KR101865449B1 - White noise output system and white noise output method - Google Patents

White noise output system and white noise output method Download PDF

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KR101865449B1
KR101865449B1 KR1020150080627A KR20150080627A KR101865449B1 KR 101865449 B1 KR101865449 B1 KR 101865449B1 KR 1020150080627 A KR1020150080627 A KR 1020150080627A KR 20150080627 A KR20150080627 A KR 20150080627A KR 101865449 B1 KR101865449 B1 KR 101865449B1
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output
white noise
signal
frequency
outputting
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KR1020150080627A
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Korean (ko)
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KR20160144174A (en
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여상국
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여상국
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general

Abstract

According to an aspect of the present invention, an audio signal generating unit 110 for generating and outputting a reference acoustic signal of a sinusoidal waveform for each frequency within an audible range; A white noise generating unit 120 for outputting a white noise signal; An amplifier 130 for amplifying each of the reference acoustic signals output from the audio signal generator 110 and the white noise signal output from the white noise generator 120 to a level that can be output to the outside; A speaker 140 for acoustically outputting each reference acoustic signal and a white noise signal amplified by the amplifier 130; And adjusts the output size of each reference sound signal according to the input signal of the operation unit 160 and adjusts the output size of each frequency of the white noise signal output from the white noise generator 120 according to the adjusted output size setting value And an equalizer 150 for converting the input signal to the amplifier 130 and outputting the converted signal to the amplifier 130.

Description

WHITE NOISE OUTPUT SYSTEM AND WHITE NOISE OUTPUT METHOD [0002]

The present invention relates to a white noise output system and a white noise output method, and more particularly, to a white noise output system and a white noise output method for amplifying a white noise signal generated by a white noise generation unit and outputting the amplified white noise signal to a speaker .

In general, white noise is known to provide beneficial effects such as improving concentration, relieving stress, reducing psychological stability and reducing ambient noise, and is widely used as a method of adding functions such as white silencer, smartphone, MP3, and concentration enhancer.

Such white noise utilizes a sound with a uniform and constant frequency range, such as a sound of a brook, a sound of a wave, a sound of a bird, a sound of a heartbeat, a conversation of a cafe, or a mechanical sound having a constant periodic waveform.

In this way, the white noise is output as various kinds of sound signals depending on the type. In the case of a user with tinnitus disease or sensitive ears, if the user hears the sound of a certain frequency, a sound such as a sound of a cicada may be heard, A feeling of white noise is disturbed, or the degree of tinnitus is increased.

Japanese Laid-Open Patent Publication No. 10-2013-0003103 (May 31, 2017), a concentration enhancer using white noise

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide an audio signal processing apparatus and method, in which the output magnitude of each frequency of a white noise signal can be adjusted according to the characteristics of a user to produce an acoustic output, And to provide a white noise output system and a white noise output method for providing a pleasant white noise listening environment.

Another object of the present invention is to adjust the output size of each frequency on the basis of the sinusoidal reference sound signal output from the audio signal generator and to adjust the output size of each frequency of the white noise signal according to the adjusted output size setting value A white noise output system and a white noise output method in which white noise optimized for individual characteristics can be heard by converting and outputting sound.

According to an aspect of the present invention, an audio signal generating unit 110 for generating and outputting a reference acoustic signal of a sinusoidal waveform for each frequency within an audible range; A white noise generating unit 120 for outputting a white noise signal; An amplifier 130 for amplifying each of the reference acoustic signals output from the audio signal generator 110 and the white noise signal output from the white noise generator 120 to a level that can be output to the outside; A speaker 140 for acoustically outputting each reference acoustic signal and a white noise signal amplified by the amplifier 130; And adjusts the output size of each reference sound signal according to the input signal of the operation unit 160 and adjusts the output size of each frequency of the white noise signal output from the white noise generator 120 according to the adjusted output size setting value And an equalizer 150 for converting the input signal to the amplifier 130 and outputting the converted signal to the amplifier 130.

According to another aspect of the present invention, there is further provided a music sound output unit 170 for outputting a pre-stored music sound signal to the equalizer 150. The equalizer 150 may adjust the output sound size And converts the output magnitude of each frequency of the music sound signal output from the music sound output unit 170 to output to the amplifier 130.

