JP3599624B2 - Electronic percussion equipment for karaoke equipment - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic percussion instrument used by connecting to a karaoke apparatus, and more particularly to an automatic performance control technique.
[0002]
[Prior art]
Shops with karaoke equipment are equipped with small percussion instruments such as tambourines, maracas, castanets and bongo that can be easily played. Has been done. In accordance with such use, the present inventors have recently developed an electronic percussion instrument device to be used by connecting to a MIDI communication karaoke device.
[0003]
The basic function of this electronic percussion instrument apparatus is the same as that of a general one. Signal generating means. The percussion detection means has a plurality of percussion pads associated with different percussion sounds of the acoustic signal generation means, and generates percussion sounds such as tambourine, maracas, castanets, bongos and drum sets.
[0004]
A karaoke device of the MIDI system outputs a rhythm signal (one of the MIDI data) of the karaoke accompaniment music being played. The rhythm signal is introduced into an electronic percussion instrument device, and an automatic performance using percussion sounds such as tambourine, maracas, castanets, bongos and drum sets is performed in synchronization with the rhythm signal. As a result, even a person with rhythm dysphoria feels like playing a percussion instrument that exactly matches the karaoke accompaniment music.
[0005]
[Problems to be solved by the invention]
However, even when the accompaniment music has the same rhythm, the music tone is completely different between when the music is rock and when it is performed. Even with the same music, the tune greatly changes over time depending on the configuration. In the automatic performance of the previously developed electronic percussion instrument, even if the performance can be synchronized with the rhythm of the accompaniment music, the performance pattern must be selected by the player. Therefore, a person who has never performed a percussion instrument cannot respond to the change of the musical tone, and for example, sounds a loud percussion instrument sound with a phrase to be sung moistly. This can make both the singer and the listener unpleasant, and can even ruin the atmosphere.
[0006]
SUMMARY OF THE INVENTION An object of the present invention is to provide an electronic percussion instrument for a karaoke apparatus configured so that automatic performance can be performed in response to a change in the musical tone of a musical piece, so that even a user who is not familiar with the music can enjoy the music greatly. Is to provide.
[0007]
[Means for Solving the Problems]
In order to achieve this object, the present invention relates to a hit detecting means for detecting a hitting operation by a player, and an acoustic signal generating means for generating an appropriate percussion sound signal in response to a hitting signal from the hit detecting means. An electronic percussion instrument device comprising:
Rhythm receiving means for receiving a rhythm signal for the music played by the karaoke device; rhythm-type analyzing means for analyzing the rhythmic structure of the rhythm signal received from the rhythm signal to identify the rhythm type; Performance section data receiving means for sequentially receiving performance section data such as attribute sections and music section sections of the music to be played; and performance pattern data of rhythmic rhythms corresponding to the rhythm types and the performance section data, respectively. Driving the acoustic signal generating means according to performance pattern data corresponding to the rhythm type identified by the rhythm type analysis means and the performance division data received by the performance division data receiving means. Karaoke equipped with automatic performance control means for outputting an acoustic signal of a percussion instrument having a rhythmic rhythm And an electronic percussion device 置用.
[0008]
Also preferably, the percussion detection means has a plurality of percussion pads associated with different percussion sounds of the sound signal generation means, and an operation input for instructing execution of the automatic performance and a continuous pressing operation of the percussion pad. The automatic performance is performed by the percussion instrument sound assigned to the percussion pad.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
=== Basic configuration and basic operation ===
FIG. 1 is an external view of an electronic percussion device for a karaoke device according to an embodiment of the present invention, and FIG. 2 is a block diagram thereof. The apparatus 1 is configured to execute various processes under the control of a microcomputer including a CPU 11, a ROM 12, and a RAM 13. The CPU 11 controls the operation of the entire device 1. The ROM 12 stores various programs executed by the CPU 11 and various data related to performances. The RAM 13 temporarily stores various data generated when the CPU 11 executes a program. The components of the microcomputer are connected via a data bus 14.
