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Sunday, December 29, 2019

Download the hearing aids products specfications from google documents

A hearing aid is an electronic device that can receive and amplify incoming sounds for people with hearing impairment to aim for better sound understanding through proper amplification.

Here's how they work:

  • A microphone picks up sound around you.
  • An amplifier makes the sound louder.
  • A receiver sends these amplified sounds into your ear.

Not everyone with hearing loss can benefit from hearing aids. But only 1 in 5 people who could have improvement wear them. Most of the time, they're for people who have damage to their inner ear or the nerve that links the ear with the brain. The damage can come from:

  • Disease
  • Aging
  • Loud noises
  • Medications

Hearing aid ear molds
    Hearing aids are generally thought of as consisting of a microphone, an amplifier circuit, and a receiver. In fact, hearing aids also have an important component-earmolds. An ear mold is a device that transmits output sound from the earpiece of a hearing aid to the external auditory canal or eardrum.
The acoustic plug-in is part of a complete hearing aid system.

Why use ear molds
    Before the emergence of ear molds, hearing aids were connected to the ear canal with different size ear plugs, and different size ear canals used different size ear plugs. However, because the earplugs and the ear canal are not tightly matched, when the volume of the hearing aid is large, the output sound of the hearing aid will leak to the microphone through the external ear canal, and acoustic feedback will occur. In this way, hearing aids cannot meet the needs of patients with severe and very severe deafness.
In addition, the earplugs are easy to fall off, which is not good for hearing aid fixation, especially for behind-the-ear hearing aids. Based on this, ear molds are produced, which are also two functions of ear molds.

Ear mold concept
    Ear molds are acoustic inserts made according to the shape of the ear cavity and external auditory canal of the hearing aid user. It is placed in the ear cavity or ear canal, and is fixed in the ear using anatomical structures such as the ear wheel and the opposite ear wheel, the tragus and the opposite tragus, and the external ear canal.
The ear mold is an acoustic plug-in, which is part of the hearing aid system. It transmits the amplified sound of the hearing aid from the receiver of the hearing aid to the external ear canal or tympanic membrane. For in-ear, ear canal, and other customized hearing aids, the shell of the hearing aid is equivalent to an ear mold.
    Standard ear mold as shown. This ear mold is a plug-type ear mold with a sound hole diameter of 2mm and no vent holes. Due to its better sealing in the ear, it is suitable for severe and very severe deafness. There is a small metal ring or a small ring of thermoplastic rubber on the outer end of the ear mold sound hole. The earphone of the box-type hearing aid is buckled on this ring, and the sound can be transmitted to the external ear canal through the sound hole. Therefore, standard ear molds are suitable for high-powered cassette hearing aids.

Standard ear mold composition
A-ear wheel B-ear screen
C-cut between the tragusD- pair of tragus
E-outer ear F-ear wheel

Figure 4-2 Anatomy of the auricle
Figure 4-3 Ear mold position


Download the hearing aids products specfications from google documents:

Tuesday, December 17, 2019

HLAA News: Historic Formation of International Cochlear Advocacy Alliance to Improve Access to Cochlear Implants for Adults with Severe to Profound Hearing Loss

HLAA News: Historic Formation of International Cochlear Advocacy Alliance to Improve Access to Cochlear Implants for Adults with Severe to Profound Hearing Loss

Link to Hearing Loss Association of America

Historic Formation of International Cochlear Advocacy Alliance to Improve Access to Cochlear Implants for Adults with Severe to Profound Hearing Loss

Posted: 17 Dec 2019 10:45 AM PST

Historic Formation of International Cochlear Advocacy Alliance to Improve Access to Cochlear Implants for Adults with Severe to Profound Hearing Loss   GENEVA, December 6, 2019: The themes of...

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Sunday, December 15, 2019

EUHA 2019 64th International Congress of Hearing Aid Acousticians

Event Details
Date: 16 October 2019 - 18 October 2019

Location name: Nuremberg, Germany

Location address: Nürnberg Convention Center, Messezentrum 2, 90471 Nuremberg, Germany.

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Report by Monika Baumann and Susanna Løve Callaway.

'Securing the Future and Intelligent Listening' was the focus of the 64th International Congress of Hearing Acousticians, held in Hannover from 16-18 October 2019. More than 8000 delegates from 99 countries took part.

Extending the digitisation in hearing technology within connectivity and the use of artificial intelligence within machine learning to give the hearing aid users an extended dimension for individualisation of listening experience, conditions and possibilities to utmost best participate in our interactive world seems to be the theme of the next decade. Combining health care for an aging generation by providing hearing technology on a new level will be the future started from now. For hearing aid acousticians and manufacturers of hearing systems a transition into a new business?

