TV channel.
[0037]
With the above operation, the channel on the coaxial cable 4 is secured, and when communication between the sound source of the B terminal and the LAN 3 is established, the A terminal starts playing the karaoke song. The performance of this karaoke song is an operation of outputting the performance data of each track of the music data to the sound source 14 and the sound source of the B terminal, and mixing and outputting the musical sound returned from the B terminal by the mixer 15.
[0038]
Also in the B terminal, a plurality of musical sounds synthesized by the sound source 14 are mixed and returned to the L / R channel in advance. In the A terminal, the musical sound generated by the sound source 14 of the A terminal is mixed with the L / R channel, and the musical sound of the L / R channel returned from the B terminal is superimposed and output to the amplifier 16.
[0039]
The mixing setting information of the mixer 15 of the B terminal may be transmitted from the A terminal based on the music data.
[0040]
3 to 5 are flowcharts showing operations of the server device 1, the A terminal, and the B terminal. FIG. 3A is a flowchart showing the operation of the server device 1. The server device 1 polls the status for each of the n terminal devices, and stores this in the status table Tsts (x) (s1, s2, s3). The status is any one of karaoke music playing (Play), idle state (Idle), and musical sound generation support (Supprt) as shown in FIG. During the performance (Play), there are statuses of normal performance (Play 1) and overtone performance (Play 2).
[0041]
Next, it is determined whether there is an inquiry of an idle terminal from any karaoke apparatus (A terminal) (s4). When this inquiry is made, if there is an idle terminal with reference to the status table, the ID (number or code) of the terminal device is returned (s5). If there is no idle terminal, a response indicating that there is no idle terminal is returned.
[0042]
If there is an inquiry about the channel use of the coaxial cable 4 (s6), the channel management table is referred to, and if there is an unused channel, the channel is returned (s7) and the channel is used. The fact that it is in the middle is written in the channel management table and updated (s8). If there is no available channel, a response to that effect is sent in s7.
[0043]
If there is a notification of the end of use of the channel of the coaxial cable 4 (s9), the column of the channel in the channel management table is rewritten to an empty channel and updated (s10).
[0044]
FIG. 4 is a flowchart showing the operation of the A terminal that plays a karaoke song. When a user requests a karaoke song and instructs the start of the song (s11), the server device 1 is inquired whether there is an idle terminal (s12). In response to this, if there is a reply from the server device 1 indicating that there is an idle terminal, that is, a reply designating one idle terminal (B terminal) as a support terminal, the operation proceeds to the operation of s15 or less in the judgment of s13 . If there is a reply that there is no idle terminal, the process proceeds to a normal performance operation (s14). Here, the normal performance operation is an operation in which a musical sound of a karaoke piece is generated and played using only the sound source of the device itself.
[0045]
If there is a reply specifying the idle terminal, this idle terminal (B terminal) is set as a support terminal, and then the server apparatus is inquired about an available UHF channel of the coaxial cable (s15). In response to this, if there is a reply from the server device indicating that the coaxial cable can be used, that is, a reply designating an empty channel, the operation proceeds to the operation from s18 on the judgment of s16. If there is a reply that there is no empty channel, the routine proceeds to the normal performance operation similar to s14 (s17).
[0046]
If the B terminal is designated and there is an empty channel of the coaxial cable 4, communication with the B terminal via the LAN 3 is established (s18), and then the performance of the karaoke song is started. The performance of this karaoke song is an operation (s19) of outputting performance data to the sound source 14 of the own device and also to the sound source of the B terminal via the LAN 3. At this time, a system exclusive message for instructing detuning to the sound source of the B terminal is transmitted from the CPU 10 of the A terminal as necessary. The tone generator of the B terminal generates a musical tone based on the performance data that is input, and superimposes this musical tone on a carrier wave and sends it back from the coaxial cable 4. Mix and output (s20). This operation is continued until the music ends (s21).
[0047]
After the music is finished, the server device is notified that the use of the 62 channels of the coaxial cable is finished (s22), the communication with the terminal B is disconnected (s23), and the operation is finished.