[0010]
A hit detection unit 15 is connected to the CPU 11 via a data bus 14, and a hit pad group 16 including four hit pads 16a to 16d is connected to the hit detection unit 15. When the player selects an appropriate mode with the mode selection button 17a of the user interface unit 17 also connected to the bus 14, the batting detection unit 15 enters a state of waiting for the player to perform a batting operation (manual playing mode). Become. In this state, when the player performs a striking operation on the striking pad 16a, for example, the striking detector 15 generates a striking signal corresponding to the striking pad 16a.
[0011]
When the CPU 11 detects the striking signal via the data bus 14, the CPU 11 reads predetermined performance data corresponding to the striking pad 16a from the ROM 12, and drives the acoustic signal generator 18 in accordance with the read performance data. By doing so, an acoustic signal of the percussion instrument assigned to the percussion pad 16a is generated. This sound signal is sent to the mixing amplifier of the karaoke apparatus 2 and sound output. The player can freely adjust the volume of the blow sound by using the volume adjustment button 17b of the user interface unit 17. Further, the beat mark display section 17c of the user interface section 17 is configured to shine in accordance with the player's hitting operation. The above is the manual performance.
[0012]
=== Identification of rhythm type ===
The electronic percussion instrument device 1 can perform an automatic performance in accordance with a rhythm signal output from the MIDI communication karaoke device 2. For this purpose, the electronic percussion instrument apparatus 1 includes a rhythm signal receiving section 19 for receiving the rhythm signal. The rhythm signal receiving section 19 is connected to the CPU 11 via the data bus 14. The processing performed by the CPU 11 for this automatic performance will be described with reference to the flowchart shown in FIG.
[0013]
First, the CPU 11 checks whether or not a rhythm signal is input in the rhythm signal receiving section 19 (31). The karaoke apparatus 2 plays karaoke accompaniment music converted into MIDI data, and outputs a meta event signal appropriately assigned to the MIDI music data as the rhythm signal.
[0014]
If the rhythm signal has been input, the CPU 11 converts the rhythm signal into time-series data (32). Specifically, combinations such as “strong”, “medium strong”, and “weak” included in the rhythm signal are recorded in the RAM 13 in the order in which they are detected, together with the detection time. The discrimination of the strength is performed, for example, by monitoring the change over time of the rhythm signal.
[0015]
Next, a beat structure is extracted from the time-series data recorded in the RAM 13 (33). Specifically, the rhythmic structure is specified by extracting the minimum unit of repetition based on the arrangement order such as “strong”, “medium strong”, “weak”, and the transition of the detection time interval Δt (tempo). The rhythmic structure separates temporal flow by periodic repetition of accents, and its minimum unit is one bar.
[0016]
Next, a rhythm type is identified from the rhythmic structure (34). Specifically, the CPU 11 executes a predetermined program and selects one rhythm type closest to the target rhythm structure from a plurality of rhythm types prepared in the ROM 12. A rhythmic rhythm is uniquely defined by this rhythm type. A plurality of rhythm types are prepared for each music genre, such as "enka", "rock", and "rap". Furthermore, a plurality of the same enka songs are prepared for each tempo division, for example, "tempo 50 or less", "tempo 51 to 100", "tempo 101 to 150".
[0017]
=== Receive performance data ===
Next, it is checked in the performance division data receiving section 110 whether or not performance division data has been input (35). The performance division data is attached to the MIDI music data stored in the karaoke apparatus 2 in advance, and is associated with the timing definition data starting from the start of the performance and corresponding to “prelude”, “chorus”, “interlude”. Attribute division data that categorizes songs by attributes such as "" and "rearse", and tune classification data that divides songs by tune such as "Normal", "Rust", and "Climax" by being associated with the timing specification data. It is composed of
[0018]
If the performance division data has been input, the CPU 11 separately records the attribute division and the tune division of the music currently being played from the performance division data in the RAM 13 (36).