According to another aspect of the present invention, an output size setting value of each reference sound signal adjusted by the equalizer 150 is stored in the memory 181, and a white noise signal is converted according to the stored output size setting value, And a control unit 180 for outputting a control signal to the equalizer 150 to control the output of the white noise output system.

According to another aspect of the present invention, the operation unit 160 includes a user setting button 163 and a user selection button 164 for selecting a plurality of users, The output size setting value of the selected user among the plurality of output size setting values set according to the input signal of the user selection button 164, And controls the output amplitude of each frequency of the white noise signal output from the white noise generator 120 according to the output size setting value to be output to the amplifier 130. [ A white noise output system is provided.

According to still another aspect of the present invention, there is provided a method of generating a sound signal, the method comprising: generating a reference sound signal of a sine wave type for each frequency within an audible region using the audio signal generating unit 110; Amplifies each reference sound signal output from the audio signal generator 110 using the amplifier 130 and separately outputs each reference sound signal amplified by the amplifier 130 using the speaker 140 A reference sound output step S220; A reference sound adjusting step (S230) of adjusting an output size of each reference sound signal according to an input signal of the operating unit 160 using the equalizer 150; A white noise generating step S250 of generating a white noise signal using the white noise generating unit 120; And an output size of each frequency of the white noise signal output from the white noise generator 120 according to the output size set value adjusted through the reference sound adjustment step S230 using the equalizer 150 And a white noise output step (S251) of outputting the converted white noise signal by using the amplifier 130 and the speaker 140 (S251).

According to still another aspect of the present invention, there is provided a music sound transmitting step (S260) of transmitting a music sound signal to the equalizer (150) using a music sound output unit (170); And the output size of each frequency of the music sound signal output from the music sound output unit 170 according to the output size setting value adjusted through the reference sound adjustment step S230, And a musical sound output step (S261) of outputting the music sound signal converted by using the speaker 140 (step S261).

According to another aspect of the present invention, a user setting step S240 may include setting the output size setting value for each user according to an input signal of the user setting button 163; And the user selection button 164, and outputs the output size setting value of the selected user among the plurality of output size setting values set in accordance with the input signal of the user selection button 164, And a user selecting step (S241) of converting the output size of each frequency of the noise signal and outputting it to the amplifier (130).

As described above, according to the present invention,

First, since the output magnitude of each frequency of the white noise signal generated by the white noise generating unit 120 can be output in a state adjusted according to the characteristics of the user, it is possible to generate a feeling of irritation between the white noise and the ear It is possible to provide a more pleasant listening environment for white noise and to realize the effect of treating the dementia.

Secondly, in adjusting the output size of each frequency of the white noise signal, the user can hear the sine wave type reference sound signal output from the audio signal generating unit 110 to check whether the user has a tongue or an uncomfortable feeling The user can listen to the white noise optimized for the individual characteristics by selectively reducing or eliminating the output size of the reference sound of the tinnitus generating frequency.

Third, in addition to the white noise signal output from the white noise generating unit 120, a music sound signal such as music output from the music sound output unit 170 is output, and the outputted music sound signal is passed through an equalizer 150 It is possible to convert the output size of each frequency of the music sound signal according to the output size set value adjusted using the reference sound signal and to output sound by outputting sound of various frequencies. In addition to the white noise function, various sound sources can be comfortably heard, It is possible to increase the usability of the system.

Fourth, the operation unit 160 for outputting an input signal for operating the white noise output system includes a user setting button 163 and a user selection button 164 for selecting a plurality of users, The user selects and stores the output size set values adjusted for each user in accordance with the input signal of the setting button 163 and outputs the set size of the selected user among the plurality of output size set values set according to the input signal of the user selection button 164 The output size setting value is read out and the output size of each frequency of the white noise signal is converted and output according to the output size setting value so that it can be used for common use for a large number of users and the white noise Can be simplified.

