KR101551666B1 - A Hearing Aid Capable of Profiling and Adjusting of Noise and Hearing Aid System for Adjusting Noise Using the Same - Google Patents

A Hearing Aid Capable of Profiling and Adjusting of Noise and Hearing Aid System for Adjusting Noise Using the Same Download PDF

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KR101551666B1
KR101551666B1 KR1020150043972A KR20150043972A KR101551666B1 KR 101551666 B1 KR101551666 B1 KR 101551666B1 KR 1020150043972 A KR1020150043972 A KR 1020150043972A KR 20150043972 A KR20150043972 A KR 20150043972A KR 101551666 B1 KR101551666 B1 KR 101551666B1
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South Korea
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noise
profile
hearing aid
noise profile
module
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KR1020150043972A
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Korean (ko)
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유정기
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주식회사 더열림
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/30—Monitoring or testing of hearing aids, e.g. functioning, settings, battery power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Neurosurgery (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

The present invention relates to a hearing aid capable of profiling a noise and applying the profile and a noise application hearing aid system using the same and, more specifically, to a hearing aid and a noise application hearing aid system including the hearing aid and a server. The hearing aid includes a noise profiling unit which extracts a noise from a sound signal inputted to a mike and profiles the noise and a noise correcting unit which corrects the sound signal by applying the noise profiled by the noise profiling unit, thereby providing the optimum sound with the noise reflected through the hearing aid by reflecting the surround noise in real time and applying the noise to the sound. The noise profiling unit includes: a noise extracting module which extracts the noise from the sound signal inputted from the mike; a noise analyzing module which analyzes the noise extracted by the noise extracting module; and a noise profile generating module which generates a noise profile by using the noise data analyzed by the noise analyzing module. The noise extracting module removes a sound signal inputted from an external mike from the sound signal inputted from the mike and extracts the noise, thereby enabling for accurate reflection of the noise.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hearing aid capable of profiling and applying noise, and a noise-based hearing aid system using the same. 2. Description of the Related Art [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hearing aid capable of profiling and applying noise, and a noise-based hearing aid system using the same. More specifically, the present invention relates to a noise profiling unit for extracting and profiling noise from a sound signal input to a microphone, And a noise corrector for correcting the sound signal by applying the profiled noise to the speaker so that the noise generated in the surroundings is reflected in real time to be applied to the sound so that the optimal sound reflected by the noise can be provided through the hearing aid , A noise profile unit may include a noise extraction module for extracting noise from a sound signal input from a microphone, a noise analysis module for analyzing noise extracted by the noise extraction module, and a noise profile using noise data analyzed by the noise analysis module. produce The noise extraction module includes a hearing aid that extracts noise from a sound signal input from a microphone and extracts noise from an external microphone to enable accurate reflection of noise, To a noise-based hearing aid system.

Millions of people worldwide now suffer from hearing impairment, many of whom are unaware of their hearing loss. Reduced hearing abilities can be due to a variety of factors including age, health, occupation, injury and illness. Hearing loss can greatly reduce the quality of life, impair the relationship, and reduce access to employment. In recent years, the use of sound equipment, the proportion of elderly people and the increase in the noise environment have increased the number of hearing impaired people, and the demand for hearing aids has been rapidly increasing and the development of high performance digital hearing aids Is accelerating.

Hearing aids are designed to reduce or eliminate the noise of the input sound signal in order to provide a high quality sound to users according to various noise environments. In the conventional hearing aids, . That is, the hearing aid performs a fitting to provide a high quality sound to the user. At this time, fitting software sets the degree of noise reduction (N) in advance, and according to the degree, The noise profile is applied so that the noise reduction is performed in a batch.

However, if noise is removed or reduced according to the noise reduction degree or the noise profile determined in advance, the noise can not be properly reduced in a place where there is a lot of noise, so that the sound can not be heard well. You will not hear a clear sound. In addition, although a hearing aid which enables fitting by the user himself has been developed as in the following Patent Document, it is also impossible to correct the sound by reflecting ambient noise in real time, and it is not possible to perform fine fitting according to a limited menu.

Therefore, it is necessary to develop a hearing aid that can measure the ambient noise in real time, reflect the noise, and reduce the noise to provide the optimum sound.

