KR200420857Y1 - An apparatus for correcting a pitch - Google Patents

Abstract

The present invention relates to a device for correcting a sound, comprising: an input unit for receiving a command of a user so as to analyze a frequency included in sound information according to a user's utterance and compare the reference sound with a reference sound; A storage unit for storing frequency information on the reference sound of the score and screen configuration information to be displayed on the display unit; A sound collector configured to collect sound from the outside and convert the sound into a digital signal; Analyze the frequency of the sound collected by the sound collector, compare the frequency information and the height of the reference sound stored in the storage unit, calculate the frequency similarity as a percentage, and load the screen configuration information stored in the storage unit by frequency And a display unit for displaying information necessary for the user according to the screen configuration information transmitted from the control unit and a control unit for transmitting to the display unit with a degree of similarity.

Pitch, pitch, score, reference, absolute, frequency

Description

An apparatus for correcting a pitch

1 is a block diagram of a device for correcting a tone according to an embodiment of the present invention.

Figure 2 shows a first use example of the tone correction device according to an embodiment of the present invention.

Figure 3 shows a second use example of the tone correction device according to an embodiment of the present invention.

FIG. 4 shows the unique color assigned to each basic sound in FIG.

FIG. 5 illustrates a screen configuration when the user's voice does not match the basic sound in FIG. 3.

FIG. 6 illustrates a screen configuration when the user's voice coincides with the basic sound in FIG. 5.

<Explanation of symbols for the main parts of the drawings>

100: tone correction device 110: sound collector

120: control unit 130: speaker unit

140: storage unit 150: input unit

160: display unit 190: power supply unit

The present invention relates to a device for correcting sound pitch, and more particularly, to an apparatus capable of checking the accuracy of a pitch by analyzing a frequency included in sound information according to a user's utterance and comparing it with a reference sound.

Music basically includes the pitch associated with the pitch, the beat associated with the length of the note, and the strength and weakness associated with the intensity of the note.

The cause of the sound level is that it is innate when the sense of sound is born compared to other people, and the sense of sound or discernment of the sound is not different from ordinary people, but there is a lack of interest in songs or music. There are cases when you don't know how to sing.

In addition, it is a sensory tone that has difficulty in recognizing pitch, pitch, intensity, and beat from the brain, and a movement tone that does not properly express pitch due to breathing, wrong utterance, and beat. There is.

As a method of treatment and correction for such sound levels, the method through the music classroom of the music academy is most common. The music academy can be corrected by the diagnosis and training of experts such as vocal trainers, music therapists, vocal trainers, etc., and can be an effective treatment method in acquired or athletic cases.

However, in the case of innate or sensuous tone among the causes of the pitch, the volume and the tone of the three components of the loudness, timbre, and pitch are heard and felt, but the pitch is not heard and felt correctly. In this case, you don't realize that you feel wrong with other people, and most people think you're pitch by pointing out that it's pitch.

Even in this case, people who are born or sensational music can escape the music by attending music academy, but the training that they receive without knowing exactly where they are different from others is very inefficient. Often not very successful.

In addition, since the correction method made through the education of the vocal trainer and the like in the music academy is performed through a long time treatment in the state directly facing the vocal trainer, there is a big problem of space, time, and cost.

The present invention was derived in order to solve the problems according to the prior art described above, and aims to provide a device for correcting sound pitch that can visually identify a wrong voice directly by analyzing and displaying the user's voice in real time. do.

Another object of the present invention is to provide a device for correcting a pitch that allows a user to perform pitch practice without time and space constraints.

In order to achieve the above object, the device for correcting sound pitch according to the embodiment of the present invention, the input unit for receiving a user's command; A storage unit for storing frequency information on the reference sound of the score and screen configuration information to be displayed on the display unit; A speaker unit for outputting a reference sound selected by manipulation of the input unit according to the frequency information stored in the storage unit as an acoustic signal; A sound collector to input and collect sound from the outside; The frequency similarity is calculated by comparing the frequency of the sound collected by the sound collecting unit with the frequency of the reference sound selected by the input unit, and the display unit is loaded along with the frequency similarity by loading the screen configuration information stored in the storage unit. A control unit to transfer to the; And a display unit for displaying the frequency similarity degree according to the screen configuration information transmitted from the control unit, wherein the control unit displays the reference sound as a musical note on the display screen of the display unit, and the frequency similarity degree. It is characterized in that and displayed along with the note.

Here, the frequency similarity displayed together with the note is obtained by converting the difference between the frequency of the sound collected by the sound collector and the frequency of the reference sound selected by the input unit into a score, or the sound. The difference between the frequency of the sound collected by the collector and the reference sound selected by the input unit is preferably displayed as an error rate based on the frequency of the reference sound.