1 is a block diagram showing a functional configuration of an analog white noise output system according to a preferred embodiment of the present invention;
FIG. 2 is a front view illustrating an external configuration of an analog white noise output system according to a preferred embodiment of the present invention. FIG.
3 is a block diagram illustrating a functional configuration of a digital white noise output system according to a preferred embodiment of the present invention.
4 is a front view illustrating an external configuration of a digital white noise output system according to a preferred embodiment of the present invention.
5 is a flowchart showing a procedure of a white noise output method using an analog white noise output system according to a preferred embodiment of the present invention.
6 is a flowchart illustrating a procedure of a white noise output method using a digital white noise output system according to a preferred embodiment of the present invention.

The objects, features and advantages of the present invention will become more apparent from the following detailed description. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

First, the configuration and function of the white noise output system 100 according to the preferred embodiment of the present invention will be described.

The white noise output system 100 according to the preferred embodiment of the present invention is a white noise output device capable of adjusting the output magnitude of each frequency of the white noise signal according to the characteristics of the user and outputting it acoustically, An audio signal generating unit 110, a white noise generating unit 120, an amplifier 130, a speaker 140 and an equalizer 150 as shown in FIG.

The audio signal generator 110 is an audio signal generator for providing reference data for converting a frequency characteristic of an acoustic signal output through the equalizer 150. The audio signal generator 110 generates a sinusoidal waveform And outputs the generated reference acoustic signal.

Here, the audio signal generator 110 outputs a reference sound signal, and outputs a pure sound corresponding to a frequency band of each of the octaves. The audio signal generator 110 generates a reference sound signal corresponding to a predetermined frequency A reference acoustic signal may be outputted or a reference acoustic signal for each frequency may be outputted in a manner of arbitrarily increasing or decreasing the frequency gradually in the range of 20 Hz to 20 kHz which is an audio frequency band by operating a frequency conversion switch have. The user can listen to the pure sound of each reference sound signal through the speaker 140 by outputting the sine wave reference sound signal for each frequency.

The white noise generator 120 is a device for outputting a white noise signal, and may be a data storage medium, preferably a white noise generator or a white noise signal.

In the case of the white noise generator, white noise of a specific waveform is generated according to the operation and transmitted to the equalizer 150. In the case of a data storage medium, a white noise signal, which is a source of noise based on the control signal, is transmitted to the equalizer 150 do.

The amplifier 130 amplifies the input acoustic signal in the form of a signal that can be output through the speaker 140. The amplifier 130 amplifies the reference acoustic signals output from the audio signal generator 110 and the white noise And outputs the amplified white noise signal to the speaker 140. The amplified white noise signal is amplified to a level that can output the white noise signal to the outside.

The speaker 140 outputs each reference sound signal and a white noise signal amplified by the amplifier 130 and outputs a sound signal to the user so that the user can listen to the sound signal in the technical field of the present invention such as a headset, An acoustic output means for outputting sound can be used.

The equalizer 150 is a sound adjusting means for adjusting the frequency characteristics of the white noise signal in a converted state so as to prevent the user from feeling a loud noise or an irritating noise on a user basis. And converts an output size of each frequency of the white noise signal output from the white noise generating unit 120 according to the adjusted output size setting value and outputs the output size to the amplifier 130.

2, a white noise output system 100 according to a preferred embodiment of the present invention includes an audio signal generator 110, a white noise generator 120, an amplifier 130 and an equalizer 150. In this case, an operation unit 160 for allowing the user to operate various setting and operation states of the white noise output system 100 is provided outside the case 190 .

Here, the operation unit 160 includes an equalizing operation button 161 for adjusting the output size of each frequency of the equalizer 150, a fine adjustment button 162 for fine adjustment of the output size, A user setting button 163 for matching and setting a size setting value, and a user selection button 164 for selecting any one of a plurality of users.

In the case of the equalizing operation button 161, ten operation buttons for dividing the audible frequency range by each octave such as 20 Hz to 40 Hz for one octave, 40 Hz to 80 Hz for 2 octaves, 10240 Hz to 20480 Hz for 10 octaves, And the equalizing operation button 161 corresponding to the octave may be operated by raising or lowering the equalizing operation button 161 so as to output and output the reference acoustic signal for each octave.

In addition, a speaker connector 165 for signal connection of a headset, an earphone, and an external speaker and a sound source connector 166 for inputting an external sound source may be disposed in the case 190.

