CN110419076B

CN110419076B - Electronic sound device and tone setting method

Info

Publication number: CN110419076B
Application number: CN201780082283.0A
Authority: CN
Inventors: 三浦右士
Original assignee: Yamaha Corp
Current assignee: Yamaha Corp
Priority date: 2017-03-02
Filing date: 2017-12-13
Publication date: 2023-10-03
Anticipated expiration: 2037-12-13
Also published as: JP6953746B2; JP2018146682A; WO2018159063A1; CN110419076A

Abstract

The invention provides an electronic sound device and a tone setting method capable of setting a proper tone by a simpler operation. When the prescribed function is not executed, a predetermined 1 st representative tone and a predetermined 2 nd representative tone are alternately set by a tone setting unit (84) for each operation of a setting operation member (4). When a predetermined function is executed, a3 rd representative tone color is set by a tone color setting unit (84). An acoustic signal having a tone color set by a tone color setting unit (84) is generated by a sound source circuit (16) in response to the sound emission instruction signal.

Description

Electronic sound device and tone setting method

Technical Field

The present invention relates to an electronic audio apparatus and a tone setting method for setting a tone.

Background

In an electronic audio device, an audio signal having a set tone color is generated. Non-patent document 1 describes an electronic keyboard capable of setting various tone colors in an acoustic signal. The pdf file of non-patent document 1 can be obtained from a URL address (http:// download.yamaha.com/api/asset/file/.

In the electronic keyboard of non-patent document 1, a user can select any one of a plurality of tone types by operating a specific button, and set the 1 st tone of the selected tone type. Further, by operating the other buttons in a state where the tone color type is selected, the user can arbitrarily select and set tone colors of other numbers belonging to the tone color type.

Non-patent document 1:2016 Yamaha corporation (2016 Yamaha Corporation), "PSR-A350 is one-out, and" PYRIUM (PSR-A350 Owner's Manual) ", 3 months in 2016, p.16

Disclosure of Invention

The user selects a suitable tone color according to the use state of the electronic audio device or the function executed by the electronic audio device, and sets the tone color to the audio signal. However, in the electronic keyboard of non-patent document 1, an operation for selecting a tone color is troublesome. Accordingly, an electronic audio device capable of setting an appropriate tone color by a simpler operation is desired.

The invention provides an electronic sound device and a tone setting method capable of setting a suitable tone by a simpler operation.

The electronic sound device according to the present invention includes: a setting operation member for switching to set a tone of the acoustic signal; a tone setting unit that sets a tone of the acoustic signal to a3 rd predetermined representative tone in response to execution of a predetermined function, and sets a tone of the acoustic signal by alternately switching a 1 st predetermined representative tone and a 2 nd predetermined representative tone each time the setting operation member is operated in response to non-execution of the predetermined function; and a generation unit that generates an acoustic signal having the tone color set by the tone color setting unit in response to the sound emission instruction signal.

In this electronic acoustic device, the user can alternately switch the tone color set each time the setting operation member is operated between the 1 st representative tone color and the 2 nd representative tone color when the predetermined function is not executed. Accordingly, the user can determine a more appropriate tone color among the 1 st and 2 nd representative tone colors according to the use state of the electronic audio apparatus and set the tone color. On the other hand, since the 3 rd representative tone corresponding to the predetermined function is set when the function is executed, the user does not need to perform a troublesome operation. As a result, a more appropriate tone color can be set by a simple operation.

The tone setting unit sets the tone of the acoustic signal to the 3 rd representative tone when the predetermined function is executed and the setting operation tool is operated, and sets the tone of the acoustic signal to be switched between the 1 st representative tone and the 2 nd representative tone when the predetermined function is not executed and the setting operation tool is operated. Since the tone color can be switched based on the operation of the setting operation tool, the user can confirm the change of the tone color and switch the tone color.

The predetermined function may include an exercise function, and the tone setting unit may set a tone corresponding to the exercise function to the 3 rd representative tone when the exercise function is executed. In this case, the 3 rd representative tone color suitable for the exercise function can be easily set without performing a troublesome operation when the exercise function is executed.

