JPS6083090A - Musical transmission system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a music transmission system that allows music to be instantly enjoyed at four desired locations by transmitting musical tone generation data using a data transmission line such as a telephone line.

Karaoke is becoming more and more popular these days, but conventional karaoke machines use cassette tapes or cartridge tapes on which the accompaniment is pre-recorded. The accompaniment performance is performed by performing amplification and other processing and playing back. Therefore, if you want to play accompaniment to a piece of music that you do not have on hand, you must purchase a recording tape of that piece at a store. We also use karaoke equipment for commercial use@-
If you are in a restaurant, you need to keep as many platters of tape in stock as possible so that you can fulfill customer orders. but,
Recorded tapes cannot be purchased anytime and anywhere, and for commercial purposes it is sometimes difficult to have a variety of songs available in all genres, from the old to the latest. In particular, there are many people who want to sing a hit new song even before the karaoke tape is released, so they are waiting for someone to tape the tape as soon as possible.

Therefore, one idea is to set up a music data bank containing the performance data of all kinds of songs, and then transmit the performance of the desired song as an audio signal to the desired person over a telephone line. Since the audio bandwidth of the telephone line is approximately 300 H2 to 3000 H, it is not suitable for transmitting musical tones that require an audio bandwidth of 40 H2 to 15000 H or more. Another method is to convert the performance data into digital data using PCM, transmit it through a telephone line, and convert it into an audio signal using a modem etc. on the receiving side.This method has very excellent characteristics. You can play the accompaniment. However, with this method, the baud rate of the telephone line is 240.
For example, a song with a playing time of 5 minutes can be played using 14-bit PCM with a bandwidth of up to 15,000 H2.
To transmit as 15000 x 2 x 14
X 300 The system proposes a system that uses data transmission lines such as telephone lines to transmit not only the musical tone signal itself, but also data related to notes such as pitch, note length, note length, and strength, timbre, vibrato, and sound. Data such as control data such as localization of the music, in other words, zones for generating musical tones, are transmitted, and the receiving side generates musical tones based on the data. According to the transmission method of the present invention, the amount of performance data for a song with a playing time of about 5 minutes will be 8 to 30 bytes, and if this data is transmitted using a 2400 baud telephone line, it will be 30 to 100 bytes.
It is now possible to transmit data in seconds, which is within the range of practical transmission times.

The present invention will be explained below based on the drawings.

FIG. 1 is a schematic diagram of a music transmission system according to the present invention,
1 is a data bank that stores the performance data of all songs and transmits it when requested from outside; 2 is the telephone line of the data transmission angle; and 3 is the system that generates musical tones based on the performance data transmitted through the telephone port FI12. The performance station where this occurs is thought to be a private home or a store with a commercial karaoke machine installed. Data bank 1#-i Large-capacity memory 1a that stores performance data for many songs, and memory 1a
It is comprised of a data processing circuit 1b that converts data stored in the data into signals convenient for transmission, and a control circuit 10 that manually specifies the platinum to be transmitted and issues transmission start commands. Also, the performance station 3 is connected to the telephone line 2.
an acoustic coupler 3a connected to the data bank 1, a memo IJ 3b that stores the performance data transmitted from the data bank 1, a musical sound generation circuit 3c that generates a musical sound signal based on the performance data, and a data bank that instructs the performance. It is comprised of a control circuit 3d that requests data transmission from the FM 1, a speaker 3e that generates sound based on musical tone signals, and the like.

FIG. 2 shows an example of a karaoke device installed in a performance station.The top surface of a box 31 is provided with an acoustic coupler 32 on which a telephone handset 4 is placed, and the front surface is used for selecting a song title, starting a performance, etc. An operation key 33 for issuing commands, a display device 34 for displaying the name of the selected song, its presence or absence, operation mode, etc., and a volume adjustment knob 35.
A speaker 36 is provided, and a data output terminal 37 is provided on the side surface when a dedicated data line is used for data transmission instead of using a telephone line.

FIG. 3 is a detailed Plutz diagram of the karaoke apparatus of the performance station. The performance data transmitted through the telephone line 2 is taken into the apparatus from an acoustic coupler 10 provided in the box of the BDH karaoke apparatus, and is converted into serial digital data by the modem 11. The performance data BD consists of control data for controlling the operation of the karaoke machine, data such as pitch, strength, tone length, etc., and the control data includes data such as system initialization, transmission start and end, tone color, etc. .

