JP2961675B2 - Electronic musical instrument - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument, and is particularly suitable for use in simulating a stringed musical instrument.

[0002]

2. Description of the Related Art As is well known, recent electronic musical instruments are configured to simulate various musical instruments. For example, an electronic musical instrument has been put into practical use that can produce a sound produced when a string of a stringed instrument is played by pressing a keyboard. In such an electronic musical instrument, for example, when simulating the tone of a guitar with a keyboard instrument, a guitar sound having a pitch corresponding to a pressed key is sampled and reproduced.

[0003]

During actual performance of a guitar, when a finger pressing a player's string moves from fret to fret, the finger and the string rub against each other during the movement, causing a sliding movement called "squeeze". Sounds may be emitted.

In this case, in the case of a guitar, since six strings each have a unique frequency and tone, various strings of sliding sounds or harmonics, etc., corresponding to the moving state of the finger, are provided. A unique sound is emitted. Such a sliding sound or the like is a sound peculiar to a guitar, and can be an important factor when simulating a guitar sound. However, in a conventional electronic musical instrument, strings-specific sounds such as sliding sounds and harmonic sounds have not been considered at all.

In view of the above-mentioned problems, the present invention determines which of a plurality of strings provided in a stringed instrument is currently sounding when a key-off operation is performed. It is an object of the present invention to determine a key-off sound corresponding to the type of a string corresponding to the sound being generated and to generate a sound by making a determination based on the pitch and timbre of the sound being performed.

[0006]

An electronic musical instrument according to the present invention is constructed so as to be able to simulate the performance of a stringed instrument by pressing a keyboard, and is turned on when the keyboard is turned on. At the time of key-off, a plurality of currently sounding sounds are generated by the stringed musical instrument based on the pitch and timbre of the currently sounding sound at the time of key-off. Sounding string discriminating means for discriminating which of the provided strings the sound is to be sounded to identify a predetermined string, and string specific sound data corresponding to the sound simulating the performance. A string-specific sound data storage means for storing, a key-off detection means for detecting a key-off operation of the currently sounded sound and outputting a key-off detection signal, and a key-off detection means. When the off operation is detected, the string specific sound data storage means is controlled based on the sounding string identification signal output from the sounding string discriminating means to correspond to the sound that was sounded until the key-off was performed. String sound generating means for reading string specific sound data, and generating a string-specific tone signal corresponding to the sound generated at the time of key-off based on the string specific sound data. Features. Another characteristic of the electronic musical instrument of the present invention is that the tone signal unique to the string is a sliding sound generated when a finger and a string rub against each other during performance of the stringed instrument.

[0007]

Since the present invention has the above-mentioned technical means, the sound has been generated up to that time based on the key data sent by operating the keyboard and the sounding string specifying signal output from the sounding string discriminating means. Generate a unique tone signal for the string,
By generating a tone at key-off in response to the player's request, a string-specific tone signal is generated in consideration of differences in timbre, etc., at a portion where there is a scale that can be pronounced across multiple strings, and a stringed instrument is simulated. Therefore, it is possible to simulate a stringed instrument in the same playing state as when playing an actual stringed instrument.

[0008]

1 and 2 are block diagrams of an electronic musical instrument showing an embodiment of the present invention. FIG. 1 is a block diagram of a main part, and FIG. 2 is a block diagram showing an entire configuration. In FIG. 1, reference numeral 1 denotes a sounding string discriminating means, 2 denotes a key-off detecting means, 3
Is a string unique sound data storage means, 4 is a string unique sound generating means, 2
Reference numeral 3 denotes a D / A converter, 24 denotes an amplifier, and 25 denotes a speaker.

The sounding string discriminating means 1 is provided for discriminating which of the six strings provided on the guitar is the sound currently being sounded. It is. The chord discrimination is performed based on the pitch and tone of the sound that is currently sound, string unique After identifying pronunciation strings
Outputting pronunciation string specific signals S ₁ to the sound pronunciation means 4.

[0010] The chord-specific tone generating means 4, the key-off detection signal S ₂ are made to be supplied from the key-off detecting means 2 when the key-off. String specific tone generating means 4 generates a storage means control signal S ₃ controls the string proper tone data storage means 3 at the time of key-off based on these sound string specified signal S ₁ and key-off detection signal S _2, it is key-off read the unique sound data S ₄ of the string corresponding to the sound that had been pronounced up to that.

Then, the read string specific sound data S
₄ on the basis, for generating a tone signal S ₅ of the sound such as strings unique sliding sound corresponding to the sound that was pronounced at key-off. The tone signal S ₅ is, for example, when the fingers pressing the strings to move the frets from fret when playing the guitar may be a sliding sound of fingers and the strings and is pronounced rubbing "Kyu" Also, a harmonic sound may be used.

[0012] tone signal S ₅ generated by the string-specific tone generating means 4 is output to the D / A conversion circuit 23 is converted into a tone signal S ₆ of the analog, the speaker 2 through the amplifier 24
5 given. As a result, a string-specific sliding sound or the like corresponding to the sound being emitted at the time of key-off is emitted from the speaker 25, and it is possible to simulate the stringed instrument in a state close to the state where the stringed instrument is actually being played. become able to.

