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  助听器验配算法
发布: sharylh - 03-02-2019, 08:25 AM - 版块: 软件技术 - 无回复

目前业界有4中验配方法

Fig6 由安森美可以从安森美公司提供,下面的需要别的渠道得到

NAL-NL1公式、
NAL-NL2公式、
DSL-V5公式

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  使用适合成年人的助听器 验配算法:基于证据的有效性评估
发布: sharylh - 03-02-2019, 07:50 AM - 版块: 软件技术 - 无回复

使用适合成年人的助听器 验配算法:基于证据的有效性评估


基于数字助听器的自适应算法
互动演化计算与研究
专业系统


需要文档请联系jash_1999@jhearing.com

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  What’s New About NAL-NL2?
发布: sharylh - 03-02-2019, 07:45 AM - 版块: 软件技术 - 无回复

一直一来助听器验配算法是NAL-NL1 之类的,现在有最新的NAL-NL2从语音清晰度和响度上得到了很大的提升,从 国外the hearing reveiw网站上有些介绍,摘录下。
http://www.hearingreview.com/2012/09/wha...t-nal-nl2/

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~·· 

http://www.hearingreview.com/2012/09/wha...t-nal-nl2/

What’s New About NAL-NL2?

Published on September 2, 2012

[图: 11.png]


 

Here is a short summary of some of the key changes to the ubiquitous NAL fitting algorithm, including the formula’s latest approach to compression attack-times, gender differences, binaural/monaural fittings, cases of mild-to-moderate loss, the wearer’s primary spoken language, and other factors.

 

Editor’s Note: Dr Galster regularly publishes commentary on interesting articles in the hearing care literature. This article was adapted from his March 1, 2012 blog post found at galster.net in which he and Dr Stevens focus on research from the 2011 paper published in Hearing Research by Keidser et al.[sup]1[/sup]

For years, the National Acoustics Laboratories’ NAL-NL1 has been the benchmark for compressive, independently derived, prescriptive formulas.[sup]2[/sup]The recently introduced NAL-NL2 advances their original formula with knowledge gained from a wealth of empirical data collected with NAL-NL1.[sup]2[/sup]Similarities between NAL-NL1 and NAL-NL2 include:

 

1.[size=2]  [/size]The primary goals of maximizing speech intelligibility while not exceeding overall normal loudness at a range of input levels, and

2.[size=2]  [/size]The use of predictive models for speech intelligibility and loudness.[sup]3,4[/sup]

 

The speech intelligibility model used in both NAL-NL1 and NAL-NL2 differs from the Speech Intelligibility Index (SII).5 The ANSI SII assumes that, regardless of hearing loss, speech should be fully understood when all speech components are audible. Included in NAL-NL1 is a modification to the SII proposed by Ching and colleagues.6 This modification or effective audibility factor assumes that, as hearing loss becomes more severe, less information can be extracted from the speech signal. More recent data have been collected to derive an updated effective audibility factor for use with NAL-NL2.1

 

The NAL-NL2 formula includes constraints to prevent compression ratios from exceeding a maximum value for a given frequency or degree of hearing loss. Modifications were based on data suggesting that users with severe or profound hearing loss prefer lower compression ratios than those prescribed by NAL-NL1, when fitted with fast-acting compression.7 However, there is evidence to suggest that higher compression ratios could be used in this population with slow-acting compression. Therefore, in the case of severe or profound hearing losses, the new formula prescribes lower compression ratios for fittings with fast-acting compression than those with slow-acting compression. For mild and moderate losses, compression speed does not affect prescribed compression ratios.

 

Based on experimental outcomes with NAL-NL1 fittings, the development of NAL-NL2 took various attributes of the hearing aid user into consideration, such as gender, binaural listening, experience level, age, and language. In the case of gender, Keidser and Dillon8 studied the real-ear insertion gain measurements for the preferred frequency responses of 187 adults, finding that, regardless of experience or degree of hearing loss, female participants preferred an average of 2 dB less gain than male participants. As a result, gender differences are factored into each fitting.

 

The NAL-NL2 method still prescribes greater gain for monaural fittings than it does for binaural fittings. This difference is similar to the NAL-NL1 formula.9 Recent studies suggest that the binaural to monaural loudness difference may be less than previously indicated.10 For symmetrical hearing losses, the binaural difference ranges from 2 dB for inputs below 50 dB SPL to 6 dB for inputs above 90 dB SPL, so binaurally fitted users will have higher prescribed compression ratios than monaural users. For asymmetrical losses, the binaural correction decreases as the asymmetry increases

Experience with hearing aids as it relates to degree of hearing loss is a consideration in the NAL-NL2 formula. Keidser and her colleagues11 found that, with increasing severity of hearing loss, new users prefer progressively less prescribed gain than experienced hearing aid users. Although this observation does not agree with several other studies,12,13 the NAL-NL2 recommends gain adaptation for new hearing aid users with moderate or severe hearing loss. Further details of this discrepancy will be addressed in a future publication (personal communication, Gitte Keidser, 2012).

 

The developers of the NAL-NL2 formula determined that adults with mild-to-moderate hearing loss preferred less overall gain for 65 dB inputs than would be prescribed by NAL-NL1.11 This is corroborated by other studies13,14 in which hearing aid users with mild-to-moderate hearing loss preferred less gain for high and low level inputs. These reports indicate that participants generally preferred slightly less gain and higher compression ratios than those prescribed by NAL-NL1—a preference that was incorporated into the revised prescriptive procedure.

 

The NAL-NL2 also takes the hearing aid user’s language into consideration. For speakers of tonal languages (eg, many East Asian languages, including Chinese), slightly more low-frequency gain is prescribed. Increased gain in the low-frequency region more effectively conveys fundamental frequency information, an especially important cue for recognition of tonal languages.