[0048]
FIG. 5 is a flowchart showing the operation of the B terminal. First, it is determined whether or not the vehicle is currently idle (s30). If not in the idle state, the currently requested processing (such as karaoke performance) is executed (s31). If it is in an idle state, it waits until there exists a connection from another karaoke apparatus (s32).
[0049]
When there is a connection from another karaoke device (s32), the status of the device is switched to the support mode (s33). Thereafter, since performance data is sent from the connected karaoke apparatus (A terminal), a musical sound is generated based on the performance data and output to the coaxial cable 4 (s34). In this operation, the sound source is controlled by the A terminal, and the CPU 10 of the B terminal only needs to control reception of performance data and modulation / transmission of musical sounds. This operation is continued until the end of the karaoke song (s39), but when the karaoke device is started to be used in the middle of the song, that is, when the karaoke device is played with this karaoke device (s35). Then, after the mode is switched from the support mode to the play mode (s36) and the terminal A is notified that the support is discontinued (s37), the operation as the performance terminal is started (s38). That is, the operation of FIG. 4 is started here.
[0050]
On the other hand, when the music is finished in the support mode, the own state is returned to the idle state (s40), and the operation is finished.
[0051]
In this embodiment, a plurality of karaoke apparatuses are connected by a LAN and a coaxial cable. However, any connection form of each karaoke apparatus may be used. In this embodiment, an analog musical tone signal is transmitted from the B terminal to the A terminal, but the musical tone signal may be transmitted as it is digitally. If the LAN is high-speed, this transmission can be performed only by the LAN.
[0052]
【The invention's effect】
As described above, according to the present invention, karaoke songs can be played with a thicker sound by using existing communication facilities and free resources, so that customer satisfaction is increased without adding karaoke store facilities. It becomes possible.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a karaoke apparatus network system and a karaoke apparatus according to an embodiment of the present invention;
FIG. 2 is a diagram for explaining a form of transmission / reception of performance data and musical tone signal of a karaoke apparatus for playing a karaoke song
FIG. 3 is a flowchart showing the operation of the server device.
FIG. 4 is a flowchart showing the operation of a karaoke apparatus (A terminal) that plays karaoke songs.
FIG. 5 is a flowchart showing the operation of a karaoke apparatus (B terminal) that supports scoring.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Server apparatus, 2 ... Karaoke apparatus, 3 ... LAN, 4 ... Coaxial cable,
DESCRIPTION OF SYMBOLS 10 ... CPU, 11 ... ROM, 12 ... RAM, 13 ... Operation panel, 14 ... Sound source, 15 ... A / D converter, 16 ... Mixer, 17 ... Audio | voice input part, 18 ... Speaker, 19 ... Communication modem, 20 ... Network Interface: 21 ... Hard disk, 22 ... BGV storage device, 23 ... Video generator, 24 ... Coaxial modulator / demodulator, 25 ... Monitor

Claims (11)

In a system comprising a plurality of automatic performance devices each having a sound source and communication means for connecting the automatic performance devices,
When playing a song with a first automatic performance device that is one of the plurality of automatic performance devices,
A performance data for playing a song is input to the sound source of the own device to generate a musical tone, and is another one of the plurality of automatic performance devices, and the second automatic performance device that is not playing the song at that time And the same data as the performance data input to the sound source of the first automatic performance device is transmitted to the second automatic performance device ,
In the second automatic performance device, the performance data received from the first automatic performance device is input to the sound source to generate a musical sound, and the generated musical sound is returned to the first automatic performance device,
A music automatic generation system for a network automatic performance system, wherein the first automatic performance apparatus mixes and outputs the musical sound generated by the sound source of the own apparatus and the musical sound returned from the second automatic performance apparatus. In a system comprising a plurality of automatic performance devices each having a sound source and communication means for connecting the automatic performance devices,
When playing a song with a first automatic performance device that is one of the plurality of automatic performance devices,
A performance data for playing a song is input to the sound source of the own device to generate a musical tone, and is another one of the plurality of automatic performance devices, and the second automatic performance device that is not playing the song at that time Transmitting performance data in which the pitch of performance data input to the sound source of the first automatic performance device is shifted by a predetermined value ,
In the second automatic performance device, the performance data received from the first automatic performance device is input to the sound source to generate a musical sound, and the generated musical sound is returned to the first automatic performance device,