(Patent Literature)

Korean Registered Patent No. 10-1381021 (registered on Apr. 27, 2013) "Self-Fitting System and Method for Hearing Aid Using Portable Terminal"

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

The present invention relates to a microphone for inputting an external sound, a signal processing section for processing a signal input from a microphone, a receiver for reproducing a signal processed by the signal processing section, a memory for storing various information necessary for operation of the hearing aid, A noise profiling unit for extracting and profiling noise from the signal and a noise correction unit for correcting the sound signal by applying a noise profiled by the noise profiling unit so as to reflect the noise generated in the surroundings in real time, So that it is possible to provide an optimal sound reflecting the noise through the hearing aid, and to provide a hearing aid capable of applying the noise.

The present invention relates to a noise extraction module for extracting noise from a sound signal input from a microphone, a noise analysis module for analyzing noise extracted by the noise extraction module, and a noise profile using noise data analyzed by the noise analysis module And a noise profile generating unit including a noise profile generating module to analyze the noise to generate a noise profile regardless of the position of the user so that noise can be profiled to provide a sound reflecting the actual ambient noise as much as possible, And to provide a hearing aid which can be applied thereto.

The noise extraction module removes a sound signal input from an external microphone from a sound signal input from a microphone, and outputs the noise signal to the noise extracting module, And to provide a hearing aid capable of profiling and applying the noise to enable accurate reflection of noise.

The present invention relates to a noise profile search unit for searching for a noise profile similar to a noise analyzed by a noise analysis module when a noise profile can not be generated by the noise profile generation module, The present invention aims to provide a hearing aid capable of profiling noise and improving its noise removal performance by allowing the most similar noise profile to be reflected in sound.

The present invention relates to a noise profile applying module for applying a noise profile generated by a noise profile forming unit or retrieved by a noise profile searching unit to correct a sound signal, And a noise elimination module including a noise elimination module for eliminating the noise of the sound signal by using the noise elimination module, so that noise can be profiled to provide a noise with a minimum noise even when the noise profile can not be generated or retrieved, And to provide a hearing aid which can be applied thereto.

The present invention includes a noise profile search unit having an internal search module for searching for a noise profile stored in a memory, and further includes a noise profiling unit for quickly providing a sound reflecting the noise when an irregular noise environment is set, It is an object of the present invention to provide a hearing aid which can be applied.

The present invention relates to a hearing aid which receives a surrounding sound and converts the sound into a sound audible by the user, And a server for communicating with a hearing aid and storing a noise profile, wherein a noise profile is shared with other users, thereby enabling a noise profile to be applied to various irregular noise environments .

A noise profile search unit includes an external search module for searching a noise profile stored in a server through a communication unit, so that sharing, searching, and application of a noise profile can be quickly performed by using a hearing aid having a communication unit capable of wired / And to provide a noise-canceling hearing aid system.

The present invention includes a hearing aid that includes a noise profile storage unit for storing a noise profile generated by a noise profile generation module or retrieved by an external search module in a memory, so that rapid application of a noise profile when placed in a similar irregular noise environment The present invention relates to a noise-canceling hearing aid system.

The present invention includes a noise profile storage unit for storing a noise profile generated by a noise profile generation module in a server so that the noise profile can be easily expanded so that noise can be applied to various environments The object of the present invention is to provide a hearing aid system.

In order to achieve the above object, the present invention is implemented by the following embodiments.

According to an embodiment of the present invention, a hearing aid capable of profiling and applying noise according to the present invention includes a microphone for inputting an external sound, a signal processing unit for processing a signal input from the microphone, A memory for storing various information necessary for operation of the hearing aid; a noise profiling unit for extracting and profiling noise from a sound signal input to the microphone; a noise profile unit for applying noise profiled by the noise profiling unit And a noise corrector for correcting the sound signal.

According to another embodiment of the present invention, there is provided a hearing aid capable of profiling and applying noise according to the present invention, wherein the noise profiling unit comprises: a noise extraction module for extracting noise from a sound signal input from the microphone; A noise analysis module for analyzing the noise extracted by the module, and a noise profile generation module for generating a noise profile using the noise data analyzed by the noise analysis module.

According to another embodiment of the present invention, there is provided a hearing aid capable of profiling and applying noise according to the present invention, wherein the hearing aid is connected to a hearing aid separately from the microphone, And the noise extraction module extracts noise from the sound signal input from the microphone by removing the sound signal input from the external microphone.

According to still another embodiment of the present invention, the hearing aid capable of profiling and applying the noise according to the present invention includes a noise analysis module for analyzing the noise analyzed by the noise analysis module when the noise profile can not be generated by the noise profile generation module And a noise profile search unit for searching for a similar noise profile.