The electronic musical instrument of this embodiment having the above functions has a CPU 21 and a ROM 20 in which circuit parts such as a sounding string discriminating means 1, a key-off detecting means 2, and a string specific sound sounding means 4 are connected by a bus 18. , A RAM 19 and the like.

The CPU 21 detects operation information of the keyboard 11 from the key switch circuit 15 connected to the keyboard 11 and detects operation information of panel switches from the panel switch circuit 16 connected to the operation panel 12. Then, note information corresponding to the keyboard operation, parameter information such as rhythm and timbre corresponding to the operation of the panel switch, and the like are transmitted to the tone generation circuit 22. The switch 13 provided on the operation panel 12 is a switch for instructing on / off of a process for generating a string specific sound such as a sliding sound shown in FIG.

The tone generating circuit 22 reads out the PCM sound source data from the ROM 20 based on the information, processes the amplitude and envelope, and outputs the processed data to the D / A converter 23. A tone signal obtained from the D / A converter 23 is supplied to a speaker 25 via an amplifier 24, whereby a predetermined tone is generated. Note that program data, automatic accompaniment (performance) data, and the like are written in the ROM 20, and these data are read out during operation to perform operation control, sound generation control, and the like.

In the electronic musical instrument configured as described above, when the simulation operation of the guitar sound is started as shown in the flowchart of FIG. 3, first, in step 50, initialization is performed, and in step 51, the keyboard 11 is initialized. Operation to operation
Perform crop detection . If the result of this detection is a key-on event, the process proceeds from step 52 to step 5 of the on-event process.
Proceed to 3 to generate a guitar sound having a pitch corresponding to the turned-on key.

At this time, if there are a plurality of strings on the guitar that can generate a sound at the pitch specified by the key operation, the performance position and the used string information specified by the user's operation of the panel switch are used. The string is automatically selected, and a tone having a tone corresponding to the selected string is emitted.

If the event is not an on event, the process proceeds from step 52 to step 54. If the event is an off event, the process proceeds to off event processing in step 55 to mute the corresponding sound. If it is not an off event, step 5
In step 6, a panel operation detection process is performed.
To perform an automatic performance process (reproduction process) of a musical tone, and loop to step 51.

FIG. 4 is a flowchart showing a string-specific sounding operation performed in the off-event processing in step 55 of FIG. That is, as described above, at the time of the off event, in step 60, the sound that has been generated until then is determined. Then, the string corresponding to the determined sound is determined in step 61, and the unique data corresponding to the determined string is read from the storage unit 3. Next, in step 63, sound generation processing is performed, and a sliding sound, a harmonic sound, and the like are generated based on the read unique data.

[0020]

According to the present invention, as described above, according to the present invention, based on the key data sent by operating the keyboard and the sounding string specifying signal output from the sounding string discriminating means. Since a unique tone signal of the previously pronounced string is generated and is generated at the time of key-off according to the player's request, even in a portion where the scale that can be pronounced exists over a plurality of strings, It is possible to simulate a string-specific tone signal by taking into account the differences in timbres, etc. Can be simulated.

[Brief description of the drawings]

FIG. 1 is a functional configuration diagram illustrating a main part of an electronic musical instrument according to an embodiment.

FIG. 2 is a configuration diagram illustrating an overall configuration of the electronic musical instrument.

FIG. 3 is a flowchart illustrating an overall operation of the electronic musical instrument.

FIG. 4 is a flowchart showing an operation at the time of an off event.

[Explanation of symbols]

1 sounding string discriminating means 2 key-off detecting means 3 string-specific data storing means 4 string-specific sound generating means S ₁ sounding string specifying signal S ₂ key-off detecting signal S ₃ storage means control signal S ₄ natural sound data S ₅ musical tone signal S ₆ analog Music signal

Claims (2)

(57) [Claims] An electronic musical instrument configured to simulate a performance by a stringed instrument by pressing a keyboard, wherein when a key of the keyboard is turned on, a string having a pitch corresponding to an operation of a key turned on is provided. At the time of key-off, based on the pitch and timbre of the currently sounding sound, the currently sounding sound is generated by any of a plurality of strings provided in the stringed instrument. Sounding string discriminating means for discriminating a predetermined string by discriminating a sound to be pronounced, and string peculiar sound data storage for storing string peculiar sound data corresponding to the sound simulating the performance Means, a key-off detection means for detecting a key-off operation of the currently sounded sound and outputting a key-off detection signal, and a key-off operation when the key-off operation is detected by the key-off detection means. The string specific sound data storage means is controlled based on the sounding string identification signal output from the sounding string discriminating means to read out the string specific sound data corresponding to the sound being sounded until the key-off is performed. An electronic musical instrument comprising: a string-specific sound generating means for generating a string-specific tone signal corresponding to a sound generated at the time of key-off, based on the string-specific sound data. 2. The electronic musical instrument according to claim 1, wherein the string-specific tone signal is a sliding sound generated when a finger and a string rub against each other when a stringed musical instrument is played.