CN114299902A - Electronic musical instrument and control method thereof - Google Patents
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Abstract
The invention provides an electronic musical instrument, which comprises a body, a neck and strings and can be connected to playing equipment, and further comprises a string signal collector and a control processor. The string signal collector is used for collecting string vibration signals representing whether the strings are stirred or not from each string and converting the collected string vibration signals into electric signals. The control processor includes a first storage module and a control module. In the chord mode, the control module determines a chord corresponding to a chord bar to be played next based on the read music score. The invention also provides a control method of the electronic musical instrument. The electronic musical instrument of the invention reduces the playing difficulty and liberates the left hand of the user.
Description
Technical Field
The present invention relates to musical instruments, and more particularly, to electronic musical instruments.
Background
Prior art electronic musical instruments, such as guitars or ukraini, require a variety of fingering to be remembered during playing, which can be accomplished with a long period of practice. The existing electronic musical instruments are difficult for beginners who want to play a complete tune as soon as possible.
Disclosure of Invention
In order to reduce the playing difficulty of beginners, the invention provides the electronic musical instrument, which can play the designated song under the condition of freeing the left hand of a user by arranging the string signal collector, the control processor and the string switching controller on the basis of the existing electronic musical instrument, thereby greatly reducing the using difficulty.
The invention provides an electronic musical instrument, which comprises a body, a neck and strings, and is connected or can be operatively connected to playing equipment. Wherein the string signal collector is designed to collect the string vibration signal representing whether the string is plucked or not from each string and convert the collected string vibration signal into an electric signal. The control processor comprises a first storage module and a control module, the first storage module is designed to store note data formed by sounds emitted when different strings are shifted under different chords, the control module is designed to receive electric signals from the string signal collector and can be in communication connection with an external mobile communication device to read a music score stored in the external mobile communication device, and the control module is further designed to be in communication connection with the playing equipment to send an instruction of playing the notes to the playing equipment. The music score comprises a chord bar played with a chord, the electronic musical instrument is in a chord mode when the chord bar is played, and in the chord mode, the control module is designed to determine a chord corresponding to the chord bar to be played next based on the read music score and further to call the corresponding note from the first storage module based on the electric signal received from the string signal collector.
Preferably, the electronic musical instrument further comprises a chord switching controller communicatively connected to the control module to send a chord switching instruction to the control module after triggering, and in the chord mode, the control module is designed to determine a chord corresponding to a chord bar to be played next based on the read musical score and whether the chord switching instruction is received. The control module further calls corresponding notes from the first storage module based on the electric signals received from the string signal collector.
Preferably, the musical score further comprises at least one accompaniment measure arranged in a prescribed sequence from a plurality of note data, wherein the electronic musical instrument is in an accompaniment mode while the accompaniment measure is played, the control processor further comprises a second storage module designed to be communicatively connectable to the external mobile communication device to receive and store in sequence all of the note data of the accompaniment measure from the external mobile communication device, and in the accompaniment mode, the control module is further designed to sequentially recall one note data of the corresponding accompaniment measure from the second storage module upon receiving an electrical signal from the string signal collector until all of the note data of the corresponding accompaniment measure stored is sequentially recalled.
Preferably, the control module is further designed to cause the electronic musical instrument to switch from the chord mode to the accompaniment mode upon receiving a switch instruction issued by the chord switching controller when the accompaniment measure is read from the musical score after the currently played chord measure is read.
Preferably, the control module is further designed to, when a chord bar is read from the music score after the currently played accompaniment bar is read, automatically enter the electronic musical instrument into a chord mode after all the note data of the corresponding accompaniment bar stored in the second storage module are sequentially called.
Preferably, the string signal collector is designed to collect vibration amplitude values of plucked strings and convert the vibration amplitude values into electric signals, and the control module is also designed to determine the instruction about volume to the playing device according to the received electric signals representing the vibration amplitude values of the corresponding strings.