According to another embodiment of the present invention, there is provided a hearing aid capable of profiling and applying noise according to the present invention, wherein the noise corrector is configured to generate a noise profile generated by the noise profiling unit or detected by the noise profile searching unit And a noise batch removal module for removing a noise of a sound signal by using a noise removal value stored in the memory when a noise profile is not generated or detected, do.

According to another embodiment of the present invention, there is provided a hearing aid capable of profiling and applying noise according to the present invention, wherein the noise profile searching unit includes an internal search module for searching for a noise profile stored in the memory do.

According to another embodiment of the present invention, a noise-based hearing aid system according to the present invention includes: a hearing aid which receives ambient sounds and converts the sound into sounds that the user can hear; And a server capable of communicating with the hearing aid and storing a noise profile.

According to another embodiment of the present invention, in the noise-assisted hearing aid system according to the present invention, the hearing aid includes a communication unit capable of wired / wireless communication with the server, and the noise profile retrieval unit stores And an external search module for searching for a noise profile.

According to another embodiment of the present invention, in a noisy hearing aid system according to the present invention, the hearing aid includes a noise profile generated by the noise profile generation module or stored in the memory, And a storage unit.

According to another embodiment of the present invention, in the noise-based hearing aid system according to the present invention, the noise profile storage unit stores the noise profile generated by the noise profile generation module in the server.

The present invention can obtain the following effects by the above-described embodiment, the constitution described below, the combination, and the use relationship.

The present invention relates to a microphone for inputting an external sound, a signal processing section for processing a signal input from a microphone, a receiver for reproducing a signal processed by the signal processing section, a memory for storing various information necessary for operation of the hearing aid, A noise profiling unit for extracting and profiling noise from the signal and a noise correction unit for correcting the sound signal by applying a noise profiled by the noise profiling unit so as to reflect the noise generated in the surroundings in real time, So that it is possible to provide an optimal sound reflecting the noise through the hearing aid.

The present invention relates to a noise extraction module for extracting noise from a sound signal input from a microphone, a noise analysis module for analyzing noise extracted by the noise extraction module, and a noise profile using noise data analyzed by the noise analysis module And a noise profile generating unit including a noise profile generating module to analyze the noise regardless of the position of the user to generate a noise profile, thereby providing a sound reflecting the actual ambient noise to the maximum.

The noise extraction module removes a sound signal input from an external microphone from a sound signal input from a microphone, and outputs the noise signal to the noise extracting module, So that it is possible to accurately reflect the noise.

The present invention relates to a noise profile search unit for searching for a noise profile similar to a noise analyzed by a noise analysis module when a noise profile can not be generated by the noise profile generation module, It is possible to improve the noise canceling performance by allowing the most similar noise profile to be reflected in the sound.

The present invention relates to a noise profile applying module for applying a noise profile generated by a noise profile forming unit or retrieved by a noise profile searching unit to correct a sound signal, And a noise elimination module including a noise elimination module for eliminating noise of a sound signal by using the noise elimination module. Thus, even when a noise profile can not be generated or searched, a sound with a minimum noise can be provided.

The present invention includes a noise profile search unit having an internal search module for searching for a noise profile stored in a memory. When the noise profile is placed in an irregular noise environment, the sound reflecting the noise can be quickly provided.

The present invention relates to a hearing aid which receives a surrounding sound and converts the sound into a sound audible by the user, The noise profile can be applied to various irregular noise environments by allowing the noise profile to be shared with other users including the server that can communicate with the hearing aid and the noise profile is stored.

A noise profile search unit includes an external search module for searching a noise profile stored in a server through a communication unit, so that sharing, searching, and application of a noise profile can be quickly performed by using a hearing aid having a communication unit capable of wired / So that it can be achieved.

The present invention includes a hearing aid that includes a noise profile storage unit for storing a noise profile generated by a noise profile generation module or retrieved by an external search module in a memory, so that rapid application of a noise profile when placed in a similar irregular noise environment .

The present invention includes a noise profile storage unit for storing a noise profile generated by a noise profile generation module in a server, so that expansion of a noise profile is facilitated, thereby making it possible to apply noise to a variety of environments have.

1 is a view for explaining a fitting method of a hearing aid having a conventional noise reduction function.
2 is a block diagram illustrating a configuration of a noise-based hearing aid system according to an embodiment of the present invention.
Fig. 3 is a block diagram showing the configuration of the hearing aid shown in Fig. 2
Fig. 4 is a block diagram showing the configuration of the noise profiling unit of Fig. 3
FIG. 5 is a reference diagram for explaining the noise profile forming unit of FIG.
6 is a block diagram showing a configuration of the noise profile search unit of FIG. 3
Fig. 7 is a block diagram showing the configuration of the noise corrector of Fig. 3
8 is a flowchart for explaining a noise applying method using a noise-based hearing aid system according to an embodiment of the present invention
9 is a view showing an example of using an external microphone according to another embodiment of the present invention

Hereinafter, preferred embodiments of a hearing aid capable of profiling and applying noise according to the present invention and a noise-based hearing aid system using the same will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements, rather than excluding other elements, unless specifically stated otherwise.