 

Like its predecessor, the NAL-NL2 fitting formula leverages theoretical models of intelligibility and loudness perception to maximize speech recognition without exceeding normal loudness. The revised formula takes into consideration a number of factors other than audiometric information and benefits from extensive empirical data collected using NAL-NL1. Ultimately, the NAL-NL2 procedure results in a slightly flatter frequency response, with relatively more gain across low and high frequencies and less gain in the mid-frequency range than in the NAL-NL1 formula.

 

The study of objective performance and subjective preference with hearing aids is constantly evolving, and the NAL-NL2 prescriptive method may be a step toward achieving increased acceptance by existing hearing aid users and improved spontaneous acceptance by new hearing aid users.

 

Acknowledgements

The authors thank Gitte Keidser, PhD, for her comments on a draft of this summary. Many of the works cited were completed by Drs Keidser, Harvey Dillon, PhD, and the talented research staff of the NAL and other laboratories. This article was based on an original blog post (March 1, 2012) found at: http://galster.net

 

References

1.[size=2]  [/size]Keidser G, Dillon H, Flax M, Ching T, Brewer S. The NAL-NL2 prescription procedure. Audiol Res. 2011;1(e24):88-90.

2.[size=2]  [/size]Dillon H. Page Ten: NAL-NL1: A new procedure for fitting non-linear hearing aids. Hear Jour. 1999;52:10-16.

3.[size=2]  [/size]Moore BCJ, Glasberg B. A model of loudness perception applied to cochlear hearing loss. Aud Neurosci. 1997;3:289-311.

4.[size=2]  [/size]Moore BCJ, Glasberg B. A revised model of loudness perception applied to cochlear hearing loss. Hear Res. 2004;188:70-88.

5.[size=2]  [/size]American National Standards Institute (ANSI). Methods for calculation of the speech intelligibility index. ANSI S3.5-1997. New York City: Acoustical Society of America; 1997.

6.[size=2]  [/size]Ching T, Dillon H, Byrne D. Speech recognition of hearing-impaired listeners: Predictions for audibility and the limited role of high frequency amplification. J Acoust Soc Am. 1998;103(2):1128-1140.

7.[size=2]  [/size]Keidser G, Dillon H, Dyrlund O, Carter L, Hartley D. Preferred low and high frequency compression ratios among hearing aid users with moderately severe to profound hearing loss. J Am Acad Audiol.2007;18(1):17-33.

8.[size=2]  [/size]Keidser G, Dillon H. What’s new in prescriptive fittings down under? In: Palmer CV, Seewald R, eds. Hearing Care for Adults 2006. Stafa, Switzerland: Phonak AG; 2006:133-142.

9.[size=2]  [/size]Dillon H, Keidser G, Ching T, Flax M. The NAL-NL2 Prescription Formula. Paper presented at: Audiology Australia 19th National Conference; May 2010; Sydney, Australia.

10.[size=2]          [/size]Epstein M, Florentine M. Binaural loudness summation for speech and tones presented via earphones and loudspeakers. Ear Hear.2009;30(2):234-237.

11.[size=2]          [/size]Keidser G, O’Brien A, Carter L, McLelland M, Yeend I. Variation in preferred gain with experience for hearing aid users. Int J Audiol.2008;47(10):621-635.

12.[size=2]          [/size]Convery E, Deidser G, Dillon H. A review and analysis: Does amplification experience have an effect on preferred gain over time? Aust N Z J Audiol. 2005;27(1):18-32.

13.[size=2]          [/size]Smeds K, Keidser G, Zakis J, et al. Preferred overall loudness. II: Listening through hearing aids in field and laboratory tests. Int J Audiol. 2006;45(1):12-25.

14.[size=2]          [/size]Zakis J, Dillon H, McDermott HJ. The design and evaluation of a hearing aid with trainable amplification parameters. Ear Hear.2007;28(6):812-830.
 

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  未来的助听器,会往哪方面发展?
发布: sharylh - 01-31-2019, 11:37 AM - 版块: 市场动态 - 无回复

