TWM635174U - Hearing compensation device and hearing apparatus with the hearing compensation device - Google Patents
Hearing compensation device and hearing apparatus with the hearing compensation device Download PDFInfo
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Abstract
Description
本創作關於一種聽覺補償技術，尤其指一種具有降噪的聽覺補償裝置及具有該聽覺補償裝置之聽力設備。 The invention relates to an auditory compensation technology, in particular to an auditory compensation device with noise reduction and hearing equipment with the auditory compensation device.
依據統計顯示，全台灣領有身心障礙證明的聽覺機能障礙者超過12多萬人，聽力問題將導致語言溝通、職業適應、社會參與、學校學習、生命安全等各重要生活層面，產生隱形或顯著的障礙。 According to statistics, there are more than 120,000 hearing-impaired people in Taiwan with certificates of physical and mental disabilities. Hearing problems will lead to invisible or significant problems in important life aspects such as language communication, occupational adaptation, social participation, school learning, and life safety. obstacle.
此外，台灣即將邁入超高齡社會，聽力損失更是高居老人慢性病中的前三位。然而，由於現代助聽器及聽覺輔具科技的進步，因而可大幅改善聽覺障礙對個人、家庭、社區，乃至於整個社會的負面影響及負擔。 In addition, Taiwan is about to enter a super-aged society, and hearing loss ranks among the top three chronic diseases among the elderly. However, due to the advancement of modern hearing aids and hearing aids technology, the negative impact and burden of hearing impairment on individuals, families, communities, and even the entire society can be greatly improved.
然而，習知的助聽器或聽覺輔具需經過醫師確診個案具有聽力損失及影響日常溝通，之後轉介給聽力專業人員(例如，聽力師)。聽力專業人員會先瞭解聽損對個案在生活上的困擾、限制及其需求，以提供聽損者在聽覺輔具及聽力上的相關諮詢，且必須在聽檢室內執行聽力檢測。依 據聽障患者的聽檢結果，進行助聽器試聽，並觀察及檢測聽障患者在助聽後的反應，最後完成適合於聽障患者的助聽器。然而，由於聽力檢測係在聽檢室內執行，導致無法呈現聽損者在實際遭遇環境下的情況，而輔助效果較差；若須校正其效果，需要回到聽檢室內重新執行，較不具有效率也不夠即時。 However, conventional hearing aids or hearing aids need to be referred to hearing professionals (for example, audiologists) after a doctor has confirmed that the case has hearing loss and affects daily communication. Hearing professionals will first understand the difficulties, limitations and needs of hearing loss in the daily life of the individual, so as to provide hearing-impaired people with hearing aids and hearing-related consultation, and hearing tests must be performed in the hearing examination room. according to According to the hearing test results of hearing-impaired patients, hearing aids are tested, and the reaction of hearing-impaired patients after hearing aids is observed and tested, and finally the hearing aids suitable for hearing-impaired patients are completed. However, since the hearing test is carried out in the hearing test room, it is impossible to present the situation of the hearing-impaired person in the actual encounter environment, and the auxiliary effect is poor; if the effect needs to be corrected, it is necessary to go back to the hearing test room to perform it again, which is not efficient Not instant enough either.
因此，如何提供一種無須限定在聽檢室內進行聽力測試且無須透過聽力專業人員的協助的聽覺補償裝置及具有該聽覺補償裝置之聽力設備，以有效地在非聽檢室內之當前真實環境提供即時且客製化使用者(特別是聽障患者)的聽力輔助器(如助聽器、聽覺輔具或具有助聽功能的耳機、眼鏡等聽力設備)，遂成為業界亟待解決的課題。 Therefore, how to provide an auditory compensation device that does not need to be limited to hearing tests in the audiology room and does not require the assistance of hearing professionals and hearing equipment with the hearing compensation device, so as to effectively provide real-time testing in the current real environment in the non-audiometry room. Moreover, the customization of hearing aids (such as hearing aids, hearing aids, or earphones with hearing aid functions, glasses, etc.) for users (especially hearing-impaired patients) has become an urgent issue in the industry.
為解決前述習知的技術問題或提供相關之功效，本創作提供一種聽覺補償裝置，係包括：換能器，係接收聲音，以將該聲音轉換成電性訊號；以及降噪模組及聽力補償模組，係連接至該換能器以同步接收該電性訊號，其中，該降噪模組係產生與該電性訊號的能量相同之相反訊號，以移除環境噪音，且該聽力補償模組係依據使用者於當前真實環境中獲得的即時客製化聽力圖或聽力表，透過降噪技術結合最佳化方法及損失函數自動地搜尋複數濾波器的複數組參數，以產生最佳濾波器參數值，俾使設置於相同或單一晶片中之該降噪模組及該聽力補償模組進行即時及/或同步處理。 In order to solve the aforementioned known technical problems or provide related effects, this invention provides an auditory compensation device, which includes: a transducer for receiving sound to convert the sound into an electrical signal; and a noise reduction module and a hearing aid The compensation module is connected to the transducer to receive the electrical signal synchronously, wherein the noise reduction module generates an opposite signal with the same energy as the electrical signal to remove ambient noise, and the hearing compensation Based on the real-time customized audiogram or audiogram obtained by the user in the current real environment, the module automatically searches the complex set of parameters of the complex filter through the combination of noise reduction technology and optimization method and loss function to generate the best Filter parameter values for real-time and/or synchronous processing of the noise reduction module and the hearing compensation module disposed in the same or a single chip.