The predetermined function may include an automatic accompaniment function, and the tone setting unit may set a tone determined in accordance with a type of the automatic accompaniment sound as the 3 rd representative tone when the automatic accompaniment function is executed. In this case, the 3 rd representative tone color suitable for the automatic accompaniment function can be easily set without performing a troublesome operation when the automatic accompaniment function is executed.

The predetermined function may include an automatic setting function for setting a tone color of the acoustic signal according to a type of the music piece, and the tone color setting unit may set a tone color specified according to the type of the music piece as the 3 rd representative tone color when the automatic setting function is executed. In this case, the 3 rd representative tone color suitable for the automatic setting function can be easily set without performing a troublesome operation when the automatic setting function is executed.

The tone setting unit may set a wudezite tone as the 1 st representative tone and a piano tone as the 2 nd representative tone. A tone color according to the preference of the user can be set.

The predetermined function may include a component chord tone function, and the tone setting unit may set a tone predetermined according to a type of the component chord tone mode as the 3 rd representative tone when the component chord tone function is executed. The 3 rd representative tone color suitable for the chord tone decomposition function can be easily set without performing a troublesome operation.

The present invention relates to a tone color setting method for an electronic audio apparatus having a setting operation member for switching to set a tone color of an audio signal, the tone color setting method comprising the steps of: setting a tone color of the acoustic signal by alternately switching a predetermined 1 st representative tone and a predetermined 2 nd representative tone for each operation of the setting operation member in response to not executing a predetermined function in the electronic acoustic device, and setting a tone color of the acoustic signal to a predetermined 3 rd representative tone in response to executing the predetermined function; and generating an acoustic signal having the set tone color in response to the audible indication signal. According to this tone color setting method, an appropriate tone color can be set by a simpler operation.

Further, the program according to the present invention is a program readable by a computer of an electronic audio apparatus having a setting operation means for switching to set a tone of an audio signal, wherein the program causes the electronic audio apparatus to generate an audio signal having the set tone in response to the sound emission instruction signal by switching alternately a predetermined 1 st representative tone and a predetermined 2 nd representative tone for each operation of the setting operation means in response to not executing a predetermined function of the electronic audio apparatus by executing the computer to set the tone of the audio signal to the predetermined 3 rd representative tone in response to executing the predetermined function. According to this program, an appropriate tone color can be set by a simple operation.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, an appropriate tone color can be set by a simpler operation.

Drawings

Fig. 1 is a block diagram showing a configuration of an electronic audio device according to an embodiment of the present invention.

Fig. 2 is a block diagram showing the functional configuration of the tone color setting control unit in fig. 1.

Fig. 3 is a diagram showing an example of correspondence between the category of accompaniment style and 3 rd representative tone.

Fig. 4 is a flowchart showing the tone setting process performed by the tone setting control unit.

Fig. 5 is a flowchart showing the tone setting process performed by the tone setting control unit.

Fig. 6 is a diagram showing an example of a tone color set by the tone color setting process.

Detailed Description

The electronic audio device and the tone setting method according to the embodiment of the present invention will be described in detail below with reference to the drawings.

(1) Structure of electronic sound device

Fig. 1 is a block diagram showing a configuration of an electronic audio device according to an embodiment of the present invention. As shown in fig. 1, the electronic audio device 1 includes: a performance operation member 2, a detection circuit 3, a setting operation member 4, a detection circuit 5, a display 6, and a display circuit 7.

The performance operating member 2 includes a keyboard or a drum pad, or the like. The performance operation element 2 is connected to the bus 18 via the detection circuit 3, and performance data based on performance actions of the user is input through the performance operation element 2. The setting operation element 4 includes a switch for on/off operation, a rotary encoder for rotation operation, a linear encoder for sliding operation, or the like, and is connected to the bus 18 via the detection circuit 5. The setting operation element 4 is used for switching tone, adjusting volume, turning on/off power supply, and various settings.