This performance data is converted into parallel data by the communication port 12, and is converted into parallel data by the central processing unit (hereinafter referred to as 1).
-CPUj) 13, and one's own performance data is stored in the external memory 14. A song number is assigned to each song. As the external memory 14, a cassette chip, a floppy disk, a magnetic bubble, etc. are used. - When you input a performance command from the keyboard 15 after all your performance data has been transferred and written to the external memo 1Jj4, the central processing unit 13 reads out the performance data written to the external memory 14 according to the program, and generates a musical tone signal. Generation circuit 16. and rhythm generator 17
Give performance parameters to . For example, the parameters that determine the tone include harmonic content, waveform rise time (attack), decay time (decay), retention amount (sustain), and disappearance time (release), and these are controlled by the CPU 13.
The timbre control data is stored in advance in the memory (ROM) of the performance data, and is read out using the timbre control data included in the performance data. An amplifier 18 having an effect imparting function appropriately mixes the audio signal from the microphone 19, the musical tone signal from the musical tone signal generating circuit 16, and the rhythm musical tone signal from the rhythm generator 17, imparts an effect such as an echo effect, and generates a speaker. 20 generates performance sounds and singing voices.

This musical tone generation operation is the same as that of a synthesizer, so a description thereof will be omitted.

21ij is a display that displays performance song numbers, operating modes, etc., and 22 is a recording terminal for recording singing voices and performances on a tape recorder or the like.

Next, the performance procedure will be explained using FIGS. 4 and 5.

FIG. 4 shows a row of operation and display sections provided on the front of the karaoke machine, and the keyboard 15 includes a numeric keypad for specifying song numbers and other operation keys for specifying the song you want to play or the song you want to request data for. The operation keys are the start key "s", which is pressed when starting the performance operation, and the end key "CR", which is pressed when you have finished inputting the song number using the numeric keypad.
and press the cancel key #C if you specify the wrong song number.
＃-, the erase key 1 to press when deleting the performance data, ´, the key to press when requesting performance data by phone, ``Do-Place'', and the key to press when there is no request, ``N''.
It consists of o - position'.

The display 21 includes a display section 21a that displays the designated song number, a start lamp (5TART) that lights up when the start key "S#" is pressed, and a phone light that lights up when the designated song is not registered in the external memory 14. lamp(
Place'? ) and the no-area lamp (No.
5AVEAREA) and a transfer lamp (COM) that lights up while receiving data.

Next, the fifth step is to play the accompaniment of the song you want to sing and erase it.
This will be explained based on the flowchart shown in the figure. .

First, turn on the power switch and input the number of the song you want to sing next using the keyboard 15 (P-1).

When the song number has been entered manually, press the key CR (P-2).

Next, when the cancel key C is pressed (P-3), manually re-enter the song number (p-1), and if it is not pressed, then it is determined whether the erase key K is pressed ( P-4)
. As a result, if the erase key K is pressed, the external memory]4
Since a command to delete the performance data registered in the external memory 14 has been given manually, the performance data to be deleted is searched for in the external memory 14 (P-6). As a result, if there is performance data that you want to delete (P-7), delete it (P-8),
If not, go back to the first step.

If the erase key K is not pressed, then the start key S is pressed.
It is determined whether or not is pressed (P-5). If the start key S is pressed, you can request a search to see if the performance data for the next manually entered song number is registered in the external memory 14. If the performance data is registered in the external memory 14 (P- 10) The performance data is read from the external memory 14 into the CPU 13 (P-11), and the song number is displayed on the display 21 (P-12). Thereafter, the start lamp lights up (P-13'') and the inputted song is played (P14).

If the performance data of the desired song manually input from the keyboard 15 is not registered in the external memory 14 (P-10)
, Next, it is determined whether or not there is free memory in the external memory 14 (P-15).

As a result, if there is free memory, the phone lamp on the display is turned on (P-16) and the song number is displayed on the % display (P-17). Here you can decide whether or not to request the song from the data bank over the phone.P-1
8.P-19), If you do not request a call, turn off the telephone lamp.P-20) When requesting a call, press the key 'Do-Place'.As a result, the telephone lamp turns off and the transfer lamp (COM> lights up (P-21).