本創作亦提供一種具有上述聽覺補償裝置之聽力設備。 The present invention also provides a hearing device with the above-mentioned hearing compensation device.
於一實施例中，該聽覺補償裝置及該聽力設備係於非聽檢室的環境下進行聽力測試(audiometry)。 In one embodiment, the hearing compensation device and the hearing equipment are used for audiometry in a non-audiometry room environment.
於一實施例中，該聽覺補償裝置係設置於聽力輔助器；在另一實施例中，該聽力輔助器非為在聽檢室中之聽檢室專用耳機。 In one embodiment, the hearing compensation device is set on a hearing aid; in another embodiment, the hearing aid is not a special earphone in the hearing room.
於一實施例中，該聽覺補償裝置及該聽力設備係藉由智慧型手機的應用程式(app)結合無線通訊技術進行即時及/或同步處理。 In one embodiment, the hearing compensation device and the hearing equipment are processed in real time and/or synchronously through a smart phone application program (app) combined with wireless communication technology.
於一實施例中，該降噪模組係主動式降噪模組，而該降噪技術係主動式降噪技術。 In one embodiment, the noise reduction module is an active noise reduction module, and the noise reduction technology is an active noise reduction technology.
1:聽覺設備 1: Hearing equipment
2:聽覺補償處方 2: Auditory Compensation Prescription
3:降噪技術 3: Noise reduction technology
4:類比數位轉換器(A/D) 4: Analog-to-digital converter (A/D)
5:次級路徑 5: Secondary path
6:自適應演算法 6: Adaptive algorithm
7:線性濾波器 7: Linear filter
8:類比數位轉換器(ADC) 8: Analog-to-digital converter (ADC)
9:數位類比轉換器(DAC) 9: Digital to Analog Converter (DAC)
10:加法器 10: Adder
31,32,33:濾波器 31,32,33: filter
34:加法器 34: Adder
100:聽覺補償裝置 100: Hearing Compensation Device
200:換能器(Ref.Mic) 200:Transducer(Ref.Mic)
300:降噪模組 300: Noise reduction module
400:聽力補償模組 400: hearing compensation module
S1-S7,S10,S20,S30:步驟 S1-S7,S10,S20,S30: steps
圖1為本創作之聽覺補償裝置之方塊示意圖。 Fig. 1 is a schematic block diagram of the hearing compensation device of the present invention.
圖2為本創作之聽覺補償裝置的一實施例之方塊示意圖。 FIG. 2 is a schematic block diagram of an embodiment of the hearing compensation device of the present invention.
圖3為本創作之聽覺補償裝置的聽力補償的一實施例之示意圖。 Fig. 3 is a schematic diagram of an embodiment of the hearing compensation of the hearing compensation device of the present invention.
圖4為本創作之聽覺補償裝置的主動式降噪(active noise cancellation,ANC)技術參數搜尋之步驟流程圖。 FIG. 4 is a flow chart of steps for searching technical parameters of active noise cancellation (ANC) of the hearing compensation device of the present invention.
圖5為本創作之聽覺補償裝置的濾波器參數排列的一實施例之示意圖。 FIG. 5 is a schematic diagram of an embodiment of the arrangement of filter parameters of the hearing compensation device of the present invention.
圖6為本創作之聽覺補償裝置之另一實施例的方塊示意圖。 FIG. 6 is a schematic block diagram of another embodiment of the hearing compensation device of the present invention.
圖7為本創作之聽覺補償方法之步驟流程圖。 Fig. 7 is a flow chart of the steps of the auditory compensation method of the present invention.
以下藉由特定的具體實施例說明本創作之實施方式，熟悉此技藝之人士可由本說明書所揭示之內容輕易地瞭解本創作之其他優點及功效。 The implementation of this creation is described below through specific specific examples, and those who are familiar with the art can easily understand other advantages and effects of this creation from the content disclosed in this specification.
須知，本說明書所附圖式所繪示之結構、比例、大小等，均僅用以配合說明書所揭示之內容，以供熟悉此技藝之人士之瞭解與閱讀，並非用以限定本創作可實施之限定條件，故不具技術上之實質意義，任何結構之修飾、比例關係之改變或大小之調整，在不影響本創作所能產生之功效及所能達成之目的下，均應仍落在本創作所揭示之技術內容得能涵蓋之範圍內。 It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this manual are only used to match the content disclosed in the manual, for the understanding and reading of those familiar with this technology, and are not used to limit the implementation of this creation Therefore, it has no technical substantive meaning. Any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of this creation without affecting the effect and purpose of this creation. The technical content revealed by the creation must be within the scope covered.