Meanwhile, the white noise output system 100 according to the preferred embodiment of the present invention can enhance the usability of the system by outputting various sound contents such as music in addition to the function of outputting white noise.

1, the white noise output system 100 further includes a music sound output unit 170 for outputting a pre-stored music sound signal to the equalizer 150, and the equalizer 150 converts the output size of each frequency of the music sound signal output from the music sound output unit 170 according to the output size setting value adjusted through the reference sound signals and outputs the converted output size to the amplifier 130 . As a result, it is possible to listen to various sound sources comfortably in addition to the white noise function, thereby greatly increasing the usability of the white noise output system.

The white noise output system 100 according to the preferred embodiment of the present invention may be constructed in a digital system in addition to the analog system described above. 4 and 5 show functional and external configurations of a digital white noise output system 100 according to a preferred embodiment of the present invention.

4 and 5, a white noise output system 100 according to a preferred embodiment of the present invention stores an output size setting value of each reference sound signal adjusted by the equalizer 150 in a memory 181 And a control unit 180 for outputting a control signal to the equalizer 150 for controlling the white noise signal to be converted and output in accordance with the stored output size setting value.

The controller 180 may also be connected to the audio signal generator 110, the white noise generator 120, and the amplifier 130 in addition to the equalizer 150 to convert the overall operation state of the white noise output system 100 into a center Can be controlled.

The digital white noise output system 100 is also provided with a display 191 for outputting various images in addition to the operation unit 160 to control the output size of each reference sound signal by the equalizer 150 The equalizing operation button can be displayed as an image, and each operation button can be adjusted by touching the screen of the display using the touch panel.

In the meantime, when a plurality of users use the white noise output system 100 according to the preferred embodiment of the present invention, the individual listening characteristics are different for each user, and the reference sound signals are output every time the user changes, There may be inconveniences that must be set.

Accordingly, the white noise output system 100 according to the preferred embodiment of the present invention can save the output size setting value for each user and read and use the output size setting value according to the user's convenience.

The control unit 180 includes a user setting button 163 and a user selection button 164. The control unit 160 controls the operation of each user The output size setting value of the selected user is read out from among the plurality of output size setting values set according to the input signal of the user selection button 164, So that the output magnitude of each frequency of the white noise signal output from the white noise generator 120 is converted and output through the speaker 140. This makes it possible to use a common use for a large number of users and to simplify a setting method for outputting white noise according to individual characteristics.

Next, a white noise output method for outputting white noise optimized for a user-specific listening characteristic using the white noise output system 100 will be described.

As shown in FIG. 3, the white noise output method according to the preferred embodiment of the present invention includes a reference sound generation step S210, a reference sound output step S220, a reference sound adjustment step S230, a white noise generation step S250 And a white noise output step S251.

The reference sound generation step S210 is a step of generating and outputting a sinusoidal reference sound signal for each frequency within the audible region using the audio signal generation unit 110, A reference acoustic signal corresponding to a plurality of frequencies is output or a reference acoustic signal for each frequency is output in such a manner that the frequency is gradually increased or decreased within an audio frequency band of 20 Hz to 20 kHz.

The reference sound output step S220 amplifies each reference sound signal output from the audio signal generator 110 using the amplifier 130 and outputs the amplified reference sound signal to the speaker 130 using the speaker 140. [ By separately outputting the reference sound signals individually, the user can listen to the sound of the pure sound type output for each frequency.

The reference sound adjustment step S230 adjusts the output size of each reference sound signal according to the input signal of the operation unit 160 using the equalizer 150 so that the user can listen to each reference sound signal, By operating the equalizing operation button 161, the output size of the frequency can be arbitrarily adjusted.

The white noise generating step S250 is a step of generating a white noise signal using the white noise generator 120. The white noise generator 120 may generate a white noise of a specific waveform using the white noise generator and transmit the white noise to the equalizer 150, A white noise signal, which is a source of a sound source, may be transmitted to the equalizer 150 according to a control signal using a data storage medium storing a white noise source.

