보청기의 다채로운 역사, 최초의 전자 보청기(휴대하기에는 너무 부피가 큼)의 이어 트럼펫부터 디지털 시대로의 트랜지스터 발명까지 살펴보십시오. 또한 ADRO(적응형 동적 범위 최적화) 기술을 새로운 보청기 라인에 사용하는 것을 포함하여 최신 혁신에 대해 배우게 됩니다.
보청기의 역사: 보청기 기술 살펴보기
확대 이미지
크기와 작동 방식에서 오늘날 사용되는 보청기 기술은 100년, 50년 또는 5년 전에 사용된 보청기와 매우 다릅니다. 보청기의 역사는 길고 다양합니다. 최초의 보청기는 전기 없이 작동했지만 최초의 전기 모델은 너무 커서 휴대할 수 없었습니다. 오늘날 디지털 보청기는 개별적이고 가벼우며 다양한 환경에 맞게 조정하고 왜곡 없이 소리를 증폭할 수 있습니다. 그리고 미래에는 전체적으로 보청기 기술이 많이 개선될 것입니다. 그러나 업계만이 향하고 있음을 이해하기 위해 보청기의 역사를 검토하는 것이 중요합니다.
보청기의 초기 역사
우리는 200년 전에 보청기의 역사를 살펴보기 시작했습니다. 귀 트럼펫(청각 장애가 있는 사람의 귀에 소리를 직접 전달하고 매우 기본적인 소리 증폭을 제공하는 데 사용되는 장치 형태의 큰 뿔)의 형태로 도움이 도착했을 때였습니다. 전기없이. 이 트럼펫은 크고 어려웠지만 일부 모델은 하네스로 머리에 착용할 수 있습니다. 기본 기능인 사운드 증폭이 있으며 시끄러운 환경에서 신호 대 잡음비를 개선할 수도 있지만 그 이상은 할 수 없었습니다. 실제로 손을 귀 뒤에 대면 비슷한(그러나 더 작은) 증폭이 이루어집니다. 보청기 기술은 지금으로부터 먼 길을 왔습니다.
전기 보청기의 등장
보청기 기술은 보청기 역사에서 두 가지 중요한 이정표와 함께 급속히 변화하기 시작했습니다. 전기의 출현과 Alexander Graham Bell의 전화 작업입니다. 배터리. 현대 기술은 여전히 헤드셋은 보청기 내부의 작은 스피커를 설명하기 위해 수신기, 전화기의 개념을 사용합니다.
1920년대 초반에 보청기 기술은 진공관의 사용을 통합하여 소리를 증폭하는 훨씬 더 효율적인 방법을 허용했습니다. 그러나 최초의 전기 보청기는 여전히 너무 다루기 어려워 쉽게 휴대할 수 없습니다. 대부분은 테이블 라디오만큼 크고 무겁습니다. 다행스럽게도 보청기 역사에서 중요한 사건이 코앞에 있습니다.
Smaller batteries, smaller listening to aids
One of many first main modifications within the historical past of listening to aids that led to a lower in dimension was the miniaturization of batteries. Beforehand, batteries have been massive, heavy, and couldn’t maintain a cost for a very long time, which makes them impractical to be used by listening to support. Battery packs have to be used within the hearing-impaired individual’s body. Within the Thirties, listening to support expertise has progressed in order that aids might be portable.
The transistor modifications all the things
Nonetheless, crucial occasion within the historical past of listening to aids had not but arrived. It’s the invention of the transistor within the Fifties that modified listening to support expertise fully. A transistor is solely a change that has no transferring components and that has solely two choices: On or Off. Place a number of transistors collectively, nonetheless, and you may get more and more bigger mixtures of on / off switches – the fundamental binary code, and, primarily, a computer in its easiest kind. As well as, the conductivity of a transistor may be manipulated on the premise of the purity of silicon with which the transistor is, offering an infinite variety of potentialities for the transistor can be utilized. Silicon transistors allowed listening to aids to shrink in dimension in order that they’ll develop into “body aids,” finally resulting in listening to support expertise accessible in a dimension that we’re acquainted at this time – with the help that can be utilized discreetly behind the ear and even inside the ear canal.
The Digital Age
Within the mid-Nineties, digital listening to support expertise is usually used. Digital listening to aids enable for extra exact configuration of sound within the ear of the consumer. With digital circuits, the sound might be expanded or decreased as wanted. Packages might be created that might be used, relying on the consumer’s location or wants – extra amplification for quiet settings, for instance, or particular amplification of sure frequencies in loud conditions in order that the consumer can clearly hear the voices of speech, even when surrounded by different noises. Digital products additionally took benefit of compression expertise, the elimination of a annoying aspect impact that has plagued customers all through the historical past of listening to aids – the distortion of the sounds very sturdy.
At this time the expertise of listening to support
At this time, we’re nonetheless shaping the historical past of listening to aids, listening to aids and expertise is consistently being up to date. For instance, new applied sciences are being launched that enable the consumer to be immediately concerned with the set up of your headset. As an alternative of utilizing fundamental prescriptions based mostly on a consumer’s audiogram, testing may be carried out, analogous to the optical check was carried out in an ophthalmologist’s workplace, to fine-tune the listening to support settings for particular consumer. Listening to a slim band of sounds and the sound of sentences to fill out a questionnaire with particular data, finish customers are in a position to modify their listening to support settings to go well with their wants.
Guidelines that make the most of “fuzzy logic” (a system of computer directions that enable the crew to face ambiguities1) are based mostly on among the listening to aids. This permits using these personalized settings to guarantee that the listening to support output is consistently optimized to hearken to the wants of every sound in each setting. Scientific research present that this new technology of listening to support expertise can present consistently enhancing the intelligibility of speech and in quiet noisy environments, extra consolation for the consumer to the presence of loud sounds, larger audibility of soppy sounds And enhancing the standard of sound within the standard amplification schemes 청각장애.
This listening to support expertise will not be provided by all producers, however value it as a result of search can vastly enhance a consumer’s view once you use the assistance. Newer listening to aids are additionally provided with restricted ear occlusion, making them virtually invisible to the consumer and permitting the viewers to proceed to enhance.
As well as, a brand new listening to support expertise often called ADRO (adaptive dynamic vary optimization) is beginning to be accessible from some producers. This is without doubt one of the most important modifications within the current historical past of listening to aids, as it’s a main improve of the normal compression circuits which might be most frequently used with digital listening to aids.
ADRO permits the viewers to assist make fixed changes to its algorithms utilizing fuzzy logic, delivering the consumer the next degree of sound high quality and eliminating the inconvenience stronger sounds extra simply. Echoes are additionally eradicated. The newest technology of ADRO, which fits a step past what was initially provided, is offered by some firms in an extremely low delay product that delivers as much as 32 channels, a big enhance from products that have been beforehand solely provide seven or eight. Some products on this new technology of listening to aids additionally incorporate a brand new, adaptive directional microphone. This thrilling new listening to support expertise offers us a glimpse of what the long run holds.
The way forward for the expertise of listening to support
In addition to the historical past of listening to aids has seen many occasions, the way forward for listening to aids will deliver extraordinarily thrilling new choices for all customers, simply in time for the ageing of the child increase technology. Transducers are getting smaller and on the identical time, circuitry is shrinking quickly. Which means ever smaller, ever extra highly effective listening to aids can be able to being produced. And shoppers will discover themselves accountable for their very own listening to once more, as they develop into much more concerned with the set up and adjustment of their listening to aids. We have come a good distance from ear trumpets, however listening to support expertise continues to evolve with time, and we nonetheless have an extended method to go.