圖1為本創作之聽覺補償裝置之方塊示意圖。如圖1所示，該聽覺補償裝置100係具有接收外部聲音之換能器(Ref.Mic)200，以將該外部聲音轉換成電性訊號；以及降噪模組300及聽力補償模組400，係連接至該換能器(Ref.Mic)200以同步接收該電性訊號，而該降噪模組300係產生與該電性訊號的能量相同之相反訊號，以移除環境噪音，且該聽力補償模組400係依據使用者於當前真實環境中獲得的即時客製化聽力圖或聽力表，透過降噪技術結合最佳化方法及損失函數自動地搜尋複數濾波器的複數組參數，以產生最佳濾波器參數值，俾使設置於相同或單一晶片中之該降噪模組300及該聽力補償模組400進行即時及/或同步處理。
Fig. 1 is a schematic block diagram of the hearing compensation device of the present invention. As shown in FIG. 1 , the
在一實施例中，該降噪模組300係主動式降噪(ANC)模組，而該降噪技術係主動式降噪(ANC)技術。
In one embodiment, the
在另一實施例中，若該電性訊號為正向訊號，則該相反訊號為反向訊號；反之，若該電性訊號為反向訊號，則該相反訊號為正向訊號。 In another embodiment, if the electrical signal is a forward signal, the opposite signal is a reverse signal; otherwise, if the electrical signal is a reverse signal, the opposite signal is a forward signal.
此外，上述模組均可為硬體或韌體；若為硬體，則可分別為實現降噪以及聽力補償之各種電路或具有相似技術之硬體單元；若為韌體，則可分別為執行降噪以及聽力補償之各種韌體單元。在一實施例中，該降噪模組300為降噪電路或降噪硬/韌體單元，而該聽力補償模組400為聽力補償電路或聽力補償硬/韌體單元，其中，該降噪模組300包含但不限於ANC。
In addition, the above-mentioned modules can be hardware or firmware; if they are hardware, they can be various circuits for noise reduction and hearing compensation or hardware units with similar technologies; if they are firmware, they can be respectively Various firmware units that perform noise reduction and hearing compensation. In one embodiment, the
本創作主要透過降噪(如ANC)技術結合最佳化方法及損失函數(cost function/loss function)，不僅能使聽力輔助器(如助聽器或耳機)能發出與當前噪音能量相同的反向波(或正向波)來消除耳道中的環境噪音(即，噪音降低)，並可進一步直接對使用者的聽力閥值進行聽力補償(loudness compensation/enhancement/normalization/equalization)(進而放大各頻的訊號(如正向訊號及/或反向訊號)，具有提供即時、客製化使用者的助聽器、聽覺輔具或具有助聽功能的設備(如耳機、智慧眼鏡、穿戴式裝置等聽力設備)之功效。 This creation mainly uses noise reduction (such as ANC) technology combined with optimization methods and loss function (cost function/loss function), not only to enable hearing aids (such as hearing aids or earphones) to emit reverse waves with the same energy as the current noise (or positive wave) to eliminate the ambient noise in the ear canal (that is, noise reduction), and can further directly perform hearing compensation (loudness compensation/enhancement/normalization/equalization) on the user's hearing threshold (and then amplify the Signals (such as forward signals and/or reverse signals), capable of providing real-time, customized user hearing aids, hearing aids, or devices with hearing aid functions (such as earphones, smart glasses, wearable devices and other hearing devices) The effect.
降噪技術進行聽覺補償訊號架構Noise reduction technology for auditory compensation signal architecture
圖2為本創作之聽覺補償裝置的一實施例之方塊示意圖。如圖2所示，使用者利用自己的聽覺設備1(各種智慧型設備，如智慧型手機的應用程式APP配合無線(如TWS)耳機)而非在聽檢室利用聽檢室專用耳機 進行聽力量測，進而讓使用者能在各種當前真實環境或真實應用環境(即安靜或帶噪環境)而非聽檢室來獲得使用者聽力閾值(T i )資訊，其中，i表示量測頻率。量測到的T i 將透過聽覺補償處方(prescription formula)2來計算及獲得補償增益目標曲線G i ，而聽覺補償處方的類型包含有聽力正規化(loudness normalization)及聽力均衡(loudness equalization)等類型之補償處方，例如，POGO、NAL-R、NAL-RP、DSL、DSL 5.0、POGO II、FIG6、NAL-NL1、NAL-NL2、IHAFF、LGOB、Aescu HRL-1...等具有相同或相似補償處方的類型，本創作不以此為限。 FIG. 2 is a schematic block diagram of an embodiment of the hearing compensation device of the present invention. As shown in Figure 2, users use their own hearing equipment 1 (various smart devices, such as smart phone applications APP with wireless (such as TWS) earphones) instead of using earphones dedicated to the hearing room for hearing in the hearing room. Measurement, so that the user can obtain the user's hearing threshold ( T i ) information in various current real environments or real application environments (ie, quiet or noisy environments) instead of the audiology room, where i represents the measurement frequency. The measured T i will be calculated and obtained through the auditory compensation prescription (prescription formula) 2 to obtain the compensation gain target curve G i , and the types of auditory compensation prescription include hearing normalization (loudness normalization) and hearing equalization (loudness equalization), etc. Types of compensation prescriptions, for example, POGO, NAL-R, NAL-RP, DSL, DSL 5.0, POGO II, FIG6, NAL-NL1, NAL-NL2, IHAFF, LGOB, Aescu HRL-1...etc. have the same or The types of similar compensation prescriptions are not limited in this creation.