Preferably, the control module is designed to set a set vibration amplitude value corresponding to a specified volume for the string, and when the actual vibration amplitude value of the string is smaller than the set vibration amplitude value, the control module sends an instruction for playing the specified volume to the playing device; when the actual vibration amplitude value of the string is larger than the set vibration amplitude value, the control module firstly determines the multiple of the vibration amplitude value of the string compared with the set vibration amplitude value and then sends a command of playing the sound volume with the corresponding multiple of the specified sound volume to the playing device.
Preferably, the control processor further comprises a third memory module designed to store different timbre data and communicatively connected to the external mobile communication device, the control module being designed to retrieve timbre data from the third memory module and combine the retrieved timbre data with the note data retrieved from the first memory module or the second memory module to obtain the target music set when an instruction to play the electronic musical instrument at a specified timbre is received from the external mobile communication device.
Preferably, a sound hole pickup is further provided on the body, the sound hole pickup is directly connected to the playing device, and the sound hole pickup and the string signal collector are alternatively used.
Preferably, the playing device is a loudspeaker or an earphone, the external mobile communication device is a smart phone or a computer, and the external mobile communication device is in communication connection with the control module and the second storage module by means of bluetooth and/or a wireless network.
The invention also provides a control method of the electronic musical instrument, when the music score only comprises chord sections, the method comprises the following steps:
(1) the control module determines the chord corresponding to the chord bar to be played next based on the read music score and whether the chord switching instruction sent by the chord switching controller is received;
(2) the control module calls corresponding notes from the first storage module based on the electric signals received from the string signal collector;
(3) the control module sends the note data to the playing equipment;
(4) the control module determines whether to enter a next chord based on whether a next chord switching instruction is received.
Further, when the music score further comprises an accompaniment measure and the accompaniment measure is positioned before the chord measure, the method further comprises the following steps:
(1) the control module determines a current accompaniment measure based on the read music score;
(2) the control module receives an electric signal from the string signal collector and then sequentially calls note data of corresponding accompaniment measures from the second storage module in sequence;
(3) the control module sends the note data to the playing equipment;
(4) after all the note data of the stored corresponding accompaniment measures are sequentially retrieved from the second storage module, the electronic musical instrument automatically enters a chord mode.
Further, when the chord bar is located before the accompaniment bar, the electronic musical instrument switches from the chord mode to the accompaniment mode upon receiving the switching instruction issued by the chord switching controller.
Drawings
Embodiments of the apparatus and methods of the present invention are described in further detail with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of an electronic musical instrument according to the present invention.
Fig. 2 is a schematic view of a method of using an electronic musical instrument according to the present invention.
Fig. 3 is a schematic view of the structure of an electronic musical instrument according to the present invention.
List of reference numerals
1. A string signal collector; 2. a control processor; 21. a control module; 22. a first storage module; a second storage module; 24. a third storage module; 3. and a string switching controller; 4. an external mobile communication device; 5. a sound hole pickup; 6. and a playing device.
Detailed Description
Referring now to the drawings, illustrative aspects of the disclosed structure will be described in detail. Although the drawings are provided to present some embodiments of the invention, the drawings are not necessarily to scale of particular embodiments, and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain the present disclosure.
An electric guitar is described herein as an example. An electric guitar of the prior art generally comprises a body, a neck and strings (generally comprising 6 strings, hereinafter described as an example of 6 strings), wherein the neck is held by the user's left hand palm, the left hand finger is switched between different formats to press the strings, and the right hand plucks the strings located above the body to vibrate the corresponding strings. The sound hole pickup can collect vibration signals corresponding to strings and convert the vibration signals into electric signals to be transmitted to the playing equipment.
In playing an electric guitar, the player will typically sing with the melody under some music pieces, which are referred to herein as chord bars in the music score, and in order to achieve a perfect match of the notes and the singing voice, the player should be able to freely control the notes and the tempo of the playing while playing these music pieces in the music score, which is in a chord mode when playing the chord bars. There are also some music pieces in the score that play only an accompaniment role, such as prelude, interlude and tail, and these music pieces do not need to cooperate with the singing voice, and these music pieces are referred to herein as accompaniment measures in the score, and when the accompaniment measures are played, the electric guitar is in an accompaniment mode. In order to further reduce the playing difficulty of the electric guitar, the working principles of the chord mode and the accompaniment mode are different in this document. These two modes of operation will be described in detail below.