In addition, the tone correction device according to another embodiment of the present invention, the input unit for receiving a user's command; A storage unit for storing frequency information on the reference sound of the score and screen configuration information to be displayed on the display unit; A speaker unit for outputting a reference sound selected by manipulation of the input unit according to the frequency information stored in the storage unit as an acoustic signal; A sound collector to input and collect sound from the outside; Comparing the frequency of the sound collected by the sound collection unit with the frequency information on the reference sound selected by the input unit to calculate the frequency similarity, and load the screen configuration information stored in the storage unit with the frequency similarity A control unit for transmitting to the display unit; And a display unit for displaying the frequency similarity according to the screen configuration information transmitted from the controller, wherein the controller divides the pitch of a predetermined band into semitone intervals and displays a mark indicating each semitone according to the pitch of the notes. Arranged in a geometric structure, and characterized in that the frequency of the sound collected by the sound collector is analyzed and displayed at the corresponding position of the geometry.

Here, the geometrical structure is a spiral trajectory, and it is preferable that a unique color is set in the sign indicating each semitone.

Preferably, the space between the continuous halftones and the semitones is further divided into predetermined equal parts so that the display according to the frequency between the continuous halftones and the semitones is possible.

More preferably, when the frequency of the sound collected by the sound collecting unit coincides with the frequency of the semitone, the marker indicating the matched semitone is colored in a unique color that is set, while the alphabetic note name of the semitone is It is good to be displayed.

In the following, embodiments of the present invention are described with reference to the accompanying drawings.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, the terms to be described later are terms set in consideration of functions in the present invention, and these terms may vary depending on the intention or custom of the producer producing the product, and the definition of the terms should be made based on the contents throughout the present specification.

(Configuration of the device)

First, with reference to the accompanying drawings Figure 1 will be described the configuration of the device for correcting sound tone according to an embodiment of the present invention.

1 is a block diagram of a device for correcting a tone according to an embodiment of the present invention.

As shown in FIG. 1, the tone value correcting apparatus 100 according to the present exemplary embodiment includes a sound collector 110, a controller 120, a speaker 130, a storage 140, an input 150, and a display. And a power supply unit 190.

The sound collector 110 collects sound from the outside and converts the sound into a digital signal. That is, the sound collector 110 is composed of a microphone for collecting the sound spoken by the user and an A-D converter for converting the analog signal collected from the microphone into a digital signal. The microphone used here is preferably a directional microphone. As is well known, a directional microphone only collects sound from a particular direction, which reduces the likelihood that ambient noise will be collected together.

The controller 120 analyzes the frequency of the sound collected and converted by the sound collector 110 and analyzes the difference between the reference sound of the music score stored in the storage 140 as a percentage. In addition, the screen configuration information stored in the storage unit 140 is loaded and transferred to the display unit 160 together with the above-described percentage result to configure the screen. The screen configured by the controller 120 will be described later.

The speaker unit 130 outputs the reference sound stored in the storage unit 140 as an acoustic signal. In addition, an acoustic signal such as an operation state of the tone value correcting apparatus 100 may be output.

The storage unit 140 stores frequency information on the reference sound of the score and screen configuration information to be displayed on the display unit 160. In addition, sound information input from the sound collector 110 may be stored as needed.

The input unit 150 receives a user's command. The input unit 150 may be composed of a plurality of switches. The command of the user input to the input unit 150 may include commands such as power on / off, recording, playback, and selecting a sound to be practiced.

The display unit 160 displays screen configuration information transmitted from the controller 120.

The power supply unit 190 supplies power required for the operation of each component.

(First use example)

Hereinafter, a first use example of the tone correction apparatus according to the present embodiment will be described with reference to FIG. 2.

Figure 2 shows a first use example of the tone correction device according to an embodiment of the present invention.

Before the description, it is noted that data necessary for the screen configuration of the first use example is stored in the storage 140.

As shown in FIG. 2, this first use example describes the practice of the pitch proposed by the tone correction device 100 using the tone correction device 100.

In FIG. 2, reference numeral 161 indicates the difference between the user's voice frequency and the reference sound frequency in terms of a score of 100 points.

Reference numeral 162 denotes a difference between the user's voice frequency and the reference sound frequency as an error rate based on the reference sound frequency, and is referred to as a 'DLP index'.

The formula for calculating such a DLP index is as follows.

On the other hand, reference numeral 163 indicates the gender of the user.

