Technology

Why Lantos Technologies’ Search For The Perfect Earmold Is A Game-Changer For The Hearing Aid And High-End Audio Industries

Lantos Technologies, a Cambridge, Massachusetts startup company working with patented technology developed at MIT, is on a quest for the perfect ear mold fitting.

With $1.6 million in venture capital funding, the company is developing a unique scanner that will create an exact digital image of the inner ear, enabling ear mold manufacturers to produce hearing-aid shells, earphones, and other in-ear devices that provide a perfect custom fit for the wearer.

If Lantos is successful, its product could be a game-changer not only for the hearing-aid industry, but also for makers of a broad array of high-end audio electronics and hearing protection equipment. Perfect-fitting earmolds enabled by the Lantos scanner could pave the way for entirely new consumer products that are currently impractical to bring to bring to market, because the cost of ensuring an accurate fit for every user would be prohibitive.

Audiologists and hearing-aid customers put up with the necessary evil of taking ear mold impressions for hearing aids and other select products only when they must, because there is currently no alternative. Getting a good ear mold is a messy process that involves injecting soft silicone putty into your ear down to within millimeters of your ear drum, leaving it there for several minutes until it starts to dry and harden, and then pulling it out and sending it to an ear mold manufacturer. All the while you keep your fingers crossed, hoping the impression doesn’t have so many flaws that you have to perform the procedure all over again. Read more

Phonak Spices Up Its New Ambra And Audeo S Hearing Aids With A Next-Generation Digital Signal Processing Platform

Worldwide hearing-aid market leader Phonak is rolling out its new Ambra and Audeo S families of hearing aids based on its “Spice Generation” sound processing and fitting platform. At the heart of the new platform is the new Spice digital signal processing (DSP) chipset, which has twice the processing power, is twice as fast and has three times the memory than the company’s previous DSP platform. The Spice Generation platform also enables smaller form factors, which the company calls “CountourDesign,” and it comes with a new “Target” software system to make it easier for audiologists to program the new hearing aids to more exactly meet their patients’ needs.

The company calls its new Phonak Ambra hearing aid family “the premium flagship of the Phonak Spice Generation.” It features true binaural communication between both hearing aids in a set, enabling users to more easily locate sound and hear better in challenging listening environments, “adaptive intelligence” which personalizes the hearing instrument by enabling it to adapt to the users’ environment, and a smaller, more elegant design. Among other things, binaural communication enables a “DuoPhone” feature which allows the user to have phone conversations streamed to both ears simultaneously for better telephone comprehension. Binaural communications also enables “StereoZoom,” which creates a bi-directional network of four telephones from two hearing instruments to locate sound and focus on a single speaker while suppressing other sounds, and “auto ZoomControl” which automatically determines where the dominant voice is in the room and focuses on it.

In addition to superior next-generation performance, the Ambra hearing aids are 20 to 30 percent smaller than Phonak’s earlier Exelia models. They are available in all form factors, including both behind-the-ear (BTE) and custom in-the-ear formats.

The Audeo S hearing aids, also based on the Spice Generation platform, are the next generation of Phonak’s popular Audeo tiny open-fit, behind-the-ear products with speaker-in-the-ear — or as the company puts it, “canal-receiver technology” (CRT). The Audeo S aids come in three Model versions at three performance and price levels. Audeo S MINI is the standard performance level, Audeo S SMART offer power performance, and Audeo S YES offers super-power performance. Because of improved feedback canceling and noise suppression, the super-power model widens the fitting range of the open-fit products to extend into severe-hearing-loss territory. According to a presentation at the EUHA (International Union of Hearing Aid Acousticians) conference last October by Valentin Chapero, CEO of Phonak’s corporate parent Sonova Group, the market for CRT’s is growing faster than any other kind of hearing aid.

ReSound’s Innovative Remote Microphone Technology Will Be Available With ReSound Alera Family Hearing Aids

When ReSound introduced its be by ReSound hearing aid several years ago, it was the first significant innovation in form factors I had seen in a while. By separating the microphone from the unit containing the digital signal processor (DSP) and receiver (speaker), be by ReSound opened up new possibilities for fitting in-the-ear (ITE) and completely in the canal (CIC) custom hearing aids. But be by Resound is an open-fit hearing aid for a limited range of fittings, mainly patients with mild hearing loss at higher frequencies.