Referring to fig. 3, the electric guitar of the present invention further includes a string signal collector 1, a control processor 2 and a string switching controller 3 on the basis of the electric guitar of the prior art. Wherein the chord switching controller 3 is preferably provided on the neck to facilitate left-hand triggering, and the string signal collector 1 and the control processor 2 are preferably provided on the body. The string switch controller 3 may be a physical key or a virtual key, for example, an electronic screen is provided on the neck, the virtual key is provided on the display screen, and the current playing mode and the next mode to be played and the chord name are also displayed on the electronic screen.
Specifically, the string signal collector 1 is associated with each of 6 strings. When the user stirred one of them string, this string will produce the vibration, and string signal collector 1 can gather the string vibration signal that whether this string of sign was stirred by the user and will this string vibration signal conversion be the signal of telecommunication.
It is known that when the user stirs the strings to a large extent, the volume of the corresponding notes emitted by the prior art electric guitar will also increase, so that the magnitude of the vibration of the strings determines the volume to be played by the playing device 6. The string signal collector 1 can also collect the vibration amplitude value of the string and convert it into an electric signal while identifying whether the string produces vibration.
With further reference to fig. 1, the control processor 2 is designed to include a control module 21, a first memory module 22, a second memory module 23 and a third memory module 24. Wherein the control module 21 acts as the "brain" of the entire electric guitar and is able to retrieve data from the first memory module 22, the second memory module 23 and the third memory module 24, respectively. The control module 21 can also be in communication with the string signal collector 1, the external mobile communication device 4, the playing apparatus 6, and the string switching controller 3, which will be described in detail below.
Specifically, the control module 21 can be communicatively connected with the external mobile communication device 4 (e.g., a mobile phone, a computer, etc.) to read the music score stored therein and identify the bar currently required to be played as an accompaniment bar or a chord bar, and the external mobile communication device 4 can also transmit an instruction to the control module 21. The control module 21 can also receive the electric signal from the string signal collector 1 and retrieve the corresponding note data from the corresponding storage module according to the electric signal and the current playing mode. The control module 21 can transfer the note data retrieved from the corresponding storage module to the playing device 6 to be played to the audience. The playback device 6 may for example employ loudspeakers or headphones or the like.
The first storage module 22 is enabled in the chord mode. Given that the sounds produced by an electric guitar are different when the same string is plucked at different chords, the first memory module is designed to store note data consisting of the sounds produced when different strings are plucked at different chords, the note data having been previously collected and stored in advance in the first memory module 22.
And starting the second storage module in the accompaniment mode. The plurality of notes in the accompaniment measures are arranged in a designated sequence, and the second storage module is also used for storing all the note data of the corresponding accompaniment measures in sequence. The second storage module may be connected with the external mobile communication device 4 so as to receive and store all note data of accompaniment measures in sequence.
The third memory module 24 is designed to store timbre data, such as different timbres emitted by guitars made of wood such as spruce, Korean pine, rosewood, acacia wood, or combinations thereof. The third memory module 24 is also capable of communicatively coupling with the external mobile communication device 4 to receive tone color data from the external mobile communication device 4 and to update the tone color data.
And the chord switching controller 3 is in communication connection with the control module 21 and is capable of sending a chord switching instruction to the control module 21 in case of being triggered. When the control module 21 receives the chord switching instruction, it will be able to call the note data at the chord switched to from the first storage module 22.
The operation of the chord pattern and the accompaniment pattern will be described in detail with reference to fig. 2.
In the chord mode, first, the control module 21 determines a chord corresponding to a chord bar to be played next based on the musical score it reads from the external mobile communication apparatus 4 and whether or not a chord switching instruction issued to the chord switching controller 3 is received. After receiving an electrical signal sent by the string signal collector 1, that is, after the control module 21 receives an instruction that a string is plucked by a user, the control module 21 calls note data that should be sent when the root string is plucked under the current chord from the first storage module 22, and then transmits the note data to the playing device 6.