2 to 9, the noise-based hearing aid system includes a hearing aid 1 for receiving ambient sounds and converting the sounds into sounds that can be heard by a user, Wow; And a server (3) capable of communicating with the hearing aid (1) and storing a noise profile. The noise-assisted hearing aid system according to the present invention allows a user to collect noise around the user from time to time using the external microphone 11, thereby making it possible to remove noise from an input signal by profiling surrounding noise, It is possible to retrieve a similar noise profile from the inside of the hearing aid 1 or from the external server 3 of the hearing aid 1 in an irregular noise environment which is hard to make it possible to remove noise as close as possible to the actual noise from the input signal, In addition, when it is difficult, the noise can be removed by using the noise cancellation value stored in advance, and the generated noise profile is automatically stored in the server 3 so as to be shared with other users, So that near noise can be removed do.

The hearing aid 1 is worn on a user's ear and receives a surrounding sound to convert it into a sound that can be heard by the user. The hearing aid 1 has a function of removing noise of the surrounding environment, . As described above, a conventional hearing aid having a function of removing ambient noise has been generalized. However, as shown in FIG. 1, noise reduction values are collectively set or noise profiles are stored at an initial stage, So that it is impossible to reflect the noise of the surrounding environment which changes from time to time, and thus there is a limit to providing an optimal sound. Therefore, in the present invention, the noise of the surrounding environment is collected from time to time and the noise profile can be generated through the noise profile, so that the noise, which changes from time to time, can be immediately reflected on the sound. In addition, it is possible to search and apply a similar noise profile, so that even in an irregular noise environment, a noise profile that is most similar to actual noise can be applied to provide an optimum sound. 3, the hearing aid 1 includes a microphone 10 to which an external sound is input, an external microphone 11 connected to the hearing aid 1 to separately receive and transmit a target sound, A receiver 13 for reproducing the signal processed by the signal processor 12 and various information necessary for the operation of the hearing aid 1 are stored A noise profiling unit 16 for extracting and profiling noise from a sound signal input to the microphone 10, a noise profile generating unit 16 for generating a noise profile, A noise profile search unit 17 for searching for a similar noise profile when no noise can be generated, a noise profile from a generated noise profile or a preset noise cancellation value, And a noise correction unit 18, the noise profile storage unit 19 to store the noise profiles.

The microphone 10 is located outside the hearing aid mounted on the user's ear and receives analog signals around the ear and transmits the received analog signal to the signal processing unit 12. [

The external microphone 11 is connected to the hearing aid 1 so as to be able to receive a sound separately from the microphone 10 formed integrally with the hearing aid 1 and can be connected to the hearing aid 1 either wired or wirelessly Can be connected. The external microphone 11 is connected to the hearing aid 1 so as to approach the target sound to be heard and the sound input from the external microphone 11 is transmitted to the signal processing unit 12 and converted into a digital signal And is removed from the input signal input from the microphone 10 by the noise extraction module 161, which will be described later, of the noise profiling unit 16 so that noise can be extracted.

In addition, the external microphone 11 is not provided separately, and may be configured to use a portable terminal 111 such as a smart phone possessed by a user as shown in FIG. The sound S inputted through the portable terminal 111 can be received by the portable terminal 111 through the sound input portion included in the portable terminal 111, And the noise can be transmitted to the signal processing unit 12 through the wireless communication between the wireless module and the communication unit 15. The noise extraction module 161 of the noise profiling unit 16, 10 so that the noise can be extracted.

The signal processing unit 12 converts an analog sound signal received from the microphone 10 into a digital signal, performs signal processing, and converts the analog sound signal into an analog signal to be transmitted to the receiver 13. Accordingly, the signal processing unit 12 may have a configuration of an analog-to-digital converter (ADC), a digital signal processor (DSP), a digital-to-analog converter (DAC) The signal processing unit 12 converts the analog sound received from the external microphone 11 into a digital signal and transmits the digital signal to the noise profiling unit 16. The noise correction unit 18 adjusts the noise profile, The noise due to the noise removal value is removed, so that the sound can be transmitted to the receiver 13.