在一實施例中，降噪技術3係採用主動式降噪(active noise cancellation,ANC)技術。為便於說明，以下均以ANC技術為例，但在不同實施例中，具有相同或相似降噪技術均可適用，本創作不以此為限。在此實施例中，濾波器31、32、33(如FF,FB及SZ)參數可以透過「機構聲學特性」及「G i 」之資訊進行設定，也就是，將透過均平方誤差(mean-square error,MSE)方法進行ANC技術中的濾波器參數設定，進而使ANC技術對換能器所傳送的聲源進行不同頻率之增益補償能力。在一實施例中，濾波器31、32、33可分別為前饋(FF)濾波器、反饋(FB)濾波器及SZ濾波器，其中，前饋(FF)濾波器接收換能器(Ref.Mic)200的電性訊號，以消除外部噪音；反饋(FB)濾波器接收換能器(Error.Mic)的電性訊號(即，換能器(Error.Mic)將耳內噪音轉換成電性訊號)，以消除耳內噪音；而SZ濾波器則接收適當的目標曲線(target curve)(G i )，以放大電性訊號(如圖2的信號源”S”)中各頻的訊號。
In one embodiment, the
當獲得G i 後，透過最佳化技術(例如，結合基因演算法之技術)或人工智慧技術等方法來搜尋ANC技術所需之參數，以逼近其目標曲線。在此實施例中，係以Biquad濾波器架構說明，由Biquad濾波器架構可獲得如下所示之公式(1)，也就是，透過上述最佳化技術(或人工智慧技術)來計算出濾波器「b 0,b 1,...,b N ,a 1 ,...,a M 」之參數。 When G i is obtained, the parameters required by the ANC technology are searched through optimization technology (for example, technology combined with genetic algorithm) or artificial intelligence technology to approach the target curve. In this embodiment, the structure of the Biquad filter is used to illustrate, and the following formula (1) can be obtained from the structure of the Biquad filter, that is, the filter is calculated by the above-mentioned optimization technology (or artificial intelligence technology) Parameters of " b 0 , b 1 ,..., b N , a 1 , ... ,a M ".
透過上述方法，可以將計算出之相關濾波器31、32、33參數寫入硬體裝置，使得本創作之聽覺補償裝置不僅能具備克服環境噪音造成使用者洩漏噪音(leakage noise)(N’)的問題，同時也可以對換能器獲得之訊號源(S)進行聽覺補償處理，以實現過去在聽檢室無法解決的問題。
Through the above method, the
圖3為本創作之聽覺補償裝置的聽力補償的一實施例之示意圖。如圖3所示，由於本創作係透過相同或單一降噪電路將原始語音訊號(original speech)經過客製化之聽覺補償處理，所以此語音係藉由降噪(如ANC)技術處理後以減低洩漏噪音且讓處理後語音訊號(processed speech)落於聽力損失者的聽力閾值(hearing threshold)之上。要說明的是，每個人的聽力閾值均不相同，本創作係可適用於各種不同使用者的聽力閾值，而產生以往沒有的聽覺補償效果。 Fig. 3 is a schematic diagram of an embodiment of the hearing compensation of the hearing compensation device of the present invention. As shown in Figure 3, since the original speech signal (original speech) is processed through customized auditory compensation through the same or a single noise reduction circuit, the speech system is processed by noise reduction (such as ANC) technology Reduce the leakage noise and let the processed speech signal (processed speech) fall above the hearing threshold (hearing threshold) of the hearing loss. It should be noted that each person's hearing threshold is different, and this creation system can be applied to the hearing thresholds of various users, thereby producing an auditory compensation effect that has never been seen before.
最佳化技術整合適應函數進行降噪技術參數搜尋Optimization technology integrates fitness function to search for parameters of noise reduction technology
如何能快速的找到不同使用者(特別是聽力損失者及聽損者)當下環境特性給予適當的目標曲線(target curve)(G i )是降噪系統效益提 升的關鍵因素之一。換言之，如何同時考量聽損者聽力閾值(T i )資訊及洩漏噪音(N’)特性來設定降噪技術中的濾波器參數將十分重要。 How to quickly find out the current environmental characteristics of different users (especially the hearing-impaired and hearing-impaired) and give an appropriate target curve ( G i ) is one of the key factors for improving the efficiency of the noise reduction system. In other words, it is very important to set the filter parameters in the noise reduction technology by considering the hearing threshold ( T i ) information and the leakage noise ( N' ) characteristics of the hearing-impaired person at the same time.
在一實施例中，圖4為本創作之聽覺補償裝置的主動式降噪(ANC)技術參數搜尋之步驟流程圖；圖5為本創作之聽覺補償裝置的濾波器參數排列的一實施例之示意圖。如圖4所示，本創作使用最佳化技術(例如，結合基因演算法之技術)配合具備語音理解力(STOI,SII,NCM,HASPI,ASR scores...等)或語音品質(PESQ,HASQI,SDR...等)導向之函式做為適應函數(fitness function)來快速找出合適之ANC技術參數。透過本創作，能快速的考量環境噪音特性及使用者的聽力情況給予個人化之降噪及聽覺補償效益。詳細步驟說明如下所示。 In one embodiment, FIG. 4 is a flow chart of steps for searching the technical parameters of active noise reduction (ANC) of the hearing compensation device of the present invention; FIG. 5 is an embodiment of the arrangement of filter parameters of the hearing compensation device of the present invention schematic diagram. As shown in Figure 4, this creation uses optimization technology (for example, technology combined with genetic algorithm) with speech comprehension (STOI, SII, NCM, HASPI, ASR scores...etc.) or speech quality (PESQ, HASQI, SDR... etc.)-oriented functions are used as fitness functions to quickly find the appropriate ANC technical parameters. Through this creation, it can quickly consider the characteristics of environmental noise and the hearing condition of the user to provide personalized noise reduction and auditory compensation benefits. Detailed step-by-step instructions are shown below.