文章来源于: http://wemedia.ifeng.com

未来的助听器会发展成什么样?在可以预见的未来,助听器的发展有三个主题。

1、小型化
从19世纪末的桌面大小到20世纪末的重量不足一克,助听器外型尺寸越来越小。尽管目前还未找到进一步大幅度减小助听器外型尺寸的有效方法,但作为趋势,助听器肯定会越做越小,越做越美观。微型助听器不仅是制造商的希望,更是广大助听器使用者的要求。
2、个性化
随着相关听力知识的普及,人们会越来越重视自己的听力,同时也会发现听力损失完全相同的听力障碍者极少,每个听障者的听力状况都有其特殊的一面。因此,为每个听障者个别定制助听器以保证使用效果必然会成为发展趋势。
3、智能化
要想进一步提高助听质量(比如清晰度)就必须使助听器具备记忆能力、重新编码能力等“智能”,比如抗噪声、声源定向定位、音质定位等各类类耳蜗性能。这一切,需要计算机技术与数字化技术的支持。智能化助听器已经开始受到广泛重视,但作为商品还远远没有成熟,远远不能满足广大特殊用户的需求。
[图: 6BB763C1C592908165AA9AFCB918CBDAA91F5273..._h427.jpeg]
1、智能手机远程调试
随着现代人对手机越来越依赖,助听器的发展也会跟智能手机挂钩。例如通过手机app直接链接控制助听器一些功能的调试,减少传统助听器需要到店里调试的麻烦。也可以在用户佩戴助听器之后,通过互联网将助听器状态链接到开发者的电脑上,由专家远程为使用者更精准地调控助听器。
2、无线充电
电池续航能力一直以来都是智能充电产品的一项难题,由于智能化以后,处理的信息也会增多,进而用电量也会增加。除了对充电电池本身的研究,也有很多人在使用功耗和处理信息方面做研究,希望去掉一些无效运算也能节约电脑,增加续航。
不过直到现在还没有一款颠覆性的产品和处理方案。这对未来助听器来说有很大发展空间,同时也是难题。也许就会因为其他功能差别不大的情况下,电池的续航会成为他们最终的考虑。
3、双耳波束形成技术
研究人员发现,当正常听力的人在不同强度的背景噪声中听同一个简短的故事时,大脑感知听力的神经活动是一致的,双耳波束形成技术就是利用这一原理。研究者Mejia表示,通过对测量分析算法的改进从佩戴者那里获得大脑神经信号,并利用这些信息来控制助听器的降噪系统是可行的。双耳波束形成技术——超级定向麦克风技术将会成为未来助听器的共同特征。助听器也将会更聪明,能够学习个人的听觉偏好,并在环境变化中随着这些听觉偏好迅速做出调整。
4、视觉引导技术
有一项新的技术正在研究——视觉引导技术,简单的说就是,你看哪里就能听到哪里的声音。现在的数字助听器都有降噪功能,但并不能有效的排除所有噪声,仍然不能满足佩戴者的所有要求。新的视觉引导技术如果实现,就能精准的听见目标人物说话,排除其他杂音。
5、认知控制技术
通过大脑神经的控制,想听哪里就听哪里。哥伦比亚大学正在进行一项研究,将语音处理技术和听觉注意力解码技术结合,形成了一项认知控制技术。可根据佩戴者神经信号的解码信号来选定特定的音频接收通道,再由系统自动将目标声与噪声分开,并分析听者想听的声音,最后做到放大目标声。研究人员表示,这项技术在助听器上的实际应用已经不存在何理论上的问题。
未来的助听器将会如何发展?我们拭目以待。

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  2018年听力援助销售额将达到400万单位吗?
发布: sharylh - 01-31-2019, 11:33 AM - 版块: 市场动态 - 无回复

此文章是翻译国外市场研究所得---2018.11.14发表 by By Karl Strom


市场增长高于平均水平,VA活动罕见增加。与去年同期相比,第三季度美国助听器净销量增长6.2%,通过HIA的统计数据从7月到9月,HIA报告私营/商业部门助听器配药活动增加了6.2%,退伍军人事务部增加了6.4% - 自第一季度以来,VA的首次百分比增长超过3% 2016年第一季度。

[图: Qtly-Sales-HIA-Q3-2018.jpg]

2018年前三个季度的总销售额与2017年同期相比增长了5.9%(私营部门为6.9%,VA为1.8%)。去年,美国助听器市场增长了3.4%(私营部门为4.0%,VA为0.9%)。
大多数市场分析师认为美国助听器市场的“平均增长率”为2-4%。因此,2018年美国听力行业的总体情况是商业部门的平均销售额之一,前三季度的季度环比增长率分别为7.2%,7.3%和6.2%。今年,分别。相比之下,VA在前两个季度的配药活动略微下滑-0.48%和-0.38%,仅在第三季度上涨6.4%的情况下反弹。


400万助听器?最近的HIA销售统计数据显示,2018年首次助听器总销量可能超过400万台(图2)。人力资源部的预测显示,最终的数字为398万套,或者非常接近 - 只有20000套,低于400万套。 2014年,助听器销售额仅在4年前突破了300万单位。因此,整体扩大市场继续增长:1983年实现了100万单位的门槛;然后,2004年助听器销售额达到200万台,然后再用10年时间达到300万台。

然而,尽管有这些令人鼓舞的统计数据,但很明显,并非所有的销售都是通过传统的配药方式实现的。正如之前的人力资源市场报告所述,随着Big Box零售商和其他分销渠道增加了市场力量,HIA统计数据变得更加不透明,这些渠道也反映在HIA报告的“私营部门/商业”统计数据中。例如,现在人力资源部估计Costco构成了超过12%的市场份额。此外,药房连锁店和替代分销渠道继续取得进展。例如,基于Twin Cities的品牌经济助听器和个人声音放大产品(或PSAP,可能很快成为“OTC助听器”)的制造商IntriCon已成为股票市场的宠儿,因为其收入增加了在2017年增加29.9%后,2018年迄今为止为25.4%。


[图: Yr-End-Sales-HIA-Q3-2018.jpg][图: HAstyles-HIA-Q3-2018.jpg]
BTE占美国市场的四分之三。到2018年9月,接收器(RIC)助听器占美国助听器市场的72.2%,而传统的耳背式(BTE)助听器占12.6%(图3)。由于RIC被认为是BTE的子类型,这意味着在美国销售的6种(84.8%)助听器中有超过5种属于BTE风格。[/url]

作为一个群体,耳内(ITE)助听器构成了美国市场的其余部分(15.2%)。具体而言,运河(ITC)援助占市场的5.0%,全壳ITE占4.2%,全渠道(CIC)占4%,半壳ITE占1.5%,“其他”ITE 0.6%。

根据HIA统计数据,无线助听器现在占美国销售助听器的91.6%。几乎所有(99%)分配的RIC都是无线的,而86%的ITE和ITC,以及约65%的传统BTE和CIC被归类为无线助听器。




[url=https://imgbb.com/][图: strom.jpg]
Karl Strom是The Hearing Review的编辑,并且一直在报道听力保健问题25年。

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  2018年前25个助听器必备功能文章
发布: sharylh - 01-31-2019, 11:05 AM - 版块: 市场动态 - 无回复