Now with its announcement of its Remote Microphone (RM) Technology, ReSound is extending the concept to its popular ReSound Alera hearing aids and other custom hearing instruments. The result is a new class of hearing aids that will provide significant benefits — including more natural acoustic performance, more amplification in a smaller form factor, reduced feedback, and less wind-noise interference — for a broad range of users with mild, moderate and even severe hearing loss. Read more

Invisible Hearing-Aid Implant Developer Envoy Medical Will Answer $140 Million Question This Year

Envoy Medical’s Esteem hearing-aid implant is a revolutionary new approach to hearing restoration. Completely unlike any other hearing aid or cochlear implant on the market, it provides significant functional and cosmetic benefits: no device is required for the outer ear, so sound is not obstructed as it passes through the ear canal; there is no artificial amplification of sounds before they reach the ear drum, which means sound is processed naturally through the outer ear; and the implanted system is completely invisible.

FDA approval of the patented system in 2010 cheered Envoy Medical’s all-star cast of investors, who so far have anted up $140 million in capital. But now it’s time to answer the big question, which is whether the Esteem invisible hearing aid will correct damaged hearing any better than the latest generation of less expensive and less invasive digital hearing aids. At a reported cost of $30,000, the implant is five-to-ten times the cost of today’s highest-end in-ear digital hearing aids, so the Envoy’s Esteem hearing system will have to prove it’s got a superior value proposition as it makes its way into the marketplace in 2011. Read more

Phonak Dynamic Soundfield Technology Turns The Classroom Into A Giant Hearing Aid

Soundfield classroom amplification systems have improved the education and lives of thousands of schoolchildren who otherwise would miss valuable instruction simply because they cannot hear their teachers well enough to understand what they are teaching. Now Phonak has put its vast experience designing hearing aids to use with a next-generation soundfield system featuring a 12-speaker array that reduces echoing and reverberation and automatically adjusts frequency and volume levels to achieve optimum signal-to-noise ratios in changing listening environments.  The new Phonak Dynamic Soundfield system essentially turns the entire classroom into a giant hearing aid that can dramatically improve comprehension and learning. Read more

Two Cheers For On Semiconductor’s Acquisition Of Hearing-Aid Chip Maker Sound Design Technologies

On Semiconductor’s recent acquisition of Sound Design Technologies reduces the number of independent manufacturers of digital signal processor (DSP) chips for hearing aids, lessening competition in an industry that is already highly concentrated. Less competition is not a good thing over the long run, because when fewer manufacturers control a market, they can charge higher prices for the products they’ve already built. They can also invest less in new technology innovations because there are fewer competitors out there likely to leapfrog them. However, over the short term, On Semiconductor’s acquisition acquisition of Sound Design may actually be a very good thing for the hearing industry. Here’s why.

Ever since Sound Design spun out of Canadian semiconductor maker Gennum several years ago, it has been the only independent DSP chip manufacturer focused on the hearing aid market. Many hearing-aid manufacturers who do not design and build their own chips use Sound Design’s chips to power their hearing aids. DSPs are specialized semiconductor products whose hearing-aid manufacturer customers expect lower costs and higher performance every year along with more miniaturization and special features. DSPs allow hearing-aid makers to provide better feedback canceling capability, automatic adjustment to different listening environments, automatic adjustment of directional microphones, wireless communication between left and right hearing aids to provide better hearing “in stereo,” Bluetooth integration, and numerous other features that have dramatically improved digital hearing aids in recent years.

Sound Design’s new Wolverine DSP is a high-performance digital engine for hearing aids that is smaller than earlier DSPs, consumes less power, delivers more processing capability and enables easier and more flexible development and deployment of custom sound-processing algorithms and special applications by hearing-aid manufacturers. Clearly the company’s focus on the hearing-aid market has paid off.

But chip design, manufacturing and distribution is a highly capital-intensive business, and Sound Design on its own was nowhere near as large as many of the semiconductor companies it would have to compete against. Without being able to achieve economies of scale from a manufacturing operation selling a lot of products, it’s hard for a chip company to keep costs as low as customers want.