The display 6 is connected to the bus 18 via the display circuit 7. In the display 6, a music name, a musical score, or other various information is displayed. The display 6 may be a touch screen display. In this case, the user can instruct various operations by operating the display 6.

The electronic audio device 1 further includes: a RAM (random access memory) 9, a ROM (read only memory) 10, a CPU (central processing unit) 11, a timer 12, a storage device 13, and a communication I/F (interface) 14. The RAM 9, ROM 10, CPU 11, storage device 13, and communication I/F14 are connected to the bus 18, and the timer 12 is connected to the CPU 11. External devices such as external storage device 15 may be connected to bus 18 via communication I/F14. The RAM 9, ROM 10, and CPU 11 constitute a tone setting control section 8.

The RAM 9 is constituted of, for example, a volatile memory, serves as a work area of the CPU 11, and temporarily stores various data. The ROM 10 is configured from, for example, a nonvolatile memory, and stores a computer program such as a control program and a tone setting program. The CPU 11 executes a tone setting program stored in the ROM 10 on the RAM 9 to perform tone setting processing described later. The timer 12 gives the CPU 11 information such as the current time.

The storage device 13 includes a storage medium such as a hard disk, an optical disk, a magnetic disk, or a memory card. One or more pieces of music data are stored in the storage device 13. The musical composition data is an acoustic signal (audio data) representing musical composition. Here, the acoustic signal is a sample data sequence representing the waveform of sound. Music data may be generated based on performance data input from the performance operators 2 and stored in the storage device 13. The performance data and the musical composition data include sound emission instruction signals.

The tone color setting program described above may be stored in the storage device 13. The external storage device 15 may include a storage medium such as a hard disk, an optical disk, a magnetic disk, or a memory card, and may store various data such as music data or tone setting programs, as in the storage device 13. The tone color setting program in the present embodiment may be provided so as to be stored in a computer-readable recording medium, and may be installed in the ROM 10 or the storage device 13. In addition, when the communication I/F14 is connected to a communication network, a tone setting program transmitted from a server connected to the communication network may be installed in the ROM 10 or the storage device 13.

The electronic audio device 1 further includes a sound source circuit 16 and a sound system 17. The sound source circuit 16 is connected to the bus 18, and the sound system 17 is connected to the sound source circuit 16. The sound source circuit 16 generates an acoustic signal based on the performance data input from the performance operation member 2, the musical composition data given from the storage device 13, or the like, and gives an acoustic effect to the acoustic signal. The sound system 17 includes a D/a (digital/analog) conversion circuit, an amplifier, and a speaker, and emits musical sound based on an acoustic signal supplied from the sound source circuit 16.

(2) Functional structure of tone setting control unit 8

Fig. 2 is a block diagram showing the functional configuration of the tone color setting control unit 8 in fig. 1. As shown in fig. 2, the tone setting control unit 8 includes a function selecting unit 81, a tone switching unit 82, a tone acquiring unit 83, a tone setting unit 84, and a processing unit 85. The CPU 11 of fig. 1 executes a tone color setting program stored in the ROM 10 or the storage device 13, thereby realizing the functions of each section of the tone color setting control section 8 of fig. 2.

The function selecting unit 81 selects a predetermined function (hereinafter, referred to as a specific function) to be executed in the electronic acoustic device 1 based on the operation of the setting operation element 4. Specific functions include, for example, an exercise function and an automatic accompaniment function. Here, the exercise function is a function for guiding the performance operation member 2 corresponding to the operation in accordance with the progress of the music for exercise, thereby allowing the user to grasp the performance of the music. The automatic accompaniment function is a function of automatically outputting accompaniment sounds based on accompaniment data and a chord (chord) to be assigned, which are set in correspondence with the category of the accompaniment style.