Reference numeral 164 denotes a presentation mode of the reference sound. For example, at 164, 'Manual' means the user directly selects the reference sound by operating the input unit 150, and 'Scale' means that 13 reference sounds are sequentially selected in one-second intervals within one octave. 'Random' may be any one of 13 reference tones selected arbitrarily within one octave.

Reference numeral 165 denotes the time when the reference sound is presented.

Reference numeral 166 denotes the number of repetitions.

Reference numeral 167 indicates the user's voice frequency accuracy. For example, at 167, 'Excellent' means when the error rate indicated by reference numeral 162 is within ± 1.09999%, 'Flat' means when -1.10000 ~ -4.09999%, and 'Sharp' means +1.10000 ~ It may mean + 4.09999%, and 'Fail' may mean more than ± 4.10000%.

Reference numeral 168 denotes the position of the score of the reference sound.

In order for the user to practice pitch using the pitch correction apparatus 100, in operation 1, the input unit 150 is operated to turn on the pitch correction apparatus 100.

In a second step, a user manipulates the input unit 150 to select a gender. When 'Male' is selected as the gender, the controller 120 causes the notes C3 to C4 to be loaded from the storage 140, and when the 'Female' is selected, the notes C4 to C5 are loaded. That is, since the voiceable bandwidth varies depending on the gender, the controller 120 appropriately adjusts the range of exercises available according to the gender of the user. However, the present invention is not particularly limited thereto, and note that frequencies of all notes may be loaded as necessary. In this description, it is assumed that 'Male' is selected.

In a third step, the user operates the input unit 150 to select a mode. In this description, it is assumed that 'Manual' is selected and the note C3 is selected.

In a fourth step, the user manipulates the input unit 150 to select a time at which the reference sound is presented. In this description, it is assumed that '5' seconds are selected.

In a fifth step, the user manipulates the input unit 150 to select the number of times the reference sound is repeated. In this description, it is assumed that '5' times are selected.

In a sixth step, the user manipulates the input unit 150 to display the reference sound at '168'. Thereby, the note C3 is displayed on the notation of the score "168". At the same time, a frequency (131 Hz) corresponding to the note C3 is reproduced through the speaker unit 130. At this time, the reproduction time of the reference sound is reproduced for '5' seconds according to the above-described setting in the fourth step.

In a seventh step, the user speaks a sound corresponding to the note C3 to the sound collector 110.

In an eighth step, the voice of the user collected by the sound collector 110 is converted into a digital signal, and the frequency is analyzed by the controller 120. In this description, it is assumed that the analyzed frequency is 125.9827 Hz.

In a ninth step, the control unit 120 calculates a perfect score and an error rate based on a difference between the frequency 131 Hz corresponding to the note C3 and the analyzed frequency 125.9827 Hz and displays the reference scores 161 and 162. As shown in FIG. 2, the user's utterance corresponds to '62' as a perfect score and an error rate of '3.83%'. On the other hand, since the error rate is in the range of +1.10000 to + 4.09999%, reference numeral 167 will indicate 'Sharp'.

Since the number of repetitions is set to '5' in the tenth and fifth steps, the sixth to ninth steps are repeated four more times. Repeated results are displayed cumulatively at 167.

In an eleventh step, a user manipulates the input unit 150 to store a result. If necessary, the eleventh step may be omitted.

Through the above steps, the user can directly check and manage the accuracy of his or her voice.

(2nd use example)

Hereinafter, with reference to the accompanying drawings Figures 3 to 6 will be described a second use example of the tone correction device according to the present embodiment.

Figure 3 shows a second use example of the tone correction device according to an embodiment of the present invention, Figure 4 shows all the unique colors assigned to each basic sound in Figure 3, Figure 5 shows the user's FIG. 6 illustrates a screen configuration when the speech does not match the basic sound, and FIG. 6 illustrates a screen configuration when the user's speech matches the basic sound in FIG. 5.

Before the description, it is noted that data necessary for the screen configuration of the second use example is stored in the storage 140.

As shown in the drawing, the second use example describes the user practicing while moving the pitch continuously by using the tone value correcting apparatus 100.

As shown in FIG. 3, the controller 120 loads a screen configuration for arranging a spherical shape representing 40 notes into a spiral trajectory from the storage 140 and transmits the screen configuration to the display 160.

At this time, each sphere represents a total of 40 semitones to the notes F2 ~ G # 5, as shown in Table 1 below, the spherical shape is assigned a number from 1 to 40 has a unique color. 4 shows all the unique colors of each sphere.

First, in order for a user to practice pitch using the tone correcting apparatus 100, in a first step, the input unit 150 is operated to turn on the power of the tone correcting apparatus 100.