  • Keynote speaker for opening session: futurologist Kai Gondlach sketching human's technology journey for the next decade
  • EUHA Sponsorship Award: EUHA Vice President; Eva Keil-Becker, presented the award to Christoph Neumann and Lennart Bandick
  • Professor Dr Karin Schorn presented the Research Award of the Research Association of German Hearing Aid Acousticians (FDHA) to Dr Hendrik Husstedt

Those who did not manage to attend the congress, or wish to recap in peace and quiet what they heard, will soon be able to watch all presentations online at

Report by Susanna Løve Callaway, Director of Clinical Audiology, Oticon A/S

This year, I had the pleasure of visiting the annual EUHA conference for the very first time. In the past, many colleagues of mine within the Demant organisation have gone and shared their experiences about new advances in hearing health care and I looked forward to exploring the halls with over 140 exhibitors for myself. The exhibit halls were comfortable and for the most part not too crowded, with a lot of natural light. I might have a few suggestions to improve the food offering for lunch. I was, however, able to get great coffee at Bernafon and several other exhibitors!

Overall, the atmosphere was pleasant and talking to individual exhibitors allowed me to dig deeper into the specific products. I spoke at length to fellow professionals at Widex, Hörzentrum Oldenburg, Lenire, Phonak, and Signia and I sat and listened to a lecture at the Resound booth to learn about remote care options and marketing strategies from a psychological perspective. Our own stand, Oticon, was well-visited and included product presentations and a book signing with the author of Ganz Ohr, Thomas Sünder.

There were interesting live demonstrations / shows of Phonak Marvel, Signia Xperience, and Starkey Livio AI and as a fellow hearing aid manufacturer, it is always fascinating to study the wording, marketing strategies, and message prioritisation of competitors. I noticed an overall exhibit design trend of simple, but aesthetically pleasing design and short powerful messaging. It also occurred to me that the focus overall was not as much on audiological innovations, as it was on connectivity, new form factors, digitalisation, machine learning, sensor technology, and small, easy-to-use accessories. 

Overall, it was an interesting and inspiring experience that gave me new ideas to take home into my own everyday work.


Report by Monika Baumann, Manager for Post-market Clinical Follow-up, Oticon A/S

On Wednesday 16 of October the doors of Nuremberg Convention Centre, Germany, opened for the 64th International Congress of Hearing Aid Acousticians 2019. An impressive trade show with more than 154 exhibiting companies from 21 countries, 22 lectures and six tutorials, presenting current knowledge from the field of audiology, research, hearing technology and medicine welcomed 8000 delegates from 80 countries in the world.

When I arrived at EUHA in Nuremberg it felt like coming home. As a German Hörakustiker (hearing-aid acoustician) from education, I have attended numerous EUHA conferences and always enjoyed when it returned to Nuremberg. Entering the conference centre, I met with friends in the waiting line and later, in the exhibition hall, there was a warm welcome on the first morning from Phonak and Hansaton at the entrance of hall 3A, offering an arrival snack with white sausages and pretzels. This immediately made their booths busy. A first tour through both exhibition halls left me with the impression of being invited to a fascinating multi-media world of hearing technology.

EUHA President, Beate Gromke opened the conference at lunchtime by citing Aristoteles with the words "The Whole is greater than the sum of its parts". This was to highlight that it is the first time EUHA is providing a tool for networking with speakers after their respective lectures to share their expertise. EUHA also provides a programme of lectures, tutorials, and the Future Friday sessions, in parallel to exhibitors showcasing the latest innovations in hearing aid technology, fitting systems, and diagnostics.

EUHA has for many years been offering an educational programme in parallel to the exhibition and the lectures of the conference. It is held in form of 90-minute tutorials assigned to specific topics on Thursday and Friday. This year, six topics were covered in the German language.

The first tutorial discussed the question, 'how does psychoacoustics affect the subjective loudness determination of sound by the hearing aid user and how could this be used to optimise the individual fitting?', while the second tutorial focused on cochlear implantation (CI) and how the acoustician could be involved in fitting and ongoing support in the future. The third tutorial focused on two alternatives to standard speech testing that could be used to predict auditory deprivation and user acceptance of amplified sound in noisy listening conditions. The Acceptable Noise Level (ANL) test and the signal to noise ratio (SNR) test using the Aalenener sentences have been demonstrated as tools to predict acceptance and optimise hearing aid settings. The Thursday educational programme was finalised by a tutorial investigating and demonstrating the use of smart phone applications and to what extent they can affect the individual hearing aid settings. A live demonstration of how to verify smart phone control of hearing aids was included.

On Friday morning, a session was held about hyperacusis, its symptoms, origin, facets, comorbidities, and the quantification and differentiation of types, in order to help the acousticians motivate the patients towards more sound exposure. Finally, a tutorial on audio therapy was offered. Audio therapy should be applied to help the hearing impaired in regaining listening and communication competency after years of deprivation from sound. The advice and guidance on how to listen again and accept amplified sounds is a central task of the acoustician in the provision of hearing aids. The EUHA guideline, 'Audio therapy in audiology' was presented and its implementation discussed.