At this time, if the attribute section is not included, it is recorded as "chorus", and if it does not contain the tune section data, it is recorded as "normal".
The CPU 11 repeatedly executes the processing of steps 32 to 36 even before the player inputs an operation for executing an automatic performance. Thus, the latest rhythm type, tempo, attribute, and melody classification are always stored in the RAM 13.
[0019]
=== Execution of automatic performance ===
When the player inputs an operation command for executing an automatic performance, the CPU 11 selects a plurality of performance pattern data stored in the ROM 12 corresponding to the rhythm type identified in step 34 and in step 36. Performance pattern data corresponding to the acquired attribute / tune division is read out in synchronization with the rhythm signal (37).
[0020]
For example, when the rhythm type recorded in the RAM 13 at this point is “Enka 2”, a plurality of performance section IDs as shown in FIG. 4 are candidates. When the attribute division and the melody division recorded in the RAM 13 are "rearrangement" and "climax", respectively, the performance division ID "rear-k" is read from FIG. 4 and shown in FIG. From such a plurality of performance pattern data, a standby state is established so that four performance pattern data (corresponding to the four impact pads 16a to 16d, respectively) corresponding to the "back" can be read at any time. Here, for example, when the player performs a striking operation on the striking pad 16c, the performance pattern data of "(enka 2) after -c-c" is read from the ROM 12 in synchronization with the rhythm signal. If no rhythm signal is input at this time, the performance pattern data is read out at the tempo of the immediately preceding rhythm signal recorded in the RAM 13.
[0021]
At the same time, the CPU 11 drives the acoustic signal generator 18 in accordance with the read performance pattern data, and generates an appropriate percussion instrument acoustic signal. This sound signal is sent to the mixing amplifier of the karaoke apparatus 2 and sound output.
For example, when the read performance pattern data is the above-mentioned “(enka 2) after-c-c”, the tune (fade-out) with the rhythmic rhythm specified by “enka 2” and suitable for “the climax of the after-play” Processing, etc.), the performance of the "cowbell" is started.
[0022]
In the performance section of "chorus", the volume of the percussion instrument sound is controlled or set so as to be reduced, so that the percussion instrument sound is not too loud and does not disturb the singing.
Similarly to the above-mentioned manual performance, the volume of the percussion instrument sound can be freely adjusted by the volume adjustment button 17b, and the beat mark display section 17c illuminates according to the tempo of the automatic performance.
[0023]
=== Switching playing mode ===
In this embodiment, switching from manual performance to automatic performance and automatic performance to manual performance can be performed very easily. That is, when the break pad 17d in the user interface unit 17 and any one of the four hit pads 16a to 16d are continuously pressed simultaneously, the automatic performance is performed with the percussion instrument sound assigned to the hit pad. Is started (automatic play mode). When the continuous pressing operation of the break pad 17d or the striking pad is stopped, the automatic performance is ended and the mode is changed to the manual performance mode. As a result, continuous switching such as manual → auto → manual → auto can be smoothly performed, so that it is possible to perform a rhythmic performance that is sharp according to various songs and the surrounding atmosphere.
[0024]
=== Continuation processing of automatic performance ===
The electronic percussion instrument apparatus 1 continues automatic performance even if the rhythm signal being received by the rhythm signal receiving unit 19 or the performance division data being received by the performance division data receiving unit 110 is interrupted during automatic performance. can do. Specifically, as shown in the flowchart of FIG. 3, when it is determined in step 31 that the rhythm signal has not been input, the processing of steps 32 to 34 is omitted and the processing proceeds to the next processing. When it is determined in step 35 that the performance division data has not been input, the processing in step 36 is omitted, and the processing proceeds to step 37. By repeating this, information immediately before the signal (data) is interrupted is recorded in the RAM 13, and the automatic performance is continued based on the information immediately before.