Therefore being acquired should enable Sound Design to leverage On Semiconductor’s mass-production capabilities to keep costs down. It will also be able to tap On Semiconductor’s deep bench of designers with extensive experience developing power and signal management semiconductors, logic chips, discrete components and custom devices — all of which can be applied to next-generation hearing-aid DSPs. That’s a benefit to hearing-aid manufacturers, who need to continue integrating all kinds of new capabilities into ever-smaller form factors. On Semiconductor spun out of Motorola several years ago and is now a leading publicly held semiconductor company with nearly $2 billion (USD) in annual revenue, so it’s got all the resources a small manufacturer of hearing-aid DSPs should need. If it allows Sound Design’s team of executives to continue focusing as relentlessly on the hearing-aid market as they have in the past, the acquisition could be a win-win-win for On Semiconductor, Sound Design, hearing-aid manufacturers who depend on them, and hearing-aid users who will continue to benefit from new technologies and better performance at lower costs.

However, that’s a big “if.” Read more

VitaSound Neuro-Compensator Applies Brain Science To A Unique And Potentially Revolutionary New Sound Processing System For Hearing Aids

VitaSound Audio, Inc., a young hearing-aid company in Canada, has come up with an entirely new approach to sound-processing software for hearing aids that could fundamentally change the way we think about compensating for damaged hearing. I got a demo of VitaSound’s Neuro-Compensator technology several months ago and have been struggling ever since to come up with appropriate words to describe it. “Unique,” “new,” “unprecedented” and “potentially revolutionary” are the best I can do for starters.

The Neuro-Compensator sound processing system is based on nearly two decades of research at McMaster University in Hamilton, Ontario, into how the human brain comprehends the signals processed by the auditory system, from the middle ear through the auditory nerve. The researchers mapped the signals produced by hundreds of auditory inputs processed by people with healthy hearing, coming up with a hugely complex model of “normal” hearing response to sounds ranging from human speech to music to pure tones to rush-hour traffic to cocktail-party noise. Then they developed the Neuro-Compensator software to compare the norm to that of a person with damaged hearing, and to produce a hearing-aid amplification program that not only amplifies the frequencies where hearing has been lost, but also filters out sounds that a healthy auditory processing system would normally suppress. The benefit is better comprehension because the system constantly adjusts amplification at multiple frequencies in response to different sounds to match the auditory profile of a normal, healthy auditory system responding to various listening environments. Read more

Can Hearing Aids Make You Smarter? Research On Cognitive Hearing and Listening Fatigue Says They Can — Is The Industry Finally Listening?

Hearing aid manufacturers have finally started listening to ten years of academic research into concepts known as “cognitive hearing,” “listening fatigue” and “cognitive fatigue.” It took them long enough, but I’m not complaining, because at least they are finally claiming to attack the problem of hearing loss at its roots.

In recent announcements of their next-generation hearing aids, industry leaders Starkey Laboratories and Oticon both claimed their new products would ameliorate “cognitive fatigue” and therefore improve not only hearing but also the ability to listen and understand. Since the invention of the hearing aid, the industry has focused mostly on simple amplification that makes noise louder and therefore easier to hear. Too often, hearing aids amplify the noises uses don’t want to hear and actually make it more difficult to comprehend the sounds — speech — they do want to hear. Now the industry is finally trying to address the critical issue of better cognition.

While neither Starkey nor Oticon went so far as to say their hearing aids would make you smarter, that’s really the value proposition the industry should start trying to deliver. No, hearing aids can’t make you smarter all by themselves. But hearing well can enable you to listen well, and listening well can enable you to better understand what you hear, better understanding makes it easier for you to communicate in real time with other people, and intelligent communication lets your brain be as smart as it naturally wants to be. Now think of the same scenario in reverse: no hearing assistance means less listening means less understanding means less intelligent communication. In other words, failure to get a good pair of hearing aids can make you appear to be a whole lot stupider than you really are.

The catch is what constitutes a “good pair of hearing aids.” Dr. Brent Edwards at the Starkey Hearing Research Center in Berkeley, California has been looking at the issue of “cognitive hearing” for years, and his work is finally working its way into the products Starkey is delivering to the marketplace. Read more

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