JPH0685515U - Tone control device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a tone color control device capable of easily performing an operation of setting a desired tone color. A parameter storage device for storing a plurality of sets of parameters defining a plurality of tone color types is provided, and whether a variable range allowed for each parameter stored in the parameter storage device 7A, a fixed value, or no setting is required. A tone color control device having a structure in which each condition is added and written, and parameters are given to the tone color adjuster 2 according to these conditions.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tone color control device which can be used in various electronic musical instruments or audio signal processors.

[0002]

[Prior art]

 FIG. 2 shows a schematic configuration of the audio signal processor and an outline of a conventional tone color control device. The audio signal processor is composed of an analog input section 1, an analog / digital converter 2, a timbre adjuster 3 composed of a signal processing IC, a digital / analog converter 4, and an analog output section 5. To be done. Reference numeral 6 denotes a tone color controller. The timbre controller 6 is composed of a timbre memory 6A, a parameter input means 6B, and a timbre selector 6C.

The tone color memory 6A stores parameters for obtaining various types of tone colors such as tone sounds such as distortion sound (distortion effect) and clean sound (chorus effect or reverb effect). Which timbre type is selected is selected by the setting of the timbre selector 6C. The timbre selector 6C can be constituted by an alternative means such as a rotary switch, or a large number of push button switches or the like.

The parameter input means 6B is used when writing parameters in the tone color memory 6A. In order to define one timbre, the number of parameters generally needs to be set to 20 to 30 in a device called a multi-effector, and more parameters in the case of a large number. Generally, a slide volume or a rotary volume is used as an operating device for inputting parameter settings. In this example, one slide volume SVR is used to input a plurality of parameters for the purpose of cost reduction. That is, a kind of parameter is selected by switching the selection switch SW, the value of the selected parameter is set by the slide volume SVR, and the set value of the parameter is written in the tone color memory 6A. It is necessary to set 20 to 30 parameter values as described above in order to specify the timbre.

[0005]

[Problems to be solved by the device]

 1. Conventionally, only one parameter could be changed by operating the input means once. 2. It was necessary for the user to empirically learn what parameters should be set to what values in order to obtain the desired timbre.

3. If you want to change a certain parameter from its current value, you need to readjust some of the other parameters at the same time in order to get a good timbre (effect). This is also 2. Similarly, it was necessary for the user to empirically learn which parameters should be readjusted and to what extent.

[0007] 4. In the past, the variable range of parameters was fixed, so it was necessary to set a wide variable range for each parameter in order to create more tones. Therefore, conversely, there are many combinations of parameter values that are unnecessary for the user, and it is difficult to reach the desired timbre. For the above reasons, rewriting the parameters so far required a lot of operations and empirical learning, and sound creation was troublesome.

FIG. 3 shows an example of parameter setting for a certain tone color type. In this parameter setting example, when the parameter # 1 is changed from x ₁ to x ′ ₁ , other parameters # 2 to # 5 simultaneously conform to the value of x ′ ₁ in order to obtain a good timbre (effect). Need to be changed. After all, all parameters need to be rewritten. Further, FIGS. 4 and 5 show examples of parameter setting for obtaining the timbre A and the timbre B. Numerical values shown in this setting example, for example, 1 to 3 indicate that the parameter value must be within this range. The values shown by x ₂ and x ₄ indicate that the parameters must be fixed to a certain value in order to obtain the desired timbre. Furthermore, * indicates parameters that do not need to be set.

As shown in FIG. 4 and FIG. 5, it is necessary for the user to empirically learn and remember which parameter should be set to what value in order to obtain a desired timbre. . Since the variable range of parameters is fixed, it is necessary to set a wide variable range of parameters in order to be able to set many tones. For example, in the example shown in FIGS. 4 and 5, the setting range of the parameter # 1 requires a variable range of 1 to 12 so that both the tone color types A and B can be set. The wider the variable range of each parameter, the more unnecessary combinations of parameter values will exist, and it will be difficult for the user to set the desired timbre. Furthermore, there are parameters that do not need to be set depending on the type of tone color, which has the drawback of causing confusion to the user. In addition, in FIGS. 3 to 5, the number of parameters is set to 5 in order to simplify the description, but in reality, as described above, the number of parameters is about 20 to 30, and therefore the user may The task of setting the tone you want to obtain becomes even more troublesome.

An object of the present invention is to provide a tone color control device that can set a desired tone color by a simple operation and can easily finely adjust the tone color.

[0011]

[Means for Solving the Problems]

 In the present invention, a plurality of sets of parameters defining tone colors and their variable ranges are prepared in the memory in advance, and a desired tone color is obtained by selecting one of the prepared plurality of sets of parameters. In addition, it is possible to memorize in advance which parameter should be adjusted at the same time as the parameter is finely adjusted, and at what rate, during fine adjustment of the timbre. It is configured so that the parameters selected by being prepared in the instrument can be set to the most desirable tone color by the user by operating one tone color fine adjustment device.