A music automatic generation system for a network automatic performance system, wherein the first automatic performance apparatus mixes and outputs the musical sound generated by the sound source of the own apparatus and the musical sound returned from the second automatic performance apparatus. In a system comprising a plurality of automatic performance devices each having a sound source and communication means for connecting the automatic performance devices,
When playing a song with a first automatic performance device that is one of the plurality of automatic performance devices,
A performance data for playing a song is input to the sound source of the own device to generate a musical tone, and is another one of the plurality of automatic performance devices, and the second automatic performance device that is not playing the song at that time And transmitting performance data of a part different from the performance data input to the sound source of the first automatic performance device ,
In the second automatic performance device, the performance data received from the first automatic performance device is input to the sound source to generate a musical sound, and the generated musical sound is returned to the first automatic performance device,
A method for generating a musical sound of a network automatic performance system, wherein in the first automatic performance device, the musical sound generated by the sound source of the own device and the musical sound returned from the second automatic performance device are mixed and output. Transmission of performance data from the first automatic performance device to the second automatic performance device is performed via the LAN, and transmission of musical sounds from the second automatic performance device to the first automatic performance device is modulated. The method for generating a musical sound of the network automatic performance system according to any one of claims 1 to 3, wherein the musical sound is generated by an analog signal. The automatic performance device is a karaoke apparatus, the performance data is musical sound generating method of automatic network performance system according to any one of claims 1 to 4 which is music data for playing karaoke. Storage means for storing musical performance data;
Sound source means for generating musical sounds based on performance data;
Communication means for communicating with other automatic performance devices;
The performance means for inputting the performance data to the sound source means, transmitting a signal for detuning the sound source to another automatic performance device via the communication means, and transmitting the same performance data as the performance data input to the sound source means. When,
Mixing means for mixing the musical sound generated by the sound source means and the musical sound received from the other automatic performance device via the communication means and outputting from the speaker;
Automatic performance device with Storage means for storing musical performance data;
Sound source means for generating musical sounds based on performance data;
Communication means for communicating with other automatic performance devices;
Performance means for inputting the performance data to the sound source means and transmitting performance data in which the pitch of the performance data input to the sound source means is shifted by a predetermined value to another automatic performance device via the communication means;
Mixing means for mixing the musical sound generated by the sound source means and the musical sound received from the other automatic performance device via the communication means and outputting from the speaker;
Automatic performance device with Storage means for storing musical performance data;
Sound source means for generating musical sounds based on performance data;
Communication means for communicating with other automatic performance devices;
Performance means for inputting the performance data to the sound source means and transmitting performance data of a part different from the performance data input to the sound source means to another automatic performance device via the communication means;
Mixing means for mixing the musical sound generated by the sound source means and the musical sound received from the other automatic performance device via the communication means and outputting from the speaker;
Automatic performance device with 9. The automatic performance according to claim 6 , wherein the communication means transmits performance data to another automatic performance device via a LAN, and receives a musical sound from the other automatic performance device with a modulated analog signal. apparatus. Storage means for storing musical performance data;
Sound source means for generating musical sounds based on performance data;
Communication means for communicating with other automatic performance devices;
The performance data is input to the sound source means to play a song, and when the song is not being played, performance data is received from another automatic performance device via the communication means and input to the sound source means. when a control means for detuning said sound source means, returns a tone to the sound source means is generated to the other automatic performance apparatus,
Automatic performance device with 11. The automatic performance device according to claim 10 , wherein the communication means receives performance data from another automatic performance device via a LAN, and transmits a musical sound to the other automatic performance device with a modulated analog signal.

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