When the user makes a telephone call to the data bank (P-22) and places the handset on the acoustic coupler, performance data is transmitted from the data bank via the telephone line and is written to the external memory 14 (p-23).

When the data transmission is completed, the end signal is read and the transfer lamp (eOM) is turned off (p-24). Subsequently, the performance data written in the external memory 14 is read into the CPU 3 (P-25), and when the reading is completed, the start lamp lights up and the performance processing is performed (P-26).

Returning to step (P-1, 5), when it is determined that there is no free memory in the external memory 14, H (P-15);
The no-area lamp is turned on (P-28), the telephone lamp is turned on (P-29), and the song number is displayed on the display (P-30).

In this case, the performance can be performed by the following operation, but since the performance data is not stored in the external memory J4, the performance cannot be performed again after the -th performance is completed. The subsequent operations from steps (p-31) to (p-34) and the associated actions are already explained in steps (p-18) to (p-2).
The operations and operations up to 2) are the same, and step (P
-35), the performance data transmitted through the telephone line is directly written into the memory within the CPU 13. Thereafter, the operations in steps (P-35) to (p-3s) are the same as those in steps CP-24) to (P-27) described above, and in this case, the performance can be performed only once.

Since the performance based on the performance data is performed by adding an echo effect by the amplifier 18 to the musical tones generated from the rhythm generator 17 and the multi-channel music synthesizer, superior sound quality can be obtained compared to transmission by PCM.

Although the above embodiment is an example in which the performance data is transmitted using a telephone line, a dedicated data line such as optical fiber or wireless may be used to transmit the performance data. In that case, the apparatus shown in FIG. Performance data will be directly input to the communication board 12 of the player. Furthermore, if the external memory that stores performance data is replaceable, you can store it like a conventional cassette or record and enjoy playing your favorite songs whenever you like.

As explained above, in the present invention, a musical tone playing device having a means for generating a musical tone signal based on musical tone generation data is used, and a musical tone is generated using musical tone generation data transmitted from a data bank. When used in a karaoke device, the accompaniment of the song you want to sing can be played instantly and easily, so instead of purchasing a tape of the song as in the past, you can keep a large number of tapes on hand at all times so that you can respond to requests from many people. There is no need to worry about having to prepare anything.

Although the present invention is effective when used as a karaoke device,
If musical sound generation data of classical music, light music, and other wide genres are prepared in a data bank, it can be widely applied as a music performance method (for example, packed grand music) in place of conventional records and tapes.

[Brief explanation of drawings]

Figure 1 is a system diagram of the music transmission system according to the present invention, Figure 2 is a system diagram of the music transmission method according to the present invention.
The figure is an external perspective view of a music performance device used in the music transmission system according to the present invention, FIG. 3 is an electrical block diagram of one embodiment of the music performance device, and FIG. 4 is the arrangement of the operating section and display section of the same performance device. An example diagram, FIG. 5, is a 70-chart of operations for playing musical tones using the musical tone transmission system according to the present invention. 1...Data bank, la, 3b, 14...Memory, 1b...Data processing circuit, 1c, 3d...Control circuit, 2...Telephone line, 3...Performance station, 3a, 32...Acoustic coupler, 3c...Musical sound generation circuit, 3e+36...Speaker, 4...Handset, 10.32...Acoustic coupler, 11...Modem, 12... Communication port, ]3-...
CPU. 15... Keyboard, 16... Musical tone signal generation circuit,
17...Rhythm generator, 18...Amplifier, 19...
・Microphone, 20.36...Speaker, 21.3
4...Display, 21a...Display section, 22...
・Recording terminal, 3]...Box, 33...Operation key, 35...Adjustment volume, 37...Data input/output terminal Patent applicant Dai A Co., Ltd. - Attorney Hiroo Tsuchisuzuki

Claims (2)

[Claims] (1) A data bank that holds musical tone generation data and has data transmission means for transmitting the data to the outside; a data transmission line for transmitting musical tone generation data; and a data transmission line for transmitting musical tone generation data via the data transmission line. The person or means to do the work,
The data performance station is characterized by comprising a musical sound generation means for generating musical tones based on inputted musical sound generation data, and a control means for controlling the human input of the musical sound generation data and the generation of musical tones by the musical sound generation means. Music transmission method. (2) The music transmission system according to claim 1, wherein the data transmission line is a telephone line.