All tutorials focused on knowledge and guidance related to everyday challenges in the audiology practice with practical examples, useful tools, and discussion. The motivation of the participants to apply and put the new gained possibilities into practice was noticeably high when they were asked afterwards.

Key themes at the trade exhibition included extending made-for-iPhone connectivity to Android as well as rechargeability of hearing aids to more styles and price points. Furthermore, sensor technology is moving into hearing aids and artificial intelligence can start to provide cloud-based machine learning for hearing aid user programmes – both still in early days of development.

Signia by WSAudiology introduced the Signia Xperience product having an integrated acoustic motion sensor to register changing acoustic scenes when moving and then adapting the directionality and noise reduction of the hearing aid to follow the acoustic changes.

Phonak announced more than 1,000000 Marvel hearing aids sold by now and introducing Marvel to their Bolero and Sky series. Roger Direct streaming to Marvel, new app features and their Bluetooth classic connectivity to Android and iPhone tighten this year's innovations up.

Oticon presented their new and most powerful hearing aid family in the market Xceed for adults and Xceed Play for children introducing their feedback breaker technology OpenSound Optimizer to the power segment. Oticon's product portfolio is also extended with a wireless CROS version based on TwinLink™ dual-streaming allowing NFMI-wireless CROS transmission at the same time with 2.4 GHz connectivity.

Widex by WSAudiology presented the BTE 13 D for their Evoke family using MEMS microphones, their SoundSense App applying cloud-based machine learning for user programme settings now integrated with Compass fitting software to give the audiologist access to the cloud and read programme setting changed by machine learning. 

ReSound continued their story of connectivity by leading the development of ASHA – an Android streaming protocol – together with Google and introducing the first wireless CIC in LINX Quattro.

Starkey announced to launch on November 1, an app using the Android ASHA streaming protocol in Google Play. To combine health monitoring technology with hearing aids they use sensors for body and brain tracking and fall detection.

Jinghao China best hearing aids amplifer manufacturer and supplier. all products with CE, RoHS, FDA certificates.

Besides the six major manufacturers and their second brands, I could get news at several labs producing custom made shell and earmolds, enjoy demonstrations of new diagnostic and verification technology at Interacoustics, Diatec, Auditdata and even smaller companies like Auritec. Everybody welcomed me and had news to tell – even though the pace of development is slower in their area.  

Overall, a visit to EUHA is very worthwhile from several points of view – meeting friends and colleagues, collecting news, learning about new audiology topics and expanding knowledge from lectures and tutorials – the sum of the parts makes the whole greater!

Friday, December 13, 2019

what is pocket hearing aids - Jinghao Medical News

The main components of a pocket hearing aid are a microphone, amplifier, and battery in a box. A small wire connects the body to the earphone (or a headphone attached to the ear mold).
Basic Structure of Pocket Hearing Aid
From the perspective of the external structure of the box-type hearing aid, it mainly consists of three main parts: the earphone, the lead and the body (take the JINGHAO box-type hearing aid as an example)

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Amazon hotsale Rechargeable ITE hearing aids factory price.

Thursday, December 12, 2019

How Hearing Works

How Hearing Works

Hearing loss is not just an age-related disability; it is affecting people at younger and younger ages. A 2016 study by McMaster University showed that 28% of participants (between 11 – 17 years old) had the early warning signs of hearing loss, in the form of persistent tinnitus


The Anatomy of the Ear

The outer ear consists of the pinna and the auditory canal. The auditory canal amplifies frequencies in the range 3 to 12 kHz.

The middle ear includes:

    • the eardrum (tympanic membrane)
    • ossicles – the three smallest bones in the human body
    • two muscle tendons
    • two nerve bundles: the vestibular (for balance)
    • the auditory (for hearing)

    The inner ear is filled with fluid and includes:

      • The cochlea (for hearing), which each have 15,000 hair cells

      • The vestibular apparatus

      The auditory cortex is the area of the brain that interprets sounds.

      The eustachian tubes regulate pressure in the middle ear.

How We Hear

The ear (known as the outer pinna) directs sound waves down the auditory canal to the eardrum (known as the tympanic membrane), causing it to vibrate very slightly. The ossicles include: the hammer (malleus), anvil (incus) and stirrup (stapes). They work together as a lever system to amplify the vibrations, which are then passed along to a smaller vibrating membrane on the surface of the cochlea of the inner ear (called the elliptical window).

The mechanical energy of the sound, now translated to a physical vibration, creates compression waves within the fluid-filled spiral tube of the cochlea, which in turn move the tiny hair cells lining the inside of the cochlea. As the hairs move, nerve cells at their base change this motion into electrical signals that are passed along the auditory nerve to the central auditory processing centres of the brain, where the signals are interpreted as recognizable sound.

To learn more about how hearing works, watch this video produced by Rockefeller University.