For example, suppose that when the 2 nd string is shifted under the C chord, the 4 th string is shifted under the C chord, the 3 rd string is shifted under the F chord, and the note la is shifted, the data is already stored in the first storage module 22, and meanwhile, the first bar of the music score is a chord bar and is the C chord, and the second bar is also a chord bar and is the F chord. During playing, when the control module 21 finds that the first bar is the chord bar by reading the music score, it determines the chord of the chord bar as the chord C through the music score, and then after receiving the electrical signal sent by the string signal collector 1 and indicating that the 2 nd string is plucked, the control module 21 will fetch the data of the note do from the first storage module 22 and send the data to the playing device 6. Next, after receiving the electrical signal indicating that the 4 th string is plucked from the string signal collector 1, the control module 21 retrieves the note so data from the first storage module 22 and sends the data to the playing device 6. When the user presses the chord switching controller 3, the chord switching controller 3 sends an instruction to the control module 21 to switch to the next chord, and the control module 21 determines that the second bar to be played next is the F chord by reading the music score. After the control module 21 receives the electric signal indicating that the 3 rd string is plucked sent by the string signal collector 1, it will call the note la from the first storage module 22 and transmit the data to the playing device 6. In particular, it is noted that upon receipt of the instruction for a chord issued by the chord switching controller 3, the electric guitar switches from the C chord of the first bar to the F chord of the second bar specified on the musical score, regardless of whether the number of notes actually played and the number of notes included in the first bar coincide.
Through the mode, under the chord mode, a user does not need to remember the lattice which the left hand needs to press, and does not need to rapidly switch among a plurality of lattices, only the order of dialing the strings by the right hand needs to be remembered, the left hand of the user is liberated by the mode, and the playing difficulty is greatly reduced. In addition, the user can practice with one hand in the chord mode, namely, the right hand can be independently practiced. In addition, the method is also beneficial to the user to play freely through the change of the plucking string of the right hand according to the playing experience of the guitar, so that different chords can be played flexibly and different playing effects can be realized.
In the accompaniment mode, when the control module 21 receives a first string plucking command from the string signal collector 1, it will sequentially fetch the first note data of the corresponding accompaniment bar from the second storage module, when it receives a second string plucking command from the string signal collector 1, it will sequentially fetch the second note data of the corresponding accompaniment bar from the second storage module, and so on until all the note data of the corresponding accompaniment bar are fetched in sequence. It should be noted here that the control module 21 will call a note from the second memory module in sequence as soon as a string is plucked, independently of whether the plucked string is correct or not, only in relation to whether a string is plucked or not. The playing of the accompaniment measure can be completed by only shifting a sufficient number of strings according to the rhythm. If the strings are not plucked a sufficient number of times, the electric guitar will always be in the accompaniment mode. Therefore, the player only needs to know the number of the notes contained in the accompaniment measure and pokes any string according to the rhythm to finish the playing of the measure. In playing the accompaniment measures, the player need not even remember the plucking fingering of the right hand, which further simplifies the use of the electric guitar in the present application.
When the accompaniment measure is the chord measure, the control module 21 enables the electric guitar to directly and automatically enter the chord mode after all the note data in the accompaniment measure is called. For example, assuming that the accompaniment measure includes 5 notes, when the control module 21 receives 5 electric signals from the string signal collector 1, it automatically enters the chord mode of the electric guitar and identifies the chord of the next chord measure, and when the control module 21 receives the 6 th electric signal, it will call the correct notes from the first storage module 22 according to the chord of the measure read from the music score and which string is plucked. If the current accompaniment measure is a tail (i.e. the last measure of the music score), when the plucking times of the strings exceed the number of the notes included in the corresponding accompaniment measure, the plucking exceeding the number of the notes will not make the electric guitar make any sound because the second storage module does not have the redundant notes to be called by the control module.