The tone color switching section 82 switches the tone color to be set to the sound source circuit 16 between the predetermined 1 st representative tone color and the predetermined 2 nd representative tone color each time the setting operation member 4 is operated when the specific function is not being performed (when the specific function is not being performed). In the present embodiment, the case where the specific function is not executed means a normal performance in which the exercise function and the automatic accompaniment function are not used.

Here, in the case of playing national music such as middle east, india, or china, the tone color of the national musical instrument may be preferred for the user. Therefore, in the present embodiment, the 1 st tone (for example, "wude tone") of the tone class "eastern" is predetermined as the 1 st representative tone. On the other hand, for a user with little experience in playing, the user prefers "piano tone" in which the recognition of a performance sound is easy, because it is easy to recognize the start of a sound production, and because it is easy to hear even during the playing of other performance parts, and because it is familiar. Therefore, in the present embodiment, "piano tone color" is predetermined as the 2 nd representative tone color.

The tone color acquisition unit 83 stores in advance a correspondence relationship between the 3 rd representative tone color to be set in the sound source circuit 16 when the specific function is executed and the type of the specific function. When executing a specific function, the tone color acquisition unit 83 acquires the 3 rd representative tone color corresponding to the specific function based on the stored correspondence relation. In performing the exercise function, the 3 rd representative tone is, for example, "piano tone". When the automatic accompaniment function is performed, the 3 rd representative tone is the 1 st tone of the tone class corresponding to the class of accompaniment styles.

Fig. 3 is a diagram showing an example of correspondence between the category of accompaniment style and 3 rd representative tone. In the example of fig. 3, when the accompaniment style is "arabic", the 1 st tone of the tone color category "eastern", i.e., "wude tone color", corresponds to the 3 rd representative tone. In the case where the accompaniment style is "folk song (ballad)", the 1 st tone of the tone color category "piano", i.e., "grand piano tone color", corresponds to the 3 rd representative tone color. The correspondence between the accompaniment style category and the 3 rd representative tone color is not limited to the example of fig. 3, and other correspondence may be determined according to a predetermined rule.

The tone color setting section 84 of fig. 2 sets an arbitrary tone color based on the operation of the setting operation element 4 by the user. The musical composition data for exercise contains tone specification information for specifying a tone. When the processing unit 85 acquires the musical composition data for exercise, the tone setting unit 84 sets the tone specified by the tone specification information of the musical composition data.

The tone setting unit 84 sets the 1 st or 2 nd representative tone after being switched by the tone switching unit 82 or the 3 rd representative tone acquired by the tone acquisition unit 83, based on the operation of the setting operation element 4 by the user. Therefore, if the setting operation piece 4 is operated when the specific function is executed, the 3 rd representative tone is set, and if the setting operation piece 4 is operated when the specific function is not executed, the set tone is switched between the 1 st representative tone and the 2 nd representative tone for each operation.

The processing unit 85 performs various processes for executing a specific function. Specifically, when the training function is selected by the function selecting section 81, the processing section 85 acquires the musical composition data for training from the storage device 13 based on the operation of the setting operation element 4, and guides the performance operation element 2 to be operated in accordance with the progress of the acquired musical composition. When the automatic accompaniment function is selected by the function selecting section 81, the processing section 85 acquires accompaniment data from the storage device 13 and chord from the performance operating member 2 based on the operation of the setting operating member 4.

When the performance operation member 2 is a keyboard, the processing unit 85 may change the musical scale assigned to the keyboard in association with the change in the setting of the tone color. For example, the processing unit 85 may change the musical scale specified by the average rule to another musical scale suitable for the specific national music. The processing unit 85 may adjust the range of the pitch change at the time of bending the sound as the setting of the tone color is changed.

The sound source circuit 16 generates an acoustic signal having a tone color set by the tone color setting section 84 in response to the sound emission instruction signal given by the performance operation member 2, for example. When the automatic accompaniment function is executed, the sound source circuit 16 generates an acoustic signal for accompaniment based on the accompaniment data and the chord acquired by the processing unit 85.