本文来源海外网站摘录:http://www.hearingreview.com --2019.1.2

Editor’s Picks: Top-25 ‘Hearing Review’ Feature Articles in 2018
Published on January 2, 2019


[img=466x0]http://a360-wp-uploads.s3.amazonaws.com/wp-content/uploads/hearingr/2018/12/dreamstime_m_98991142-466x310.jpg[/img]
Last week, we showcased the most important news items in The Hearing Review during 2018. This week, we’ll present the Editor’s Picks for the 25 most important feature articles featured in Hearing Review during the past year, listed in chronological order.
[img=75x0]http://a360-wp-uploads.s3.amazonaws.com/wp-content/uploads/hearingr/2013/03/jergerMug2008-02_opt-214x300.jpeg[/img]
James Jerger, PhD
The Remarkable History of Right-Ear Advantageby James Jerger, PhD (January 2018 HR)
For good reasons, the auditory system of humans evolved with a right-ear advantage (or left-ear disadvantage) as speech processing required more of the brain. Dr Jerger takes readers on a remarkable journey of the auditory system and looks at some of the interesting implications of right-ear advantage in terms of binaural processing, speech understanding, and amplification.
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Melanie A. Ferguson, PhD
Hearing Aids for Adult Mild-to-Moderate Hearing Loss: An Interview with Melanie Ferguson, PhDby Douglas Beck, AuD (January 2018 HR)
Dr Ferguson and Dr Beck discuss the evidence for how hearing aids benefit adults with mild-to-moderate hearing loss, as well as Dr Ferguson et al’s systematic review on the subject which was recently published in the Cochrane Database.
How Should Modern Hearing Aids Be Programmed for Verification with REM? By Erica D. Koehler, AuD, and Neil A. Wright, AuD (February 2018 HR)
You’re not alone if you ask, “Should I turn off the advanced features when doing REM?”
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SPECIAL REPORT: Hearing Care and “Value-based Reimbursement” in Medicineby Lena Kauffman (March 2018 HR)
John Bakke, MD, Barbara Weinstein, PhD, Gabrielle Saunders, PhD, and David Blanchard explain how the new world of “value-based” or “outcomes-based” reimbursement is changing medicine, and how it may end up revolutionizing audiology and hearing healthcare.
Real-life Applications of Machine Learning in Hearing Aidsby Oliver Townend; Jens Brehm Nielsen, PhD; and Jesper Ramsgaard, MA (April 2018 HR)
A look into the present and future of hearing aid processing and post-fitting adjustments for patients.
[图: dreamstime_m_39296343-2-300x201.jpg]These Hearing Aids Make Everything Sound Digital!By Marshall Chasin, AuD (April 2018 HR)
In a “blind taste test,” patients should not be able to tell the difference between analog and digital hearing aids. Here are some possibilities (and potential remedies) if the disparities do indeed actually exist.
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Todd Ricketts, PhD
Real-ear, Cognition, Speech-in-Noise, and More: An Interview with Todd Ricketts, PhDby Douglas Beck, AuD(April 2018 HR)
Dr Beck interviews Todd Ricketts, PhD, of Vanderbilt University about how many people actually purchase hearing aids each year, what we can and cannot say about hearing loss and dementia, the RECD and speech in noise measures, and more.
Mythbusters’ Myth #4: I Have to Discuss the Audiogramby Mary Beth Jennings, PhD; Christopher Lind, PhD; and Nerina Scarinci, PhD
How often have we looked into the faces of our clients and their families as we describe the audiogram only to find anxious, blank, or confused faces staring back at us?
[img=136x0]http://a360-wp-uploads.s3.amazonaws.com/wp-content/uploads/hearingr/2018/07/TraynorPt2_Fig3-300x214.jpg[/img]
Figure 3. Porter’s Five Forces. From Glaser and Traynor 2018.2 Reprinted with permission from Plural Publishing.
Survival Strategies in a Competitive Hearing Healthcare Marketby Robert M. Traynor, EdD, MBA(June 2018 HR)
Dr Traynor offers his perspectives on industry consolidation and the current major trends that could influence strategies of an independent practice owner.
[img=91x0]http://a360-wp-uploads.s3.amazonaws.com/wp-content/uploads/hearingr/2018/07/VictorBray0718-248x300.png[/img]
Victor Bray, PhD
WEBINAR: Depression, Hearing Loss, and Treatment with Hearing Aidsby Victor Bray, PhD, sponsored by Hamilton CapTel
An overview of important research into hearing loss, depression, loneliness, dual-sensory losses, and other chronic conditions, as well as an update about current research into treatment with hearing aids, assistive devices, and other options.
Clinical Speech Audiometry in the Age of the AERPby James Jerger, PhD(July 2018 HR)
Dr Jerger explores two different ways to think about clinical speech audiometry relative to assessing total listening effort: 1) Altering the task from repetition to decision, and 2) Evaluating the response evoked by the decision via an AERP paradigm.
[img=89x0]http://a360-wp-uploads.s3.amazonaws.com/wp-content/uploads/hearingr/2017/01/AnuSharmaRetouch-232x300.jpg[/img]
Anu Sharma, PhD
Cortical Neuroplasticity in Hearing Loss: Why It Matters in Clinical Decision-Making for Children and Adultsby Anu Sharma, PhD, and Hannah Glick, AuD (July 2018 HR)
With a better understanding of cortical brain changes associated with hearing loss, the potential to develop objective brain-based tools (ie, biomarkers) increases. Drs Sharma & Glick explain how the brain actually changes in response to sound.
Effects of Amplification on Cortical Electrophysiological FunctionBy Sridhar Krishnamurti, PhD, and Larry Wise, AuD (July 2018 HR)