The receiver 13 reproduces an analog signal transmitted from the signal processing unit 12 as an audible signal so that the user can listen to the analog signal.

The memory 14 is configured to store various information necessary for the operation of the hearing aid, and the noise profile for various noise can be stored. The noise profile previously set by the supplier of the hearing aid can be stored in the memory 14. The noise profile generated by the noise profiling unit 16 and the noise profile retrieved by the external search module 172 are stored . However, the noise profile stored in the memory 14 is applied when the noise profile is not generated by the noise profiling unit 16, and it is priority to apply the noise profile generated from the ambient noise.

The communication unit 15 is configured to be capable of performing wired / wireless communication with the server 3, and preferably includes wireless communication modules such as Wi-Fi, 3G, and LTE to enable wireless communication. Accordingly, when there is no similar noise profile in the memory 14, the noise profile stored in the server 3 may be searched to apply a similar noise profile, and the noise generated by the noise profiling unit 16 The profile can be stored in the server 3 and shared with other users, thereby making it possible to apply a noise profile to various irregular noise environments. The communication unit 15 includes a proximity wireless communication module such as Bluetooth to allow wireless communication with the external microphone 11 so that a signal input from the external microphone 11 is transmitted to the hearing aid 1, As shown in FIG. Particularly, the target signal input to the portable terminal 111 of the user can be transmitted to the signal processing unit 12 through the communication unit 15, thereby making it possible to eliminate the noise.

The noise profiling unit 16 is configured to extract and analyze noise from a sound signal input from the microphone 10 and generate a noise profile. As shown in FIG. 4, A noise analysis module 162 for analyzing the noise extracted by the noise extraction module 161, and a noise analysis module 162 for analyzing the noise data analyzed by the noise analysis module 162 And a noise profile generation module 163 for generating a noise profile.

The noise extraction module 161 is configured to extract noise from a signal input from the microphone 10. The noise extraction module 161 extracts direct noise according to the ambient noise environment which changes from time to time and is reflected in the sound provided from the hearing aid 1 The external microphone 11 is used. The user connects the external microphone 11 with the hearing aid 1 by wire or wireless, and positions the external microphone 11 close to the target sound. Therefore, only the target sound to be almost heard is inputted to the hearing aid 1 through the external microphone 11, and the noise is extracted by using the sound transmitted through the external microphone 11. In other words, when the target sound transmitted through the external microphone 11 is removed from the sound signal input from the microphone 10, only the noise signal is left, so that the noise can be extracted. The noise signal thus extracted is converted into data by the noise analysis module 162.

The noise analysis module 162 analyzes the noise signal extracted by the noise extraction module 161 and converts the noise signal into data. As shown in FIG. 5, the noise analysis module 162 analyzes a period T of a noise signal, The minimum size a1, the maximum size a2 and the average size a3 of the noise signal and the frequencies f1, f2 and f3 at this time are also converted into data. Therefore, when the noise profile is generated by the noise profile generation module 163 based on the data of the noise signal analyzed by the noise analysis module 162 and the noise profile is very irregular and the noise profile can not be generated The noise profile searching unit 17 can search the noise profile based on the data analyzed by the noise analysis module 162. [

The noise profile generation module 163 is configured to generate a noise profile based on the data of the noise signal analyzed by the noise analysis module 162. For example, the noise profile generation module 163 specifies the size of the noise by frequency, Or the repeatability of the noise is specified so that the sound of a certain size can be reduced at regular intervals. Therefore, in order for the noise profile to be generated by the noise profile generation module 163, the noise must have a certain degree of regularity, and the noise signal is irregular enough to generate a noise profile by the noise profile generation module 163. [ A similar noise profile stored in the memory 14 or the server 3 is searched to correct the noise, and in the case of difficulty, the noise removal value stored in the memory 14 is applied, Is removed. The noise profile generated by the noise profile generation module 163 is stored in the server 3 via the communication unit 15 so that it can be shared with other users. Even if a noise profile can not be formed, The noise profile can be applied to the noise of various environments.