首先，在步驟S1，透過亂數產生M條染色體(chromosome)且在每一條染色體內會依照固定順序來排列ANC技術中所需要的參數，其概念如圖5所示。 First, in step S1, M chromosomes are generated through random numbers, and the parameters required in the ANC technology are arranged in a fixed order in each chromosome, the concept of which is shown in FIG. 5 .
接著，在步驟S2，M條中的染色體參數值會帶入ANC架構中來對當前的測試語句進行處理。此時，可以透過所具備語音理解力及語音品質導向之函式(例如，HASPI,HASQI)來對M條染色體進行評分。值得注意的是，於此時也將同步考量使用者聽力閾值(T i )資訊。 Next, in step S2, the chromosome parameter values in the M items will be brought into the ANC architecture to process the current test sentence. At this time, the M chromosomes can be scored by using speech comprehension and speech quality-oriented functions (eg, HASPI, HASQI). It should be noted that at this time, the hearing threshold ( T i ) information of the user will also be considered simultaneously.
之後，在步驟S3，判別是否當前之資訊已符合最佳解(此部份將設定一個閥值)或已完成迭代的次數？ After that, in step S3, it is judged whether the current information has met the optimal solution (a threshold value will be set in this part) or the number of iterations has been completed?
若未符合最佳解時，則進至步驟S4，進行後續的染色體選擇(selection)。之後進至步驟S5，進行交配(crossover)、突變(Mutation)等過 程，從而產生出新的群體，舉例來說，在此階段中將會產生「M+0.5M」條染色體，接著在步驟S6，依照適應適應函數計算出來的分數高低來進行染色體的選擇，在新群體(new population)中仍保持M條來進行上述步驟之ANC參數尋找，再依據設定之迭代次數來完成此部份之ANC參數搜尋動作。 If the optimal solution is not met, proceed to step S4 for subsequent chromosome selection. Proceed to step S5 afterwards, carry out mating (crossover), mutation (Mutation) etc. process, so as to generate a new group, for example, in this stage, "M+0.5M" chromosomes will be generated, and then in step S6, the chromosomes are selected according to the score calculated by the fitness function. In the new population, M items are still kept to search for the ANC parameters in the above steps, and then complete the search for ANC parameters in this part according to the set number of iterations.
反之，當上述流程找到ANC參數的最佳解時，則進至步驟S7，直接將此些ANC參數傳送且儲存至使用者之耳機(如TWS耳機)中進行聽覺補償及洩漏噪音消除，進而幫助使用者有更佳之聆聽效果。 Conversely, when the above process finds the optimal solution of the ANC parameters, then proceed to step S7, and directly transmit and store these ANC parameters to the user's earphones (such as TWS earphones) for auditory compensation and leakage noise elimination, thereby helping Users have better listening effect.
要說明的是，圖5中所示之a1、a2、b0、b1、b2係為上述公式(1)之參數，但僅為舉例說明，本創作不以此為限。 It should be noted that a 1 , a 2 , b 0 , b 1 , and b 2 shown in FIG. 5 are parameters of the above-mentioned formula (1), but it is only for illustration, and the invention is not limited thereto.
Hybrid ANC技術Hybrid ANC technology
此外，在習知技術中，使用者可以透過按鍵或環境感知的方式去調整抗噪程度的高低。在人車擁擠的環境中，可以快速切換到環境音模式來與人通話，或感知環境周圍的聲音來降低降噪係數以提高安全性。主動式降噪耳機為藉由主動噪音控制機制(ANC)可消除周遭令人不快之聲音(亦即噪音)的耳機。由於人聲、汽車鳴笛等都屬於高頻，在使用耳機時會擔心聽不到別人說話，過馬路時為了安全也必須保持聽覺靈敏，所以大部分使用者最迫切的需要還是阻隔低頻噪音。其原理是通過降噪系統來產生與外界噪音相反的聲波將噪音中和，進而實現降噪的效果。 In addition, in the conventional technology, the user can adjust the level of the anti-noise level through buttons or environment sensing. In a crowded environment, you can quickly switch to the ambient sound mode to talk to people, or perceive the surrounding sounds to reduce the noise reduction coefficient to improve safety. Active noise canceling headphones are headphones that can eliminate unpleasant sounds (ie, noise) around them through active noise control (ANC). Human voices, car horns, etc. are all high-frequency. When using headphones, you may worry that you cannot hear other people’s voices. When crossing the road, you must keep your hearing sensitive for safety. Therefore, the most urgent need for most users is to block low-frequency noise. The principle is to use the noise reduction system to generate sound waves opposite to the external noise to neutralize the noise, thereby achieving the effect of noise reduction.