When the chord measure is followed by the accompaniment measure, the control module 21 needs to receive the switching command from the chord switching controller 3 to make the electric guitar enter the accompaniment mode from the chord mode. When the user triggers the chord switching controller 3, the control module 21 determines the type of the bar after the chord bar from the music score, repeats the operation of the chord mode described above if the bar is still the chord bar, and executes the operation of the accompaniment mode described above if the bar is the accompaniment bar.
Control module 21 sets up the vibration range value that sets for the string corresponding to appointed volume size, and when the actual vibration range value of string was less than the vibration range value of setting for vibration range value, control module 21 sent the instruction of the appointed volume size of broadcast to playback devices 6, corrects to less volume promptly to guarantee the best effect of appreciating.
When the actual vibration amplitude value of the string is larger than the set vibration amplitude value, the control module 21 first determines a multiple of the vibration amplitude value of the string compared to the set vibration amplitude value and then sends an instruction of playing the volume to the playing device 6, wherein the volume is a corresponding multiple of the specified volume.
When a note of a specified timbre needs to be played, for example, when a user sets on a mobile phone, the control module 21 will call timbre data from the third storage module 24 and combine the data with the note data called from the first storage module 22 or the second storage module 23 to obtain a target music set. This expands the application range of the electric guitar and realizes various auditory effects.
Further, the electric guitar of the present invention also includes a sound hole pickup 5 of the prior art, which sound hole pickup 5 is also connected to a playing device 6. When only the sound hole pickup 5 is connected to the playing device 6, the electric guitar can still be used as a state of the art electric guitar for professional use, i.e. when neither the control processor 2 nor the string switch controller 3 is operational. When the string signal collector 1 is adopted, this electric guitar can be used by beginners, and the tone hole pickup 5 does not operate at this time. The tone hole pickup 5 and the string signal collector 1 are used alternatively, so that the electric guitar can be played by people having different playing experiences. A switching key can be arranged on the musical instrument body for the sound hole pickup 5 and the string signal collector 1.
The communication connection can be connected by means of Bluetooth or a wireless network.
Claims (14)
1. An electronic musical instrument comprising a body, a neck and strings and being connected or operatively connectable to a playback device (6), characterized in that it further comprises:
the string signal collector (1) is designed to collect string vibration signals representing whether the strings are stirred or not from each string and convert the collected string vibration signals into electric signals;
a control processor (2) comprising:
a first storage module (22) designed to store note data consisting of sounds made when different strings are plucked at different chords,
a control module (21) designed to be able to receive the electrical signals from the string signal collector (1) and to be communicatively connectable with an external mobile communication device (4) to read a music score stored in the external mobile communication device (4), the music score comprising a chord bar played at a chord at which the electronic musical instrument is in a chord mode, the control module (21) being further designed to be communicatively connectable with the playback device (6) to send an instruction to play a note to the playback device (6).
2. Electronic musical instrument according to claim 1, further comprising a chord switching controller (3) communicatively connected to the control module (21) for sending a chord switching instruction to the control module (21) upon triggering, wherein in the chord mode, the control module (21) is designed to determine the chord corresponding to the chord bar to be played next based on the read score and whether the chord switching instruction is received.
3. The electronic musical instrument of claim 2, wherein the musical score further includes at least one accompaniment measure arranged in a specified sequence from a plurality of note data, wherein the electronic musical instrument is in an accompaniment mode while the accompaniment measure is played, the control processor further includes a second memory module configured to be communicatively coupled to the external mobile communication device to receive and sequentially store all of the note data of the accompaniment measure from the external mobile communication device, and wherein in the accompaniment mode, the control module is further configured to sequentially retrieve one of the note data of the corresponding accompaniment measure from the second memory module upon receiving an electrical signal from the string signal collector until the stored all of the note data of the corresponding accompaniment measure is sequentially retrieved.