If the noise profile generation module 163 can not generate a noise profile, the noise profile search module 17 searches the memory 14 or the server 3 and transmits the noise profile to the noise analysis module 162 And a noise profile having similarity to data of the analyzed noise by a predetermined degree or more can be found and applied. Accordingly, it is possible to apply a similar noise profile even when the noise profile can not be generated due to irregularity of the noise signal, thereby making it possible to remove the noise which is as close as possible to the actual environment. The minimum size a1, the maximum size a2 and the average size a3 of the noise signal among the data analyzed by the noise analysis module 162 and the frequencies f1, f2, f3, A noise profile having a matching ratio equal to or greater than a certain level is searched for, and the noise is corrected using the noise profile. The noise profile searching unit 17 first searches the noise profile in the memory 14 in the hearing aid 1 and if the noise profile having a matching rate equal to or higher than a certain degree is not found, (3) to retrieve the noise profile stored by another user or supplier. Accordingly, the noise profile search unit 17 includes an internal search module 171 for searching for noise profiles in the memory 14 and an external search module 172 for searching for noise profiles in the server 3.

If the noise profile is not generated by the noise profile generation module 163, the internal search module 171 searches the memory 14 to find the data of the noise signal analyzed by the noise analysis module 162, Of the noise profile. Since the noise profile stored by the provider, the noise profile applied by searching the server 3, and the noise profile generated by the noise profile generation module 163 are accumulated and stored in the memory 14 as described above, Over time, noise profiles for various noise environments can be generated. If no noise profile is detected by the internal search module 171, the external search module 172 searches the server 3.

The external search module 172 searches the server 3 for a similar noise profile if a similar noise profile is not retrieved in the memory 14 by the internal search module 171. [ Since the noise profile generated by the provider or other user is stored in the server 3 in a cumulative manner, it is possible to search for more various noise profiles than the memory 14. When a similar noise profile is retrieved by the external search module 172, the noise is removed according to the noise profile retrieved by the noise corrector 18, the retrieved noise profile is stored in the memory 14, So that the noise profile can be detected and applied more quickly.

The noise correcting unit 18 corrects the noise by using the noise profile generated by the noise profile generating module 163 or the noise profile retrieved by the noise profile searching unit 17, When noise is generated or retrieved in the memory 14, it is difficult to perform noise processing such as noise elimination at a predetermined interval, or noise generation by the noise elimination value stored in the memory 14, So that a minimum amount of noise can be removed. 7, the noise corrector 18 applies a noise profile generated by the noise profile section 16 or the noise profile retrieved by the noise profile search section 17 so that the sound signal is corrected A noise profile application module 181 and a noise batch removal module 182 for removing noise of a sound signal using a noise removal value stored in the memory 14 when a noise profile is not generated or detected.

The noise profile applying module 181 may generate a noise profile by the noise profile generating module 161 of the noise profiling unit 16 or generate a noise profile by the noise profile searching unit 17, If a profile is searched, that is, a similar noise profile is retrieved in the memory 14 by the internal search module 171, or a similar noise profile is retrieved in the server 3 by the external search module 172 , And noise is removed from the sound signal input from the microphone 10 by the generated or searched noise profile. Illustratively, as described above, the sound signal inputted from the microphone 10 may be processed to remove noise of a certain size for each frequency, or to remove noise at a predetermined interval. However, the noise can be profiled by various parameters and regularity so that the noise can be removed.

The noise batch removal module 182 can not generate a noise profile by the noise profile generation module 161 and can not search for a similar noise profile by the internal search module 171 and the external search module 172 A predetermined value is collectively removed from the sound signal input from the microphone 10 by applying a noise removal value stored in the memory 14 in advance. Thus, a minimum noise quality is ensured by ensuring that the noise is very irregular so that a noise profile is generated or a minimum noise cancellation is made even if a similar noise profile can not be found.

The noise profile storage unit 19 is configured to store a generated or retrieved noise profile, and includes a noise profile generated by the noise profile generation module 163, a noise profile generated by a similar noise profile The noise profile is stored in the memory 14 and the noise profile generated by the noise profile generation module 163 is also stored in the server 3 so that the noise profile is shared with other users. Accordingly, it is possible to extend the noise profile that can be searched with a similar noise profile so that the noise profile can be applied to the irregular noise, thereby precisely eliminating the noise of various environments. The noise profile Is stored in the memory 14, it becomes possible to quickly search for the noise profile when the noise environment is later placed in a similar noise environment.

The server 3 stores various noise profiles and is capable of performing wired / wireless communication with the hearing aid 1, and preferably enables wireless communication with the hearing aid 1. The noise profile stored in the server 3 may be stored by the supplier and may also be a noise profile generated by another user. Therefore, the noise profile for various environments is stored in the server 3 by the various users so that they are shared among the users, so that the possibility that the noise profile for the similar noise environment is searched by the search even when the noise profile is not generated is increased do. The noise profile stored in the server 3 can be searched and applied by the external search module 172. When the applied noise profile is stored in the memory 14 and is later placed in a similar noise environment, So that it can be applied quickly.