In a second step, the user manipulates the input unit 150 to select a practice mode having the screen configuration shown in FIG.

In a third step, the controller 120 loads data necessary for screen configuration from the storage 140 and transmits the data to the display unit 160. The state at this time is shown in FIG.

In a fourth step, the user speaks sound to the sound collector 110.

In a fifth step, the voice of the user collected by the sound collector 110 is converted into a digital signal, and the frequency is analyzed by the controller 120. In this description, it is assumed that the analyzed frequency is between B3 and C4.

In a sixth step, the controller 120 displays the analyzed frequency position on the display unit 160. At this time, since the analyzed frequency is a frequency between the notes B3 and C4, the sound spoken by the user is indicated by a point 171 in the space between B3 and C4 in FIG.

On the other hand, it is also possible to further distinguish the space between the semitone and the semitone, for example, by dividing the quarter between the semitone and semitone can be displayed in the corresponding position according to the degree of the analyzed frequency. In this case, finer fine sound correction is possible.

In step 7, the user adjusts the voice while looking at the screen displayed in step 6.

When the sound adjusted in the eighth and seventh steps coincides with the frequency of C4, the controller 120 moves the point 171 in FIG. 5 to the point 172 assigned to the note C4 as shown in FIG. At the same time, the dot is colored in the color assigned to C4 in FIG. 4 and the alphabetic note name 'C4' of the note is displayed.

By the above method, the user can visually confirm in real time that the sound being spoken is the frequency of the correct C4.

Embodiments of the present invention have been described above with reference to the accompanying drawings. However, it is to be noted that the present invention is not particularly limited only to the above-described embodiments, and as necessary, various modifications and changes can be made by those skilled in the art within the spirit and spirit of the appended claims.

As described above, according to the present invention, by analyzing and displaying the user's voice in real time, the user can visually check his / her wrong voice directly, thereby obtaining the effect of fast tone correction, and also temporal and spatial constraints. It has the advantage of being able to perform pitch exercises without it.

In addition, by repeatedly presenting a specific note to enable the user to repeatedly practice a weak note, it is possible to efficiently practice the correct pitch.

Claims (6)

An input unit for receiving a command of a user; A storage unit for storing frequency information on the reference sound of the score and screen configuration information to be displayed on the display unit; A speaker unit for outputting a reference sound selected by manipulation of the input unit according to the frequency information stored in the storage unit as an acoustic signal; A sound collector to input and collect sound from the outside; The frequency similarity is calculated by comparing the frequency of the sound collected by the sound collecting unit with the frequency of the reference sound selected by the input unit, and the display unit is loaded along with the frequency similarity by loading the screen configuration information stored in the storage unit. A control unit to transfer to the; And And a display unit for displaying the frequency similarity degree according to the screen configuration information transmitted from the controller. And the control unit displays the reference sound as a note on a score on the display screen of the display unit, and analyzes and displays the frequency similarity with the note. The method of claim 1, The frequency similarity level displayed together with the note indicates a difference between the frequency of the sound collected by the sound collecting unit and the frequency of the reference sound selected by the input unit in terms of scores, or And a frequency difference between the frequency of the sound collected by the sound collector and the reference sound selected by the input unit as an error rate based on the frequency of the reference sound. An input unit for receiving a command of a user; A storage unit for storing frequency information on the reference sound of the score and screen configuration information to be displayed on the display unit; A speaker unit for outputting a reference sound selected by manipulation of the input unit according to the frequency information stored in the storage unit as an acoustic signal; A sound collector to input and collect sound from the outside; Comparing the frequency of the sound collected by the sound collection unit with the frequency information on the reference sound selected by the input unit to calculate the frequency similarity, and load the screen configuration information stored in the storage unit with the frequency similarity A control unit for transmitting to the display unit; And And a display unit for displaying the frequency similarity degree according to the screen configuration information transmitted from the controller. The controller divides the pitch of a predetermined band into semitone intervals, arranges the markers representing the semitones in a geometric structure according to the height of the sound, analyzes the frequencies of the sound collected by the sound collector, and analyzes the frequencies. Tone correction device characterized in that the display at the corresponding position of the. The method of claim 3, The geometrical structure is a spiral trajectory, and the tone correction device, characterized in that a unique color is set in the marker representing each semitone. The method according to claim 3 or 4, And a space between successive halftones and semitones is further divided into predetermined equal parts to enable display according to the frequency between the continuous halftones and halftones. The method of claim 4, wherein When the frequency of the sound collected by the sound collection unit coincides with the frequency of the semitone, the marker indicating the matched semitone is colored in a unique color that is set, and the alphabetic note name of the semitone is displayed. Tone correction device.

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