(3) Tone setting processing

Fig. 4 and 5 are flowcharts showing tone setting processing performed by the tone setting control unit 8. Fig. 6 is a diagram showing an example of the tone color set by the tone color setting process. The tone setting processing of fig. 4 and 5 is performed by the CPU 11 of fig. 1 executing a tone setting program stored in the ROM 10 or the storage device 13.

First, the tone color setting section 84 determines whether or not a tone color is instructed based on an operation of the setting operation element 4 by the user (step S1). If no tone color is instructed, the tone color setting unit 84 proceeds to step S3. In this case, the setting of the tone color at the current time is maintained. When the user does not instruct the tone color at the initial time, the predetermined tone color setting is maintained. On the other hand, when the tone color is indicated in step S1, the tone color setting unit 84 sets the indicated tone color (step S2).

Next, the processing unit 85 determines whether or not the exercise function is selected by the function selecting unit 81 (step S3). If the exercise function is not selected, the processing unit 85 proceeds to step S6. In the case where the exercise function is selected, the processing section 85 does not execute the automatic accompaniment function (step S4), and executes the exercise function (step S5).

Next, the processing unit 85 determines whether or not a musical composition for exercise is selected based on the operation of the setting operation element 4 by the user (step S6). If the music is not selected, the processing unit 85 proceeds to step S9. When a musical composition is selected, the processing unit 85 acquires musical composition data representing the selected musical composition from the storage device 13 (step S7). The tone color setting section 84 sets tone colors based on the tone color specification information of the music data acquired by the processing section 85 (step S8).

Next, the processing unit 85 determines whether or not automatic accompaniment data is selected based on the operation of the setting operation element 4 by the user (step S9). In the case where the automatic accompaniment data is not selected, the processing section 85 proceeds to step S13. When the automatic accompaniment data is selected, the processing unit 85 acquires the selected automatic accompaniment data from the storage device 13 (step S10). In addition, the processing section 85 does not perform the exercise function (step S11), and performs the automatic accompaniment function (step S12).

Next, the tone color setting unit 84 determines whether or not the setting operation tool 4 is operated by the user (step S13). Specifically, the tone color setting unit 84 determines whether or not the setting operation element 4 for switching the tone color of the acoustic signal generated by the acoustic source circuit 16 is operated. When the setting operation member 4 is operated, the tone color setting section 84 determines whether or not the automatic accompaniment function is being executed (step S14). Since the determination in step 14 is performed immediately after the determination in step 13, in step 14, it is substantially determined whether the automatic accompaniment function is being executed when the setting operation member 4 is operated, or whether the setting operation member 4 is operated when the automatic accompaniment function is being executed. When the automatic accompaniment function is being executed, the tone setting unit 84 sets the 3 rd representative tone acquired by the tone acquisition unit 83 in accordance with the automatic accompaniment function (step S15). In the present embodiment, as shown in fig. 6, the 1 st tone (for example, "wude tone") of the tone class corresponding to the class of accompaniment styles is set as the 3 rd representative tone.

If the automatic accompaniment function is not being executed, the tone color setting unit 84 determines whether or not the practice function is being executed (step S16). Since the determination in step 16 is performed immediately after the determination in step 13, in step 16, it is substantially determined whether the exercise function is being executed when the setting operation element 4 is operated, or whether the setting operation element 4 is operated when the exercise function is being executed. When the training function is being executed, the tone setting unit 84 sets the 3 rd representative tone acquired by the tone acquisition unit 83 in accordance with the training function (step S17). In the present embodiment, as shown in fig. 6, for example, "piano tone" is set as the 3 rd representative tone.

When the setting operation member 4 is operated, that is, when the automatic accompaniment function is not being executed and the training function is not being executed, the tone setting unit 84 determines whether or not the 1 st representative tone is set in the tone of the acoustic signal (step S18). When the 1 st representative tone is not set, the tone setting unit 84 sets the 1 st representative tone by the tone switching unit 82 (step S19). In the present embodiment, as shown in fig. 6, the 1 st tone (for example, "wude tone") of tone class "eastern" is set as the 1 st representative tone. When the 1 st representative tone is set, the tone setting unit 84 sets the 2 nd representative tone by the tone switching unit 82 (step S20). In the present embodiment, as shown in fig. 6, the "piano tone color" is set as the 2 nd representative tone color.