[0012]

【Example】

 FIG. 1 shows an embodiment of this invention. The parts corresponding to those in FIG. 2 are designated by the same reference numerals. In this invention, a plurality of sets of parameter storages for storing a plurality of parameters # 1 to # 5 given to the tone color adjuster 3 are provided. In the figure, 8A shows this parameter memory, and 8B shows the parameter fine adjustment memory. That is, this example shows a case where the tone color controller 5 is configured by a microcomputer. As is well known, the microcomputer includes a central processing unit 7, a ROM 8 storing a program for operating the central processing unit 7 in a predetermined order, a RAM 9 for temporarily storing operation input contents, and an input port 10. , Output port 11.

In this invention, a parameter storage 8A is provided in a partial area of the ROM 8. The parameter memory 8A is prepared in advance with tone colors for which parameter settings for obtaining a desired tone color can be selected. A tone color type selector 12 and a tone color fine adjustment operator 13 are connected to the input port 10. The tone color type selector 12 can be constituted by, for example, a rotary switch or a plurality of push button switches. The example shown in the figure shows the case where a plurality of push button switches are used. A tone color is assigned to each push button switch, and by turning on the push button switch assigned to the desired tone type, the microcomputer can read which push button switch is turned on, and the push button switch is supported. A set of parameters is read from the area. Assuming that there are, for example, five parameters for defining one tone color type, the five tone color parameters output from the output port 11 are parameters # 1, # 2, # 3, # 4, and # 5. Give to 3 and set the desired tone type. In this way, the tone color type assigned to each push button switch can be set by depressing one of the push button switches constituting the tone color selector 12.

On the other hand, the present invention is characterized by a configuration provided with a tone color fine tuning operation device 13. The timbre fine-tuning operation device 13 can be configured by a slide volume, for example. By operating the slider of the slide volume, the value of the parameter that needs to be changed among the selected parameters is finely adjusted. However, the feature of the present invention is that the variable range of each parameter is limited to an allowable range in advance.

That is, the parameters prepared in the parameter storage unit 8A are stored in advance in the fine adjustment storage unit 8B with values of the permissible variable range. For example, the tone color A shown in FIG. 4 is set. Parameter # 1 for storing the fact that it can be changed in the range of parameter values 1 to 3. It is stored in # 2 that the variable range is 4 to 6. It is stored in # 3 that the variable range is 7-9. # 4 is x _Four The value is fixed to the value of, and the fact that # 5 is not set is stored. In this way, by previously defining the variable range of the parameter value for each of the parameters # 1 to # 3 and operating the timbre fine tuning operation device 13, Each of the parameters # 1 to # 3 is changed within the allowable range. In this case, when the parameter # 1 is changed to 1 to 3, the parameter # 2 is changed to 4 to 6 and the parameter # 3 is changed to 7 to 9 so that the respective parameters change while maintaining the optimum conditions. Control.

On the other hand, the parameter # 1 for setting the tone color B shown in FIG. 5 stores parameter values 10 to 12 as a variable range, the parameter # 2 is fixed at x ₂ , and the parameter # 3 does not need to be set. The parameter # 4 stores the parameter values 13 to 15 as the variable range, and the parameter # 5 stores the parameter values 16 to 18 as the variable range.

[0017]

[Effect of device]

 As described above, according to the present invention, each parameter # 1 to # 5 is provided with a variable range and conditions such as no setting, fixed value, etc. Fine adjustments can be made. Therefore, the user can adjust the tone color to the most desired one simply by selecting the desired tone color type and then operating the tone color fine tuning operation device 13. Therefore, the desired tone color can be set with a simple operation, and anyone can set the tone color to their liking, and the effect is great for practical use.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram for explaining a conventional technique.

FIG. 3 is a diagram showing an example of setting parameters for defining a tone color.

FIG. 4 is a diagram showing an example of setting parameters for defining a tone color.

FIG. 5 is a diagram showing an example of setting parameters for defining a tone color.

[Explanation of symbols]

 1 sound source 2 tone color adjuster 3 amplifier 4 speaker 5 tone color controller 6 central processing unit 8 ROM 8A parameter memory 8B fine adjustment memory 9 RAM 10 input port 11 output port 12 tone color type selector 13 tone color fine tuning operator

Claims (1)

[Scope of utility model registration request] 1. A timbre control for an electronic musical instrument or a voice signal processor, comprising a timbre adjuster and capable of producing sounds having various types of timbres by giving a plurality of parameters to the timbre adjuster. In the device, a plurality of sets of parameter storages for storing the above parameters are provided, the required parameter combinations for each tone color type are stored in each set of parameter storages, and the parameters stored in each set of parameter storages are selected. The tone color control device is characterized in that the parameters stored in the tone color parameter storages of the respective groups can be variably adjusted in conjunction with one tone color fine adjustment operation device.