[0025]
Even when the automatic performance is not performed, if the operation input of the automatic performance execution command is input within a predetermined time after the rhythm signal or the performance division data is interrupted, the automatic performance is performed in the same procedure as described above. Be started. Thereby, for example, when someone finishes singing at karaoke, the listener can shout and the automatic performance can be started even in a situation where the atmosphere is maintained, and the lingering sound can be enjoyed.
[0026]
=== Others ===
When the rhythm signal is composed of timing definition data starting from the start of performance and identification data of "only strong beats and weak beats", the rhythm type and tempo can be identified with the following simple configuration. . That is, when a strong beat signal is received, a timer for timing is started, and a time Δt until a next signal is received is measured. If the received signal is a weak beat signal, the time measurement result Δt is recorded in the first frame. I do. Further, if the time measurement is continued and the next signal is the weak night signal, the Δt is recorded in the second frame. This is repeated until a strong beat signal is received. When a strong beat signal is received, after recording Δt in a predetermined frame, 0 (return mark) is recorded in the next frame, and the process returns to the time measurement of Δt in the first frame. If this is repeated, when the rhythm signal is interrupted, the record just before that will remain. The automatic performance is executed at a tempo based on Δt recorded in the frame.
[0027]
【The invention's effect】
The electronic percussion device for a karaoke device according to the present invention is configured so that the music played by the karaoke device can be automatically performed in a performance pattern corresponding to the rhythm type and the performance division. Lowering the sound so that it does not disturb the singer, or raising the volume in sections where rust, climax, etc., are exaggerated. is there. This allows users who are not familiar with music to participate in karaoke without losing the atmosphere of the place.
[0028]
In addition, it has a plurality of striking pads associated with different percussion sounds, and striking any one of the striking pads outputs a striking sound assigned to the striking pad. It is possible to play percussion instruments. In addition, the automatic performance is started by the percussion sound assigned to the percussion pad simply by inputting an operation command to execute the automatic performance while continuously pressing any of the percussion pads. Switching to performance can be performed smoothly. As a result, it is possible to perform a sharp rhythm performance in accordance with various songs and the surrounding atmosphere.
[Brief description of the drawings]
FIG. 1 is an external view of an electronic percussion instrument apparatus for a karaoke apparatus according to an embodiment of the present invention.
FIG. 2 is a block diagram of the electronic percussion instrument of the above.
FIG. 3 is a flowchart relating to automatic performance of the electronic percussion instrument of the above.
FIG. 4 is a diagram for explaining a performance division ID for each rhythm type according to an embodiment of the present invention.
FIG. 5 is a diagram for explaining the relationship between performance section IDs and performance pattern data according to an embodiment of the present invention.
[Explanation of symbols]
1 Electronic percussion instrument device 11 CPU
12 ROM
13 RAM
18 Acoustic signal generator 19 Rhythm signal receiver 110 Performance data receiver 2 Karaoke device

Claims (1)

An electronic percussion instrument device comprising: a percussion detecting means for detecting a percussion operation by a player; and an acoustic signal generating means for generating an appropriate percussion sound signal in response to a percussion signal from the percussion detection means,
Rhythm receiving means for receiving a rhythm signal for the music played by the karaoke device; rhythm-type analyzing means for analyzing the rhythmic structure of the rhythm signal received from the rhythm signal to identify the rhythm type; Performance section data receiving means for sequentially receiving performance section data such as attribute sections and music section sections of the music to be played; and performance pattern data of rhythmic rhythms corresponding to the rhythm types and the performance section data, respectively. Driving the acoustic signal generating means according to performance pattern data corresponding to the rhythm type identified by the rhythm type analysis means and the performance division data received by the performance division data receiving means. And automatic performance control means for outputting an acoustic signal of a percussion instrument having a rhythmic rhythm. Electronic percussion device for a karaoke machine to be.

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