If the operation element 4 is not operated in step S13, or if any of steps S15, S17, S19, and S20 is executed, the processing unit 85 determines whether or not another operation is received (step S21). Other operations include various operations for playing, adjusting volume, acquiring music data, recording, and the like. Upon receiving the operation, the processing section 85 executes processing corresponding to the operation (step S22). In the case where no operation is received in step S21, or after step S22 is executed, the processing section 85 returns to step S1.

(4) Effects of

In the electronic acoustic device 1 according to the present embodiment, the user can alternately switch the set tone between the 1 st and 2 nd representative tone every 1 st operation of the setting operation element 4 when the user does not perform a specific function. Accordingly, the user can determine and set a more appropriate tone color among the 1 st and 2 nd representative tone colors according to the use state of the electronic audio apparatus 1. On the other hand, the 3 rd representative tone color corresponding to the specific function is set when the specific function is executed, so that the user does not need to perform a cumbersome operation. As a result, a more appropriate tone color can be set by a simple operation.

(5) Other embodiments

(a) In the above embodiment, the specific functions executed in the electronic audio device 1 include the exercise function and the automatic accompaniment function, but the present invention is not limited to this. Certain functions may be included in addition to or instead of these functions. The other functions may include, for example, an automatic setting function or an action-breaking chord (arpeggio) function.

The automatic setting function is a function of setting the tone colors respectively specified according to the types of the performance songs as the 3 rd representative tone color. The split chord tone function is a function of performing split chord tone performance (generating scattered sound) based on the split chord tone mode selected according to the operation of the performance operation member 2. In executing the automatic setting function, the 1 st tone of each tone type may be sequentially set as the 3 rd representative tone each time the setting operation member 4 is operated. In addition, when the separation chord tone function is executed, for example, the 1 st tone of the tone color category to which the tone color determined in advance according to the kind of the separation chord tone mode selected belongs may be set as the 3 rd representative tone.

In addition, a plurality of specific functions may be executed at the same time. For example, in the case where the practice function and the automatic setting function are simultaneously performed, the "piano tone" of the number determined by the performance song may be set to the 3 rd representative tone. Alternatively, in the case where the automatic accompaniment function and the automatic setting function are simultaneously performed, the 3 rd representative tone may set the numbered tone belonging to the tone category corresponding to the category of the accompaniment style and determined by the performance song as the 3 rd representative tone.

(b) In the above embodiment, the 3 rd representative tone color is set in accordance with the setting operation piece 4 being operated when executing the specific function, but the present invention is not limited thereto. Even in the case where the setting operation member 4 is not operated, the 3 rd representative tone color can be set in correspondence with the specific function being performed. For example, when the execution of the specific function is set by the user, even if the setting operation member 4 is not operated, the tone color of the acoustic signal may be set to the 3 rd representative tone color before the execution of the specific function. In this case, before the specific function is executed, the sound source circuit 16 switches the tone color of the acoustic signal to the 3 rd representative tone color, and the specific function is executed based on the acoustic signal having the 3 rd representative tone color. In this case, when the execution of the specific function is completed, the tone color of the acoustic signal may be restored from the 3 rd representative tone color to the original tone color.

(c) In the above embodiment, the tone color setting control section 8 of fig. 2 is implemented by hardware such as the CPU 11 and software such as a tone color setting program, but each constituent element of the tone color setting control section 8 may be implemented by hardware such as an electronic circuit.

(6) Correspondence between each constituent element of the embodiment and each part of the embodiment

The following describes examples of correspondence between the respective components of the present invention and the respective parts of the embodiments, but the present invention is not limited to the following examples. As each constituent element of the present invention, other various elements having the structure or function described in the present invention can be used.