若經由耳機內的麥克風來偵測人耳可聽到之環境低頻噪音(約20至200Hz)，然後將雜訊訊號傳送至控制電路，讓控制電路進行即時的 運算，並通過喇叭發射與噪音相位相反、振幅相同的聲波即能抵銷噪音。透過硬體機制達到降噪效果，內部由拾音器(負責去聆聽與偵測無法用物理結構隔絕的外部聲音)、降噪處理器(產生與噪音對立，180°相反的反向聲波)、揚聲器(將降噪器製造出來的反向聲波會跟正常的音樂一起傳輸進入耳機的喇叭)組成，以完成降噪。然而，目前ANC採用之濾波器參數未能同時考量聽力損失情況予以設計，進而將造成除噪及補償單元間的效益無法達到最佳表現。換言之，若能同時考量噪音消除及聽覺補償等兩個部份最佳化參數設定之交集，其將能讓聽力損失者於真實應用情境有更佳之聆聽效益。 If the ambient low-frequency noise (about 20 to 200Hz) that can be heard by the human ear is detected through the microphone in the earphone, then the noise signal is sent to the control circuit, allowing the control circuit to perform real-time The noise can be canceled out by transmitting the sound wave with the opposite phase and the same amplitude as the noise through the loudspeaker. The noise reduction effect is achieved through the hardware mechanism. The interior consists of a pickup (responsible for listening to and detecting external sounds that cannot be isolated by physical structures), a noise reduction processor (generating a 180° opposite sound wave that opposes the noise), and a speaker ( The reverse sound wave produced by the noise reducer will be transmitted to the speaker of the earphone together with the normal music to complete the noise reduction. However, the current filter parameters used by ANC are not designed in consideration of hearing loss, which will result in the inability to achieve the best performance between noise cancellation and compensation units. In other words, if the intersection of two partial optimization parameters, such as noise cancellation and hearing compensation, can be considered at the same time, it will allow hearing loss people to have better listening benefits in real application situations.
圖6為本創作之聽覺補償裝置之另一實施例的方塊示意圖，於此實施例中，需要兩個換能器及一個揚聲器，兩個換能器之其中一者換能器(Ref.Mic)200為靠近噪聲源，另一換能器(Error.Mic)則放在需要抗噪的聲場中不斷接收其誤差值。當一個訊號由換能器(Ref.Mic)200接收後，先經過類比數位轉換器(A/D)4轉換成數位訊號，隨後傳送到次級路徑(secondary-path)5的脈衝響應單元計算獲得
最後，透過梯度下降法(gradient descent)極小化其上述之公式，以達到收斂之目的，其得到之公式(演算法)(3)係表示如下：
其中，μ為更新權重之step size，而
綜合上述實施例，本創作之聽覺補償裝置包括換能器、降噪模組以及聽力補償模組，其中，換能器接收外部聲音，以將外部聲音轉換成電性訊號。 Based on the above-mentioned embodiments, the hearing compensation device of the present invention includes a transducer, a noise reduction module, and a hearing compensation module, wherein the transducer receives external sound to convert the external sound into an electrical signal.
再者，降噪模組係連接至換能器以接收來自換能器的電性訊號，而聽力補償模組也連接至換能器以同步接收來自換能器的電性訊號，其中，降噪模組及聽力補償模組係於相同或單一晶片中進行即時及同步處理；此外，ANC技術採用硬體電路及/或韌體於相同或單一晶片中進行信號處理，能大幅度減緩運算延遲時間。換言之，由於本創作的降噪模組及聽力補償模組係於相同或單一晶片中進行即時及同步處理，因而本創作能有效地解決習知助聽器或聽覺輔具產生處理訊號延遲的問題。 Moreover, the noise reduction module is connected to the transducer to receive electrical signals from the transducer, and the hearing compensation module is also connected to the transducer to receive electrical signals from the transducer synchronously, wherein the noise reduction module is connected to the transducer to receive electrical signals from the transducer. The noise module and the hearing compensation module are processed in the same or a single chip in real time and synchronously; in addition, ANC technology uses hardware circuits and/or firmware to perform signal processing in the same or a single chip, which can greatly reduce the calculation delay time. In other words, since the noise reduction module and the hearing compensation module of this invention are processed in the same or a single chip for real-time and synchronous processing, this invention can effectively solve the problem of processing signal delay caused by conventional hearing aids or hearing aids.
另外，降噪模組係為具有主動式降噪技術或相似技術。 In addition, the noise reduction module is equipped with active noise reduction technology or similar technology.
在一實施例中，降噪模組產生與電性訊號的能量相同之相反訊號，以移除環境噪音，同時，聽力補償模組依據使用者(特別是聽障患者)於當前真實環境中獲得的即時客製化聽力圖或聽力表，透過降噪技術結合 最佳化方法及損失函數自動地搜尋複數濾波器的複數組參數，以產生最佳濾波器參數值，俾使設置於相同或單一晶片中之降噪模組及聽力補償模組即時及同步處理，進而放大電性訊號中各頻的訊號(如正向訊號及/或反向訊號)，以針對不同使用者(特別是聽障患者)且接近其生活型態達到同時抗噪及補償的聽覺補償效果。 In one embodiment, the noise reduction module generates an opposite signal with the same energy as the electrical signal to remove environmental noise. At the same time, the hearing compensation module acquires Real-time customized audiogram or audiogram, combined with noise reduction technology The optimization method and loss function automatically search the complex set of parameters of the complex filter to generate the optimal filter parameter value, so that the noise reduction module and the hearing compensation module set in the same or a single chip can be processed in real time and synchronously , and then amplify the signals of each frequency in the electrical signal (such as forward signal and/or reverse signal), so as to achieve simultaneous anti-noise and compensation for different users (especially hearing-impaired patients) and close to their life style compensation effect.