A review of the possible use of speech-evoked CAEP as an objective hearing aid validation measure, data suggesting the clinical value of CAEPs for assessing cortical changes from amplification, as well how we might use this data in audiology services to demonstrate patient benefit.
[img=88x0]http://a360-wp-uploads.s3.amazonaws.com/wp-content/uploads/hearingr/2018/07/Hampton_dementia_infographic_Lancet-149x300.jpg[/img]
Figure 1. Risk factors for dementia. Image used with permission from [i]The Lancet.[/i]
Nine Risk Factors Associated with Dementiaby Dennis Hampton, PhD (August 2018 HR)
Revisiting the 2017 Lancet publication that includes hearing loss as a major risk factor for dementia.
eAudiology: Shifting from Theory to Practiceby Joseph Montano, EdD; Gina Angley, AuD; Colleen Ryan-Bane, MS; William Campbell, MClSc, et al (September 2018 HR)
A concensus statement that provides recommendations to hearing care providers for integrating eAudiology into their existing practice as a means to reach new patients, enhance patient care, and increase the value of their services.
Pediatric Amplification, Noise Management, and Incidental Learningby Douglas Beck, AuD; Elaine Ng, PhD, and Maureen Doty Tomasula, AuD(September 2018 HR)
Should noise reduction algorithms be used in pediatric hearing aid fittings? Here is an examination of the rationale and arguments from the literature which generally support the use of advanced noise-reduction techniques and technologies for children.
[图: Chasin_NorthernLights-300x200.jpg]Using Audiology to Extend a Musician’s Careerby Marshall Chasin, AuD (October 2018 HR)
An introduction to a special issue designed to helping musicians, and those who like to listen to music, extend their playing careers and listening enjoyment.
OTC: Let’s Get on the Same Page! By Karl Strom (October 2018 HR)
Now that we’ve defined (at minimum) what an OTC hearing device should look like, maybe it’s time to start defining a minimal standard for what a professional hearing aid fitting should look like.
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We’re Going to Have to Move! By Dennis Van Vliet, AuD
Dr Van Vliet describes a recent clinical encounter in which the engineer-patient ultimately embraced and accepted his amplification.
Audiologic Considerations for People with Normal Hearing Sensitivity Yet Hearing Difficulty and/or Speech-in-Noise Problemsby Douglas L. Beck, AuD; Jeffrey L. Danhauer, PhD; Harvey B. Abrams, PhD, et al (October 2018 HR)
Hearing care professionals often encounter people who complain of hearing difficulties and trouble hearing in noise, but when tested, present with hearing sensitivity and thresholds that are within “normal limits.” This article reviews the audiological evidence regarding this unique population.
[img=142x0]http://a360-wp-uploads.s3.amazonaws.com/wp-content/uploads/hearingr/2018/10/Voss_Fig1_ValenteChickenSlide-300x168.jpg[/img]
Figure 1. The chicken/hearing aid pricing analogy used by Dr Valente in his patient counseling readily shows how different services—in this case, the various states of preparation in a chicken dinner—result in widely different prices for what are essentially the same meal.
Coupler and Real-Ear Performance between PSAPs and Hearing Aidsby Adam Voss, AuD, Kristi Oeding, AuD, A.U. Bankaitis, PhD, John Pumford, AuD, and Michael Valente, PhD(November 2018 HR)
Before jumping to the conclusion that any PSAP and/or OTC hearing device would be suitable for the many different types of hearing losses, we need to look at their coupler and real-ear performance data. This study suggests current PSAPs are suitable for mild losses only.
A Comparison of Automated Real-Ear and Traditional Hearing Aid Fitting Methodsby Paula Folkeard, AuD; John Pumford, AuD; Parvaneh Abbasalipour, MSc; Nicole Willis, and Susan Scollie, PhD
Several “autoREMfit” systems have been developed to assist in hearing aid fittings. This article evaluates the Audioscan VerifitLINK, that could be integrated into any manufacturer’s software, and documents its performance in target matching during hearing aid fitting.
[img=82x0]http://a360-wp-uploads.s3.amazonaws.com/wp-content/uploads/hearingr/2018/11/Don_Nielsen-188x300.jpg[/img]
Donald Nielsen, PhD
CEDRA: A Consumer Questionnaire to Detect Disease Risk Before Hearing Aid Purchaseby Donald W. Nielsen, PhD (December 2018 HR)
The free CEDRA questionnaire, which is designed to identify the risk of diseases with ear and hearing symptoms to help maintain consumer safety while dispensing hearing aids and other hearing amplification devices when licensed providers are not involved.
Evaluating Select Personal Sound Amplifiers and a Consumer-Decision Model for OTC Amplificationby Ron Leavitt, AuD, Ruth Bentler, PhD, and Carol Flexer, PhD (December 2018 HR)
OTC hearing devices are coming, but how should they function and for whom should they be recommended? Six case studies are presented, with the results showing that people with true moderate hearing loss may not be well served by what has been characterized as a “consumer-decides” model of care.
Development and Clinical Applications of the ORCA Repeat and Recall Test (RRT)by Christopher Slugocki, PhD, Francis Kuk, PhD, and Petri Korhonen, MSc (December 2018 HR)
Appreciating the unique difficulties related to speech understanding in noise and working memory is critical to tailoring individualized interventions in hearing healthcare. The Repeat and Recall Test shows promise as a tool for better hearing aid fittings.