In the above embodiment, the sound source circuit 16 is an example of the generating section.

Description of the reference numerals

1 … electronic sound apparatus, 2 … playing operation element, 3, 5 … detecting circuit, 4 … setting operation element, 6 … display, 7 … display circuit, 8 … tone setting control section, 9 … RAM,10 … ROM,11 … CPU,12 … timer, 13 … memory device, 14 … communication I/F,15 … external memory device, 16 … sound source circuit, 17 … sound system, 18 … bus, 81 … function selecting section, 82 … tone switching section, 83 … tone acquiring section, 84 … tone setting section, 85 … processing section

Claims

1. An electronic sound device, comprising:

a setting operation member for switching to set a tone of the acoustic signal;

a tone setting unit that sets a tone of the acoustic signal to a3 rd predetermined representative tone in response to execution of a predetermined function, and sets a tone of the acoustic signal by alternately switching a 1 st predetermined representative tone and a 2 nd predetermined representative tone each time the setting operation member is operated in response to non-execution of the predetermined function; and

a generating unit that generates an acoustic signal having the tone color set by the tone color setting unit in response to the sound emission instruction signal,

the tone setting unit sets the tone of the acoustic signal to the 3 rd representative tone when the predetermined function is executed and the setting operation tool is operated, and sets the tone of the acoustic signal to be switched between the 1 st representative tone and the 2 nd representative tone when the predetermined function is not executed and the setting operation tool is operated.

2. The electronic sound device according to claim 1, wherein,

the prescribed function includes an exercise function,

the tone setting unit sets a tone corresponding to the exercise function as the 3 rd representative tone when the exercise function is executed.

3. The electronic acoustic device according to claim 1 or 2, wherein,

the prescribed function includes an automatic accompaniment function,

the tone setting unit sets, when executing the automatic accompaniment function, a tone determined in accordance with the type of the automatic accompaniment sound as the 3 rd representative tone.

4. The electronic acoustic device according to claim 1 or 2, wherein,

the predetermined function includes an automatic setting function for setting a tone color of the acoustic signal according to a type of the music piece,

the tone setting unit sets the 3 rd representative tone as the tone determined in accordance with the genre of the music piece when the automatic setting function is executed.

5. The electronic acoustic device according to claim 1 or 2, wherein,

the tone setting unit sets a wudezite tone as the 1 st representative tone and a piano tone as the 2 nd representative tone.

6. The electronic acoustic device according to claim 1 or 2, wherein,

the prescribed function includes a chord tone decomposing function,

the tone setting section sets a tone predetermined in accordance with the type of the chord-down tone pattern as the 3 rd representative tone when the chord-down function is executed.

7. A tone setting method is provided for an electronic audio device having a setting operation member for switching to set a tone of an audio signal,

the tone setting method comprises the following steps:

setting a tone color of the acoustic signal by alternately switching a predetermined 1 st representative tone and a predetermined 2 nd representative tone for each operation of the setting operation member in response to not executing a predetermined function in the electronic acoustic device, and setting a tone color of the acoustic signal to a predetermined 3 rd representative tone in response to executing the predetermined function; and

generating an acoustic signal having the set tone color in response to the sound emission indication signal,

the tone color of the acoustic signal is set to the 3 rd representative tone when the predetermined function is executed and the setting operation tool is operated, and the tone color of the acoustic signal is set to be switched between the 1 st representative tone and the 2 nd representative tone when the predetermined function is not executed and the setting operation tool is operated.

8. A computer-readable recording medium storing a program readable by a computer of an electronic audio apparatus having a setting operation member for switching to set a tone of an audio signal,

the program is executed by the computer, so that the electronic sound device sets the tone of the sound signal by alternately switching the predetermined 1 st representative tone and the predetermined 2 nd representative tone for each operation of the setting operation member in accordance with the fact that the predetermined function is not executed in the electronic sound device, sets the tone of the sound signal to the predetermined 3 rd representative tone in accordance with the fact that the predetermined function is executed,