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A method and scale generator for generating reference tone

A technology of reference sound and memory, applied in the direction of instruments, electroacoustic musical instruments, etc., can solve the problem of inability to generate high-precision reference sound, and achieve the effect of simple structure, high precision and convenient use.

Active Publication Date: 2021-05-25
武晓愚
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for generating a reference tone and a scale generator for the deficiency that the prior art cannot produce a high-precision reference tone

Method used

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  • A method and scale generator for generating reference tone
  • A method and scale generator for generating reference tone
  • A method and scale generator for generating reference tone

Examples

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Embodiment Construction

[0045] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0046] like figure 1 As shown, it is a schematic flow chart of a method for generating a reference tone provided by an embodiment of the present invention. In this method, the following steps are included:

[0047] S101, the oscillation source generates an initial signal with a frequency of a preset frequency, where the preset frequency of the initial signal is to meet the integer frequency division requirements of the memory and in order to reduce the error of the reference tone, it is necessary to use a high-frequency initial signal, for example, the initial signal The frequency can be 24MHz.

[0048] S102, the binary counter processes the initial signal, and sends the initial signal to a memory storing frequency...

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Abstract

The invention relates to a method for generating a reference tone and a scale generator, the method comprising the following steps: an oscillation source generates an initial signal with a preset frequency; a binary counter processes the initial signal, and sends the initial signal in the form of address input Provide a memory storing frequency division times and frequency division coefficients; the memory divides the preset frequency according to the frequency division times and frequency division coefficients to obtain a reference tone. A method for generating a reference tone and a scale generator provided by the present invention divide the frequency of the initial signal by using a memory that is preset with frequency division times and frequency division coefficients, so that the frequency division of the initial signal through the memory is realized. The frequency method is simple, and the obtained reference scale has the advantages of high precision.

Description

technical field [0001] The invention relates to the field of scale generation, in particular to a method for generating a reference sound and a scale generator. Background technique [0002] The reference tone is a standard scale with a specific frequency. At present, there are several ways to generate twelve reference electronic scales: [0003] 1. Twelve RC oscillators are used to realize the reference tone generator. The stability and accuracy of this reference scale generator are relatively poor, and there are few applications. [0004] 2. Twelve LC oscillators are used to realize the reference tone generator. This kind of reference scale generator has a large volume, and its stability and reliability are average, so it is rarely used in electronic pianos. [0005] 3. The reference tone generator is realized by the second frequency division method. With this method, twelve reference tones are generated by the same oscillator, and through twelve groups of different count...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10H5/06
CPCG10H5/06
Inventor 武晓愚
Owner 武晓愚
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