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  2017中国听力行业发生的那些事儿
发布: sharylh - 01-31-2019, 10:53 AM - 版块: 市场动态 - 无回复

(原文来源于腾讯网)
距离2018年还有短短3天的时间,听力行业通讯联合行业内各大制造商、服务商、经销商,收集汇总了2017年行业内发生的大事记,在即将结束的2017年里,为中国听力行业在听力发展进程中画上一个圆满的句号。
  文末有彩蛋
  产品动态
[图: 640]
  2017发布的新产品
  1月
  Natus对GN大北旗下的Otometrics(耳听美)收购业务宣告完成。
  2月
  奥迪康中国绿Plus平台超大功率助听器 小老虎、魔法师等上市
  力斯顿中国推出了精灵系列标准式耳道机及一系列支持手机编程调试的助听器
  4月
  耳之家APP上线。目前注册验配师5000余人,另有部分听障人士及听障儿童家长。
  5月
  欧仕达推出入门级助听器悦声,市场价格在1000-1800元之间
  峰力中国推出威平台美人鱼助听器
  6月
  我的奥迪康APP上线。可提供产品真伪查询、维修进度查询。
  唯听中国推出Unique 优逸系列新品
  7月
  唯听中国推出超大功率耳背机童话
  9月
  斯达克中国推出妙迷你RIC可充电助听器,全新SurfLink迷你伴侣,妙muse系列,爱风Halo 2系列,爱声Axio系列助听器
  10月
  听觉有道推出贝尔通品牌挚音(Ally)系列无线助听器
  瑞听推出全新OTC助听器Vigor与Eggo
  11月
  欧仕达无线智能IA平台助听器上市
  西嘉中国推出全新一代的高端技术平台及其新品“Nx真我系列”
  西嘉听力云作为一项革新的远程听力服务登陆中国
  12月
  听觉有道推出贝尔通博德(Bold)系列超大功率助听器
  峰力中国上市锂航系列充电助听器系列产品与钛斗系列定制助听器。
  海之声听力上市新产品:臻耳儿童双频助听器、双星A变频分体助听器、峰力奥笛分体助听器
  企业动态
  奥迪康中国正式启用成都办事处。这是继北京、广州、沈阳外增设的第4个办事处。
  奥迪康总部任命 Ole Asboe J?rgensen 为总裁。
  SONOVA集团CEO Lukas Braunschweiler 宣布退休, Arnd Kaldowski 将从明年4月1日起正式接任CEO职务。
  SONOVA索诺瓦全球听力学院在苏州落户并运转。
  峰力中国举办第9届助听器验配师大赛。
  斯达克Starkey任命Brandon Sawalich为集团总裁
  听觉有道成为大北听力集团旗下贝尔通Beltone品牌在中国地区的总代理。
  听觉有道在四川、山东、江苏等地增加18家门店,目前直营店面共有120多家。
  “耳之家”收购“听客来”。
  海之声听力成立河北分公司、浙江分公司、江西分公司。
  海之声成立大北区管理中心。
  海之声新增15家听力中心。目前共有116家听力中心。
  丽声与瑞士博瑞峰建立战略伙伴关系
  天籁之音听力在长春、杭州和南昌开设新的听力中心
  耳朵树开设长春、成都4S听力中心
  百助获得“国家高新技术企业”认定
  展会与会议
[图: 640]
  点击可查看大图
  培训班
  点击可查看大图
[图: 640]
  获奖
[图: 640]
  欧仕达(子公司莱亚特)入选福建省引进高层次创业创新人才百人计划
  新声入选国家瞪羚企业培育库
  丽声荣获“福建省科技型企业 ”称号与“福州市产品质量奖 ”称号
  奥迪康OPN(18年上半年中国上市)
  国际消费类电子产品创新大奖
  红点设计大奖
  爱迪生创新金奖
  奥迪康医疗Neuro 2人工耳蜗
  红点设计大奖
  瑞声达恩佐ENZO 2
  国际消费类电子产品创新大奖
  瑞声达聆客LiNX 3
  德国消费电子展(IFA)创新奖
  优利康Moxi Now与Moxi Fit(1月19日中国将上市全新Tempus诺平台产品)
  红点设计大奖
  Moxi Now获得最佳设计奖。
  社会责任
  瑞声达将在5年内向中国残疾人福利基金会捐赠价值人民币1000万元的助听器,开展“集善工程——(瑞声达智能聆听)助听行动”。
[图: 640]
  瑞声达携手中国听力医学发展基金会,共同发起“听力健康畅享未来”公益项目。
  斯达克获颁北京爱尔公益基金会2017年度合作伙伴奖。
  斯达克“世界从此欢声笑语”中国项目走进甘肃。
[图: 640]
  峰力与多个省市残联合作开展“ 峰力爱心助听”项目。
  Sivanto集团与中国残疾人福利基金会、中国听力语言康复中心共同发启的“德国西嘉助听器·多彩之声助听行动”, 捐赠中国残疾人福利基金会价值1200万助听器和300万元儿童康复教育基金项目资金。
[图: 640]
  宁夏捐赠仪式
  海之声总公司被广东省青少年发展基金会授予广东希望工程爱心企业。
  百助与中国听力医学发展基金会联合成立公募基金“百助公益基金”,参与腾讯99公益日之听障儿童护理包项目。
  爱可声与多个省市残联合作开展“爱可声传递助听”项目。
  神州鸿声中国爱心基金在10月联合久久老人网,北京广播电视报,发起“善行京城,聆听世界”公益活动。
  彩蛋环节
  在留言区能够准确说出下图4个助听器的具体品牌及系列名的前10位朋友,可以赢得由峰力赞助的双肩背包或斜挎包一个。
[图: 640]
  友情提示:图中的4个助听器均是17年在国内最新发布的产品哦。

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  Over-the-Counter (OTC) Hearing Aid Act: What You Need To Know
发布: sharylh - 01-31-2019, 10:49 AM - 版块: 市场动态 - 无回复