由於本創作係適用於各種智慧型設備，以使聽覺補償裝置可於非聽檢室(例如，居住房舍、室外、車內、公園等)的環境下進行聽力測試(audiometry)，也就是說，本創作的聽覺補償裝置不必限定在聽檢室內進行聽力測試，以在非聽檢室內之當前真實環境提供即時、客製化使用者的助聽器、聽覺輔具或具有助聽功能的設備。 Since this creation is applicable to various smart devices, the auditory compensation device can be used for hearing tests (audiometry) in non-audiometry rooms (such as residential buildings, outdoors, cars, parks, etc.), that is to say , the hearing compensation device of the present invention does not need to be limited to hearing tests in the hearing room, so as to provide real-time, customized hearing aids, hearing aids or equipment with hearing aid functions in the current real environment outside the hearing room.
在一實施例中，本創作之聽覺補償裝置係設置於聽力輔助器，例如，耳機(包括但不限於動圈式、動鐵式、壓電式、氣動式、靜電式、有線傳輸、無線傳輸之耳機)、助聽器、抗噪耳機、監聽耳機、智慧眼鏡、穿戴式裝置或其組合。在另一實施例中，本創作之聽力輔助器亦為聽力設備，具有上述之聽覺補償裝置，其中，該聽覺補償裝置係設置並連接於該聽力設備。 In one embodiment, the hearing compensation device of the present invention is set on hearing aids, such as earphones (including but not limited to moving coil, moving iron, piezoelectric, pneumatic, electrostatic, wired transmission, wireless transmission earphones), hearing aids, anti-noise earphones, monitor earphones, smart glasses, wearable devices or combinations thereof. In another embodiment, the hearing aid of the present invention is also a hearing device, having the above-mentioned hearing compensation device, wherein the hearing compensation device is set and connected to the hearing device.
此外，本創作之聽覺補償裝置可藉由智慧型手機的應用程式(app)結合無線通訊技術(例如，藍牙(Bluetooth)、Wi-Fi、近場通訊(near-field communication,NFC)、超寬帶(ultra-wideband,UWB)、IEEE 802.15.4等無線通訊技術)，直接將使用者(特別是聽障患者)的即時客製化之聽力圖或聽力表即時同步於設置於相同或單一晶片中之降噪模組及聽力 補償模組進行運作，提供使用者(特別是聽障患者)能即時地具有舒適聆聽感受。 In addition, the hearing compensation device of the present invention can combine wireless communication technologies (such as Bluetooth (Bluetooth), Wi-Fi, near-field communication (NFC), ultra-wideband (ultra-wideband, UWB), IEEE 802.15.4 and other wireless communication technologies), directly synchronize real-time customized audiograms or audiograms of users (especially hearing-impaired patients) in the same or a single chip Noise reduction module and hearing The compensation module operates to provide users (especially hearing-impaired patients) with instant and comfortable listening experience.
值得一提的是，本創作的聽覺補償裝置除了不必限定在聽檢室內進行聽力測試之外，本創作也無須透過聽力專業人員的協助，僅透過自身的裝置(例如，助聽器、聽覺輔具、耳機等)且藉由智慧型手機及無線通訊技術，便可即時且客製化聽障患者的助聽器、聽覺輔具或具有助聽功能的耳機等聽力設備。 It is worth mentioning that the hearing compensation device of this creation does not need to be limited to hearing tests in the audiology room, and this creation does not need the assistance of hearing professionals, only through its own devices (such as hearing aids, hearing aids, Earphones, etc.) and through smart phones and wireless communication technologies, hearing aids, hearing aids, or earphones with hearing aid functions can be customized in real time for hearing-impaired patients.
圖7為本創作之聽覺補償方法的步驟流程圖，一併配合上述實施例的說明，其中，該方法流程包含下列步驟S10至S30。 FIG. 7 is a flow chart of the steps of the hearing compensation method of the present invention, together with the description of the above-mentioned embodiment, wherein the flow of the method includes the following steps S10 to S30.
於步驟S10中，藉由換能器接收外部聲音，將外部聲音轉換成電性訊號。 In step S10, the external sound is received by the transducer, and the external sound is converted into an electrical signal.