Referring to FIG. 8, a method of applying noise using a noise-based hearing aid system according to an embodiment of the present invention includes extracting noise from a sound signal input from the microphone 10, A noise profile searching step (S2) of searching for a similar noise profile when the noise is not profiled by the noise profiling step (S1); a noise profile searching step (S2) A noise profile storing step (S3) of storing the noise profile in a memory (14) when a noise profile or a similar noise profile is searched in the external server (3) during the noise profile searching step (S2) Or applying a noise profile retrieved in the noise profile search step (S2) And a noise correction step (S4) for eliminating noise all at once by applying a preset noise removal value when no noise profile is generated or searched.

The noise profiling step S1 is a step of extracting noise from a signal input from the microphone 10 and analyzing the noise to profile the noise. The noise profiling step S11 includes noise extraction step S11 for extracting noise, A noise analysis step S12 for analyzing and converting the noise extracted by the noise analysis step S11, and a noise profile generation step S13 for generating a noise profile from the noise data analyzed by the noise analysis step S12.

The noise extraction step S11 is a step of extracting noise from a sound signal input from the microphone 10. The noise extraction step S11 is a step of extracting noise from the sound signal input from the microphone 10 and using the external microphone 11 as described above, The sound signal input from the external microphone 11 is removed to extract noise.

The noise analysis step S12 is a step of analyzing the noise signal extracted in the noise extraction step S11 and converting the noise signal to data. The noise analysis step S12 is a step of data conversion of the noise period T, signal size, frequency, The noise data is converted into data by converting data of a minimum size a1, a maximum size a2, an average size a3 and frequencies f1, f2 and f3 at this time into data of the base data in the noise profile generation step S13 , And is used as a reference value for searching for a noise profile in the noise profile searching step (S2). The values are exemplary and may be varied and used with various variables and reference values.

The noise profile generation step S13 is a process of generating a noise profile by analyzing characteristics based on the period T of the noise analyzed by the noise analysis step S12, the signal size, frequency, It is possible to reduce the sound by specifying the size of the sound, or by specifying the repeatability of the noise. However, the present invention is not limited to this, and the noise profile may be generated by specifying the regularity of various variables. The noise profile generated in the noise profile generation step S13 is stored in the memory 14 and the server 3 and is shared with other users, and noise is removed in the noise correction step S4.

The noise profile searching step S2 is a step of searching for a similar noise profile when the noise profile can not be generated in the noise profile generating step S13. The noise profile searching step S2 is a step of searching for a noise value in the noise analysis step S12, A noise profile having a matching ratio equal to or greater than a certain level is searched based on the minimum size a1 of the noise signal, the maximum size a2, the average size a3 and the frequencies f1, f2 and f3 at this time. Therefore, although the noise profile can not be generated due to the irregularity of the noise signal, the noise profile having a matching ratio equal to or higher than a predetermined level with respect to the noise signal is searched for and applied, so that the noise similar to the actual noise can be removed. The noise profile searching step S2 includes an internal searching step S21 for searching a noise profile stored in the memory 14 of the hearing aid 1 and an external searching step S22 for searching a noise profile stored in the server 3 ).

If the noise profile can not be generated in the noise profile generation step S13, the internal search step S21 searches the memory 14 to find a matching rate equal to or higher than a predetermined level of noise data analysis in the noise analysis module S12 And when a similar noise profile is searched, the noise is removed according to the noise profile retrieved in the noise correction step S4.

If it is not possible to search for a noise profile having a matching ratio equal to or higher than a certain level in the internal search step S21, the external searching step S22 searches the server 3 connected through the communication unit 15 for a similar noise profile Since the noise profile generated by the supplier or another user is stored in the server 3, even if the noise profile can not be generated due to noise irregularity, the noise profile can be applied to the server 3 as much as possible Thereby making it possible to eliminate noise close to the actual noise. If a similar noise profile is searched in the external search step S22, the noise profile is stored in the memory 14 and used for noise removal of the input signal in the noise correction step S4.

The noise profile storing step S3 may include storing the noise profile generated in the noise profile creating step S13 or the noise profile retrieved in the external searching step S22 in the memory 14, S13) to the server (3), storing the generated noise profile in the server (3) so that the noise profile is shared with other users, and the external search step S22 are stored in the memory 14 so that the application of the noise profile can be rapidly performed in a similar environment.

The noise correction step S4 is a step of removing noise from a sound signal input from the microphone 10, and includes a noise profile applying step S41 for removing noise by applying a noise profile generated or searched for, And a noise batch removal step (S42) for removing noise by the set noise elimination value.