For decades, the hearing assistance of any kind has been seen as something meant for our grandparents, but the fact is hearing loss affects people of all ages starting as early as early 20’s. Because of this, many believe eventually everyone will be wearing some sort of hearing device in the near future. Hearing devices can both improve our ability to hear sounds and with new technology continuously being developed, they can be discreet and comfortable.
Recently, Hearing Aids have made their way to the forefront of the news. Like with all news, when loads of information become available it can sometimes become hard to sift through the information to understand. Because of this, we’ve sifted through and have trimmed down the important information to provide you with the basics when it comes to deciding whether going down the Hearing Aid trail or if you could get away with an OTC Hearing Aid.
Noted in a recent blog titled, “The Hearing Gap: Accessibility and the Consequences of Hearing Loss,” one of the many reasons people who needed hearing assistance did not get help was because often hearing loss was not a priority for policymakers. For years, hearing loss straddled the lines between being a healthcare issue, a public health concern, and a lifestyle issues.
Luckily, our Senators were listening and became aware of the difficulties associated with hearing loss and the undeniable benefits surrounding making OTC Hearing Aids accessible. Last summer the Senate’s near-constant gridlock came to a rare agreement giving Senator, Elizabeth Warren, a bipartisan legislative win. The Senate voted 94 to 1 to pass a broad Food and Drug Administration bill, the “Over the Counter Hearing Aid Act. The act contained a measure written by the Massachusetts Democrat specifically designed to provide greater public accessibility and affordability with over-the-counter (OTC) hearing aids. The OTC Hearing Aid Act enables adults with the detected mild-to-moderate hearing loss to access OTC hearing aids without visiting or being seen by a hearing care professional.
While the FDA continues to regulate hearing aids it does not consider OTC Hearing Aids to be medical devices when labeled for recreational or any other use by individuals with normal hearing. Yet, specific safety regulations related to sound output levels apply to these products. It is important to note, per the FDA’s website there are currently no products that can claim to address hearing loss that are or claim to be OTC hearing aids within the meaning of section 520(q) of the FD&C Act as amended by FDARA.
Currently, hearing aids continue to be restricted [medical] devices, for which sales must follow applicable federal and state requirements overseen by the FDA (Food & Drug Administration) including monitoring by a medical professional.
It is important to note, while the OTC Hearing Aid Act is wonderful news and will provide those with mild hearing issues some assistance, it is not meant for someone with any significant hearing loss. If you suspect you suffer from any form of hearing loss, please visit our website to take advantage of your FREE hearing exam near you today. It is always best to lean on the safe side and have your hearing tested.
Should you need a hearing aid, our Lucid Certified Hearing Specialists will be able to help you identify and give practical advice on what hearing aids are available to you. Our specialists will provide you with recommendations on particular models, so you can be confident you’re making the right choice. To keep them working effectively and safely, you need a proper diagnosis from a licensed professional, and regular visits for follow-up and maintenance. Hearing care professionals ensure you are fit properly. This can save you thousands of dollars in future medical costs you’re risking by self-diagnosing and choosing over-the-counter hearing aids that provide more amplification than you need and can result in further hearing damage.
In closing, it is important to note TWO FACTS should you suspect hearing loss.
#1 According to the National Institute on Deafness and Other Communication Disorders only 1 of 5 people who could benefit from a hearing aid actually wear one.
#2. The Johns Hopkins School of Medicine found in a 12-year study conducted by their neurology department that untreated hearing loss increased the risk for dementia.
THE FINE DETAILS: 
Below are the details of The OTC Hearing Aid Act provided by Congress.gov.
The bill amends the Federal Food, Drug, and Cosmetic Act to require the Food and Drug Administration (FDA) to categorize certain hearing aids as over-the-counter hearing aids and issue regulations regarding those hearing aids.
The regulations for over-the-counter hearing aids must: (1) provide reasonable assurances of safety and efficacy; (2) establish output limits and labeling requirements; and (3) describe requirements for the sale of hearing aids in-person, by mail, or online, without a prescription.
State and local governments may not establish or continue in effect requirements specifically applicable to hearing products that are not identical to FDA requirements and that restrict or interfere with the servicing or sale of over-the-counter hearing aids.

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  Advanced Hearing Aids: Wearables You’ll Want to Wear
发布: sharylh - 01-28-2019, 03:54 AM - 版块: 硬件区 - 无回复

In many wearable devices, wireless connectivity is quickly becoming more commonplace, instead of a feature found only on high-end devices. Wireless technology makes it much easier for users to control their device, ultimately helping to make the user experience more enjoyable and increase adoption. Still today, making control adjustments (e.g., volume control, program selection, etc.) on a hearing aid can be challenging. Users can make adjustments manually by selecting the one or two small buttons on the device. Some may be able to do this while it is still on the ear, but others may have to remove it beforehand. Another option requires using a dedicated manufacturer specific remote control, or a relay device (a larger unit typically worn around the neck), if operations using a smartphone are desired. Most hearing aids available today don’t possess the ability to communicate directly with smartphones, so this additional unit is needed in order to convert the proprietary radio link hearing aids use into a standard Bluetooth[sup]®[/sup] link smartphones can understand.  
 
Since many people today already carry and use smartphones, using it to communicate with and control the user’s hearing aids has by far the most appeal. Adding to its ease-of-use, custom smartphone applications feature intuitive icons and touch controls which are friendly for all levels of technical understanding. For hearing aids, these apps allow users to easily check their devices’ battery levels, and optimize program or volume control settings of left and right hearing aids individually. Other features can include alerts to incoming texts or phone calls, or the use of RSSI (Received Signal Strength Indicator) to help locate a misplaced hearing aid.
Using wireless technology, audio can be streamed digitally to the hearing aid from an external source such as a sound system or a television equipped with an ancillary device. This can provide a more immersive entertainment experience for the wearer, with better audio quality. Wireless technologies such as Bluetooth Low Energy (BLE) now provide the opportunity to deliver better and more discrete user experiences for hearing-aid wearers. Several hearing aid manufacturers have enabled BLE in their hearing aids by creating a direct radio link between the device and smartphone, eliminating the need for a relay or third-party unit.  
 