於步驟S20中，藉由連接至換能器的降噪模組及聽力補償模組，接收電性訊號，而降噪模組係產生與電性訊號的能量相同之相反訊號，以移除環境噪音，且聽力補償模組係依據使用者(特別是聽障患者)的於當前真實環境中獲得的即時客製化聽力圖或聽力表，透過降噪技術結合最佳化方法及損失函數自動地搜尋複數濾波器的複數組參數，以產生最佳濾波器參數值，俾使設置於相同或單一晶片中之降噪模組及聽力補償模組即時及/或同步處理。 In step S20, the electrical signal is received by the noise reduction module and the hearing compensation module connected to the transducer, and the noise reduction module generates an opposite signal with the same energy as the electrical signal to remove the environment Noise, and the hearing compensation module is based on the real-time customized audiogram or audiogram obtained by the user (especially the hearing-impaired patient) in the current real environment, through the combination of noise reduction technology and optimization method and loss function. Search the complex set of parameters of the complex filter to generate the optimal filter parameter value, so that the noise reduction module and the hearing compensation module disposed in the same or a single chip can be processed in real time and/or synchronously.
在一實施例中，使用者須開啟自己的聽覺設備(如各種智慧型設備)之降噪功能及/或聽力補償功能，以使上述模組進行上述步驟，實現即時及/或同步處理。 In one embodiment, the user has to enable the noise reduction function and/or the hearing compensation function of the hearing device (such as various smart devices) so that the above-mentioned module can perform the above-mentioned steps to realize real-time and/or synchronous processing.
於步驟S30中，經上述即時及/或同步處理後，進而放大電性訊號中各頻的訊號(如正向訊號及/或反向訊號)。 In step S30, after the above real-time and/or synchronous processing, the signals of each frequency in the electrical signal (such as forward signal and/or reverse signal) are further amplified.
綜上所述，本創作之聽覺補償裝置及具有該聽覺補償裝置之聽力設備，係藉由降噪技術結合損失函數，不僅能使耳機能發出與當前噪音能量相同的反向波(或正向波)來消除耳道中的環境噪音，並且也可以藉由聽力補償模組直接對使用者(特別是聽障患者)的即時客製化之聽力圖或聽力表進行聽力補償(進而使各頻的訊號(如正向訊號及/或反向訊號)放大)，具有即時且客製化聽障患者的助聽器、聽覺輔具或具有助聽功能的耳機之功效。 To sum up, the hearing compensation device and the hearing equipment with the hearing compensation device of the present invention combine the loss function with the noise reduction technology, which not only enables the earphone to emit the same reverse wave (or forward wave) with the same energy as the current noise. waves) to eliminate the environmental noise in the ear canal, and can also use the hearing compensation module to directly perform hearing compensation on the real-time customized audiogram or audiometer of the user (especially the hearing-impaired patient) (so that the hearing compensation of each frequency Signal (such as forward signal and/or reverse signal) amplification), has the effect of real-time and customized hearing aids, hearing aids or earphones with hearing aid function for hearing-impaired patients.
此外，本創作的聽力補償係透過最佳化方法結合損失函數自動地設定多個濾波器的參數，以產生適合聽障患者的新目標曲線(即，各頻的訊號(如正向訊號及/或反向訊號)放大)，從而針對不同聽障患者且接近其生活型態達到同時抗噪及補償的聽覺補償效果。 In addition, the hearing compensation of this creation is to automatically set the parameters of multiple filters through an optimization method combined with a loss function to generate a new target curve suitable for hearing-impaired patients (that is, signals of each frequency (such as forward signals and/or Or reverse signal) amplification), so as to achieve the auditory compensation effect of simultaneous anti-noise and compensation for different hearing-impaired patients and close to their life style.
上述實施形態僅例示性說明本創作之原理及其功效，而非用於限制本創作。任何熟習此項技藝之人士均可在不違背本創作之精神及範疇下，對上述實施形態進行修飾與改變。因此，本創作之權利保護範圍應如申請專利範圍所列。 The above-mentioned embodiments are only illustrative to illustrate the principles and effects of the invention, and are not intended to limit the invention. Any person who is familiar with this technology can modify and change the above-mentioned implementation form without violating the spirit and scope of this creation. Therefore, the scope of protection of the rights of this creation should be listed in the scope of the patent application.
100:聽覺補償裝置 100: Hearing Compensation Device
200:換能器(Ref.Mic) 200:Transducer(Ref.Mic)
300:降噪模組 300: Noise reduction module
400:聽力補償模組 400: hearing compensation module
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| TWI827009B (en) * | 2022-04-01 | 2023-12-21 | 瑞音生技醫療器材股份有限公司 | Hearing compensation device and hearing compensation method |
| US11985481B2 (en) | 2022-04-01 | 2024-05-14 | Rehear Audiology Company Ltd. | Hearing compensation device and hearing compensation method |
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| US8416959B2 (en) * | 2009-08-17 | 2013-04-09 | SPEAR Labs, LLC. | Hearing enhancement system and components thereof |
| JP5716287B2 (en) * | 2010-04-07 | 2015-05-13 | ソニー株式会社 | Audio signal processing apparatus, audio signal processing method, and program |
| CN104247453B (en) * | 2012-01-20 | 2018-06-05 | 罗姆股份有限公司 | Mobile phone |
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| CN116939459A (en) * | 2022-04-01 | 2023-10-24 | 瑞音生技医疗器材股份有限公司 | Hearing compensation device and hearing compensation method |
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| US11985481B2 (en) | 2022-04-01 | 2024-05-14 | Rehear Audiology Company Ltd. | Hearing compensation device and hearing compensation method |
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