Meanwhile, the white noise output method according to the preferred embodiment of the present invention may include a music sound transmission step S260 and a music sound output step S261 to output various sound contents such as music in addition to the sound output function of white noise ). ≪ / RTI >

The musical sound transmission step S260 is a step of transmitting a music sound signal to the equalizer 150 using the music sound output unit 170. The music sound output step S261 may include a reference sound adjustment step S230, Converts the output magnitude of each frequency of the music sound signal output from the music sound output unit 170 according to the adjusted output size setting value through the amplifier 130 and the speaker 140, Sounds the music sound signal. As a result, it is possible to listen to various sound sources comfortably in addition to the white noise function, thereby greatly increasing the usability of the white noise output system.

6, when the digital white noise output system 100 is used, the white noise output method according to the preferred embodiment of the present invention may include the steps of: A user setting step S240 of setting the output size setting value separately for each of the plurality of output size setting values, and the output size setting value of the selected user among the plurality of output size setting values set according to the input signal of the user selecting button 164, (S241) of converting the output size of each frequency of the white noise signal output from the white noise generator 120 according to the output size set value and outputting the converted output size to the amplifier 130 .

Accordingly, the white noise output system 100 can be commonly used for a plurality of users, and a setting method for outputting white noise according to individual characteristics can be simplified.

The white noise output system 100 according to the preferred embodiment of the present invention as described above and the white noise output method according to the present invention have the same advantages as those of the white noise output system 100, The output size of each frequency can be adjusted according to the characteristics of the user, so that it is possible to output sound, so that it is possible to provide a more pleasant listening environment of white noise by preventing the occurrence of irritation on the ear or the ear between the white noise hearing. Effect can be realized.

In addition, when adjusting the output magnitude of each frequency of the white noise signal, the user can hear the sine wave type reference sound signal output from the audio signal generation unit 110 to check whether the user has a tinnitus or an unpleasant feeling The user can listen to the white noise optimized for the individual characteristics by selectively reducing or eliminating the output size of the reference sound of the tinnitus generating frequency.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be clear to those who have knowledge.

100 ... White noise output system 110 ... Audio signal generator
120 ... white noise generator 130 ... amplifier
140 ... speaker 150 ... equalizer
160 ... operating section 170 ... musical sound output section
180 ... control unit
S210 ... Reference sound generation step S220 ... Reference sound output step
S230 ... Reference sound adjustment step S240 ... User setting step
S241 ... user selection step S250 ... white noise generation step
S251 ... white noise output step S260 ... musical sound transmission step
S261 ... Music sound output stage

Claims (4)

An audio signal generation unit 110 for generating and outputting a sinusoidal reference sound signal for each frequency while gradually increasing or decreasing the frequency within a range of 20 Hz to 20 kHz according to the operation of the frequency conversion switch;
A white noise generating unit 120 for outputting a white noise signal;
An amplifier 130 for amplifying each reference acoustic signal output from the audio signal generator 110 and the white noise signal output from the white noise generator 120 to a level that can be output to the outside;
A speaker 140 for acoustically outputting a reference acoustic signal and a white noise signal amplified by the amplifier 130;
The white noise generating unit 120 adjusts the output level of the specific reference acoustic signal to be reduced in accordance with the input signal of the operation unit 160 by the user, An equalizer 150 which adjusts the magnitude of the output of each frequency of the white noise signal outputted from the equalizer 150 and outputs it to the amplifier 130;
A memory 181 for storing an output size setting value of each reference sound signal adjusted by the equalizer 150 and a control for controlling the output size of the white noise signal according to the stored output size setting value, A controller 180 for outputting a signal to the equalizer 150; And
And a music sound output unit 170 for outputting the pre-stored music sound signals to the equalizer 150,
The equalizer 150 adjusts the magnitude of each frequency of the music sound signal output from the music sound output unit 170 according to the adjusted output magnitude setting value and outputs it to the amplifier 130,
The operation unit 160 includes a user setting button 163 and a user selection button 164 for selecting a plurality of users and the control unit 180 controls the operation of each user The output size setting values of the selected user are read out from the plurality of output size setting values stored according to the input signal of the user selection button 164, And controls the output size of each frequency of the white noise signal output from the white noise generating unit 120 to be output to the amplifier 130 according to the set value. delete delete delete
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KR101057661B1 (en) * 2011-01-07 2011-08-18 강원대학교산학협력단 Apparatus and method for healing ear ringing with music

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