The noise profile applying step S41 is a step of removing noise by the noise profile generated in the normal noise profile generating step S13 or the noise profile searched in the noise profile searching step S2, Accordingly, it is possible to reduce the sound by specifying the size of the noise according to the frequency, or to specify the repeatability of the noise, so that the sound of a certain size can be reduced at regular intervals. However, as described above, the noise profile can be generated by various parameters and criteria.

If the noise profile is not generated in the noise profile generating step 13 and the noise profile is not searched in the noise profile searching step S 2, So that noise can be removed in a lump.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Should be interpreted as falling within the scope of.

1: Hearing aid
10: microphone 11: external microphone 12: signal processor
13: receiver 14: memory 15:
16: Noise profile section
161: Noise extraction module 162: Noise analysis module 163: Noise profile creation module
17: Noise profile search unit
171: Internal search module 172: External search module
18: Noise correction unit
181: Noise profile applying module 182: Noise removing module
19: Noise profile storage unit
3: Server

Claims (10)

A microphone for inputting an external sound,
A signal processor for processing signals input from the microphones,
A receiver for reproducing a signal processed by the signal processing unit,
A memory for storing various kinds of information necessary for operation of the hearing aid,
A noise profile unit for extracting and profiling noise from a sound signal input to the microphone,
And a noise corrector for correcting the sound signal by applying the noise profiled by the noise profiler,
Wherein the noise profiling unit comprises: a noise extraction module for extracting noise from a sound signal input from the microphone; a noise analysis module for analyzing noise extracted by the noise extraction module; A noise profile generation module for generating a noise profile,
And a noise profile search unit for searching for a noise profile similar to the noise analyzed by the noise analysis module when the noise profile can not be generated by the noise profile generation module. hearing aid. delete The apparatus of claim 1, wherein the hearing aid
And an external microphone connected to the hearing aid separately from the microphone for receiving a target sound to be heard close to the hearing aid,
Wherein the noise extraction module extracts noise from a sound signal input from the microphone by removing the sound signal input from the external microphone, and is capable of profiling and applying the noise. delete The apparatus of claim 1, wherein the noise corrector
A noise profile applying module for applying a noise profile generated by the noise profile generating unit or retrieved by the noise profile searching unit to correct a sound signal; and a noise canceling module for, when a noise profile is generated or not searched, And a noise collecting eliminating module for eliminating noise of a sound signal using the noise elimination module. 2. The apparatus of claim 1, wherein the noise profile searching unit
And an internal search module for searching for a noise profile stored in the memory. A hearing aid which receives a surrounding sound and converts the sound into a sound that the user can hear;
And a server capable of communicating with the hearing aid and storing a noise profile,
Wherein the hearing aid is the hearing aid according to any one of claims 1, 3 and 5 to 6. 8. The method of claim 7,
Wherein the hearing aid includes a communication unit capable of performing wired / wireless communication with the server,
Wherein the noise profile retrieval unit includes an external retrieval module for retrieving a noise profile stored in the server through the communication unit. 9. The apparatus of claim 8, wherein the hearing aid
And a noise profile storage unit for storing a noise profile generated by the noise profile generation module or retrieved by the external search module in the memory. 10. The apparatus of claim 9, wherein the noise profile storage
And a noise profile generated by the noise profile generation module is stored in the server.
KR1020150043972A 2015-03-30 2015-03-30 A Hearing Aid Capable of Profiling and Adjusting of Noise and Hearing Aid System for Adjusting Noise Using the Same KR101551666B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210029816A (en) * 2018-07-12 2021-03-16 돌비 레버러토리즈 라이쎈싱 코오포레이션 Transmission control for audio devices using auxiliary signals
KR20210045375A (en) 2021-04-06 2021-04-26 조성재 Mobile hearing aid comprising user adaptive digital filter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210029816A (en) * 2018-07-12 2021-03-16 돌비 레버러토리즈 라이쎈싱 코오포레이션 Transmission control for audio devices using auxiliary signals
KR102466293B1 (en) 2018-07-12 2022-11-14 돌비 레버러토리즈 라이쎈싱 코오포레이션 Transmit control for audio devices using auxiliary signals
US11500610B2 (en) 2018-07-12 2022-11-15 Dolby Laboratories Licensing Corporation Transmission control for audio device using auxiliary signals
KR20210045375A (en) 2021-04-06 2021-04-26 조성재 Mobile hearing aid comprising user adaptive digital filter

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