Within any hearing aid form factor(from Behind-the-Ear (BTE) to Receiver-in-Canal (RIC)), the designer must arrange the receiver, the battery and associated circuitry, user controls for volume adjustment and program switching, and the audio digital signal processor (DSP) and associated peripherals including memory and now a Bluetooth radio transceiver. One or more microphones are usually needed, to enable background-noise cancellation and directional sound pick-up. The power consumption of the additional radio subsystem must also be considered to minimize any impact on the overall system to avoid demanding a larger, heavier battery to supply more energy.

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System-in-Package (SiP) solutions can help overcome the space limitations of miniature devices by integrating several components into a single package.
 
Designed specifically for hearing aids, Ezairo[sup]®[/sup] 7150 SL is a wireless-enabled audio processing hybrid module which can easily be integrated into a standard BTE shell. Based on the programmable Ezairo 7100 digital signal processing (DSP) platform, the miniature hybrid module features precision quad-core architecture. Ezairo 7150 SL provides multi-protocol wireless support, is optimized for 2.4 GHz license- free radio bands, and is compatible with BLE as well as custom protocol variants to deliver ultra-low-power stereo audio streams. To store important hearing aid parameters, Ezairo 7150 SL provides 2 Mb of non-volatile memory (EEPROM).
To further assist with development, ON Semiconductor has produced a complete reference design of an Ezairo 7150-SL based BTE hearing aid, including the hybrid module, required passive components, and 2.4 GHz radio antenna to help designers develop and refine their own device. The reference design is comprised of fully- assembled hardware, a sample Android™ application, and firmware for stereo audio streaming via a remote dongle and Control over BLE.

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Multi-protocol wireless support enables advanced hearing aid features such as Control over Bluetooth Low Energy (CoBLE) using a smartphone or tablet, and audio streaming via a remote dongle that plugs into the standard audio output jack of the source equipment. The audio streaming protocol uses a proprietary low-latency radio link that consumes very little power (only about 4-5 mA off a standard Zinc-Air hearing aid battery).

The stereo audio streaming feature allows users to hear audio from any external source like televisions or car radios through the use of a small transmitter dongle. The dongle can also operate in remote microphone mode, further enhancing the user’s listening experience in challenging situations, like noisy environments or class rooms where the speaker might be far away.</p><p>
Advanced features, especially wireless connectivity, hold the potential to revolutionise quality of life for hearing aid wearers. Physical space constrains have been a key factor in limiting progress, but sophisticated integration techniques and new radio technologies have now helped to enable wireless connectivity, such as Control over BLE and low-latency audio streaming, without the need for bulky relay devices. These features now set the scene for dramatic improvements to the end-user experience, helping to transform hearing aids from a device someone needs to use into one they’ll want to use.

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  安森美半导体推出行业最低功耗用于物联网和互联的健康与保健的蓝牙低功耗SoC,现提供样品
发布: sharylh - 01-28-2019, 02:44 AM - 版块: 市场动态 - 无回复

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高度灵活经认证的蓝牙5无线系统单芯片(SoC)提供更快的数据率及更多功能,同时尽可能延长系统电池使用寿命

2017224 — 推动高能效创新的安森美半导体(ON Semiconductor,美国纳斯达克上市代号:[url=http://www.onsemi.cn/PowerSolutions/ir.do?lctn]ON
),藉推出最新的产品使公司处于超低功耗无线互联的最前沿的地位。高度灵活的、超微型的多协议蓝牙5无线系统认证的单芯片(SoCRSL10能够支持物联网和互联的健康与保健行业中兴起的先进无线功能,而不影响电池使用寿命或整体系统尺寸。该器件的目标应用包括如健身追踪器和智能手表等可穿戴,智能门锁和照明或电器等电子设备。
RSL10充分利用蓝牙低功耗技术增加的数据率吞吐量能力,同时优化功耗。精密的SoC以卓越的整体功率配置,为宽广范围的应用提供不可思议的高能效,包括在接收模式和深度睡眠模式下的行业最佳的峰值Rx。不同于竞争方案,它适用于1.2 V1.5 V电池的应用,并提供1.1 V3.6 V的电压范围,无需一个外部DC - DC转换器。
高度集成的双核架构基于用户可编程的ARM® Cortex®-M3处理器,提供达48 MHz的时钟速度和支持2.4千兆赫(GHz)专有协议栈的灵活性,还采用超低功耗的32Dual-Harvard数字信号处理(DSP)系统,支持信号处理密集型应用,如无线音频编码解码器。
安森美半导体模拟方案部执行副总裁兼总经理高腾博(Bob Klosterboer)说:可穿戴设备和健康与保健设备的进展不断促进系统尺寸的减小和电池使用寿命的优化,我们发挥几十年来针对助听器开发超低功耗系统单芯片(SoC)的经验和专长,开发了这种方案,为功耗设立了新的基准。
为了加快客户设计入选和客户产品面市进程,安森美半导体现提供一个完整的开发平台,包括硬件板、软件工具、完整的文档集和广泛的蓝牙协议和固件配置文件库。目前提供的RSL10 SoC样品,采用超微型5.50平方毫米51引脚WLCSP封装。计划4月底将可提供6x6毫米48引脚QFN的样品。

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