4. The electronic musical instrument according to claim 3, wherein the control module is further designed to cause the electronic musical instrument to switch from the chord mode to the accompaniment mode upon receiving a switch instruction from the chord switching controller when the currently played chord bar is read from the musical score and thereafter is an accompaniment bar.
5. An electronic musical instrument as claimed in claim 3 or 4, characterized in that the control module is further designed to, when a currently played accompaniment measure is read from the score followed by a chord measure, automatically enter the electronic musical instrument into a chord mode after all the note data of the corresponding accompaniment measure stored has been sequentially retrieved from the second storage module.
6. An electronic musical instrument as claimed in claim 5, characterized in that the string signal collector is also designed to collect the vibration amplitude values of plucked strings and to convert them into electrical signals, the control module being further designed to determine the command regarding the volume level to the playback device on the basis of the received electrical signals characterizing the vibration amplitude values of the corresponding strings.
7. The electronic musical instrument of claim 6, wherein the control module is configured to set a set vibration amplitude value for the string corresponding to a specified volume level, the control module sending an instruction to the playback device to play back the specified volume level when the actual vibration amplitude value of the string is less than the set vibration amplitude value; when the actual vibration amplitude value of the string is larger than the set vibration amplitude value, the control module firstly determines the multiple of the vibration amplitude value of the string compared with the set vibration amplitude value and then sends a command of playing the sound volume with the corresponding multiple of the specified sound volume to the playing device.
8. An electronic musical instrument according to claim 3 or 7, wherein the control processor further comprises a third memory module designed to store different timbre data and communicatively connected to the external mobile communication device, the control module being designed to retrieve timbre data from the third memory module and combine the retrieved timbre data with the note data retrieved from the first memory module or the second memory module to obtain the target music set when an instruction to play the electronic musical instrument at the specified timbre is received from the external mobile communication device.
9. The electronic musical instrument according to claim 3, wherein the playing device is a speaker or an earphone, the external mobile communication device is a smart phone or a computer, and the external mobile communication device is communicatively connected with the control module and the second storage module by means of Bluetooth and/or a wireless network.
10. The electronic musical instrument as set forth in claim 2, further comprising a sound hole pickup provided on said body, said sound hole pickup being directly connected to said playing device, said sound hole pickup being used alternatively to said string signal collector.
11. A control method of an electronic musical instrument according to claim 2, characterized by comprising, when said musical score includes only a chord bar, the steps of:
(1) the control module (21) determines the chord corresponding to the chord bar to be played next based on the read music score and whether the chord switching instruction sent by the chord switching controller (3) is received;
(2) the control module (21) calls corresponding notes from the first storage module based on the electric signals received from the string signal collector (1);
(3) the control module (21) sends the note data to the playing equipment;
(4) the control module (21) decides whether to enter the next chord based on whether the next chord switching instruction is received.
12. A control method of an electronic musical instrument according to any one of claims 3 to 9, characterized by comprising, when the musical score includes only a chord bar, the steps of:
(1) the control module (21) determines the chord corresponding to the chord bar to be played next based on the read music score and whether the chord switching instruction sent by the chord switching controller (3) is received;
(2) the control module (21) calls corresponding notes from the first storage module based on the electric signals received from the string signal collector (1);
(3) the control module (21) sends the note data to the playing equipment;
(4) the control module (21) decides whether to enter the next chord based on whether the next chord switching instruction is received.
13. The control method as set forth in claim 12, wherein when the score further includes an accompaniment measure and the accompaniment measure is located before the chord measure, further comprising the steps of:
(1) the control module determines a current accompaniment measure based on the read music score;
(2) the control module receives an electric signal from the string signal collector and then sequentially calls note data of corresponding accompaniment measures from the second storage module in sequence;
(3) the control module sends the note data to the playing equipment;
(4) after all the note data of the stored corresponding accompaniment measures are sequentially retrieved from the second storage module, the electronic musical instrument automatically enters a chord mode.
14. The control method according to claim 13, wherein when the chord bar precedes the accompaniment bar, the electronic musical instrument switches from the chord mode to the accompaniment mode upon receiving the switching instruction from the chord switching controller.
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