Nobody downloaded yet

Acoustic simulation of cochlear implants in reverberation - Essay Example

Comments (0) Cite this document
Summary
The cochlear implant is a minute electronic device that aids a profoundly deaf person or a person with hearing difficulties to sense a sound signal. This implant is also referred to as the bionic ear.The device works by stimulating the auditory nerves located inside the cochlea with an electric pulse…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER91.9% of users find it useful
Acoustic simulation of cochlear implants in reverberation
Read TextPreview

Extract of sample
"Acoustic simulation of cochlear implants in reverberation"

Download file to see previous pages The cochlear implant is a minute electronic device that aids a profoundly deaf person or a person with hearing difficulties to sense a sound signal. This implant is also referred to as the bionic ear.The device works by stimulating the auditory nerves located inside the cochlea with an electric pulse. The implant consists of two portions. One part of the device sits behind the human ear while the second part is implanted under the skin. The device does not amplify the sound but stimulates any working auditory nerves (NIDCD, 2007).Alesandro Volta who developed the battery, placed metal rods and when he connected them to a 50 volts circuit he experienced a jolting noise, later French- Algerian surgeons, Andr Djourno and Eyries reported that a patient would hear sounds when electrodes were placed on the patient nerves exposed during an operation. In 1957 both French surgeons developed a clinical cochlear implant. This device was inefficient and only provided the patient with the rhythm. In 1961, William house and Doyle James developed a five wire device. This device used five electrodes each applied with the same single signal. The speech signal was modulated to travel at 16 KHz. The device was implanted and functioned better than the French surgeon's equipment. In 1984 the device was approved by food and drug administration (FAD) in the USA. In 1964 some patients were implanted with six channel devices but the recipients did not understand the speeches, the equipment was developed by Blair Simons of Stanford University. Parallel developments of the same device were being conducted at the University of California, the group comprising of Robin Michelson and Michael Merzenich made major medical implants. In 1976 Pialoux, Chouard and McLeod tested an implant device that enabled patients to hear and perceive at least half of the spoken words. In the 1990, miniaturization of the cochlear device dominated the device research. By the year, 2006 most children were implanted with miniature devices that were put behind the ear. On October 2005, 3 people were implanted with Tiki device; this device did not have external components. This device is however not commercially available. Developments have also focused on providing devices that can be implanted on both ears. These devices aid in hearing in a noisy environment. Current development enables the device to be fitted on babies five months old (Deafblind, 2008).

Components of the cochlear implant;
The device has to major components; the external part and the internal part
External part
(A) Microphone.
This device picks the sound from the external environment. Sound waves vibrate a membrane that converts the mechanical energy to electric pluses. (Desloge, et al 1997).
(B) Speech processor
This device comprises of filters that process the signals detected by filtering off the noise giving priority to the audible sounds. The filtered audible signals are then sent to the transmitter.
(C) Transmitter
The processed signals from the speech processors are received by the transmitter. The transmitter comprises of a coil held by a magnet placed behind the ear. The purpose of the transmitter is to transmit signals by electromagnetic induction to an internal receiver.
Internal parts
These parts are implanted inside the skin.
(A) receiver/stimulator
This device receives the signals from the transmitter and converts them to electric pulses. The pulses are then transmitted to the electrodes using cables implanted internally. The receiver is placed in the bone below the skin.
(B) The electrodes
This comprises of 22 electrodes that are wound round the cochlea, they send the impulses to the nerves in scala tympani. The signals are then ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Acoustic simulation of cochlear implants in reverberation Essay”, n.d.)
Acoustic simulation of cochlear implants in reverberation Essay. Retrieved from https://studentshare.org/technology/1509337-acoustic-simulation-of-cochlear-implants-in-reverberation
(Acoustic Simulation of Cochlear Implants in Reverberation Essay)
Acoustic Simulation of Cochlear Implants in Reverberation Essay. https://studentshare.org/technology/1509337-acoustic-simulation-of-cochlear-implants-in-reverberation.
“Acoustic Simulation of Cochlear Implants in Reverberation Essay”, n.d. https://studentshare.org/technology/1509337-acoustic-simulation-of-cochlear-implants-in-reverberation.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
CHECK THESE SAMPLES - THEY ALSO FIT YOUR TOPIC
Acoustic Emission and Vibration
...? Acoustic Emission and Vibration By of Learning: Acoustic Emission and Vibration Introduction Both acoustic emission and vibration sensors have been applied in the development of several monitoring systems that have been conditioned due to their early detection application when it comes to faults arising due to important machinery components. The process of early detection has proved to be a very crucial factor in condition monitoring as well as serving as a basic extended CBM component (Zamada and Masuda, 1999, p. 160). Though the two sensors are effectively applied in this process, there exist several differences in their applications as well as a number of advantages and disadvantages...
4 Pages(1000 words)Essay
MARKETING OF BODY IMPLANTS
...? MARKETING OF BODY IMPLANTS MARKETING OF BODY IMPLANTS Introduction Marketing has been identifiedto belong to a cyclical chain, within which can be found key components and elements such as producers, products, services, marketers, market, strategies, and of course, buyers (Hillman, Withers and Collins, 2006). In one way or the other, all these elements must relate very well and perfectly in order for there to be a comprehensive and successful marketing process. In most cases, the process starts with the consumer or buyer, needing a particular product or service, for which a producer must make available through acts of ingenuity. At other times, the process starts with the producer introducing a product...
6 Pages(1500 words)Essay
Dental Implants
...Dental Implants Dental Implants Introduction Teeth may be lost through dental diseases, trauma or be congenitally absent. Missing teeth and supporting oral tissues have traditionally been replaced with removable dentures or fixed partial dentures permitting restoration of masticatory, phonetic, function, and aesthetics. In 1977, Branemark presented his research work carried out over 10 years showing that bone can grow intimately into contact with the surface of titanium implants (Lindhe et al., 2003). Undoubtedly the now well-accepted concept, termed osseointegration, has been one of the most significant scientific breakthroughs in dentistry over the past 30 years. The achievement of...
8 Pages(2000 words)Essay
Cochlear Implants and How to Clean a Fish as Expository Essays
...Cochlear Implants” and “How to Clean a Fish” as Expository Essays Expository essays describe, narrate, or inform to help readers understand a topic (“The Expository Essay,” 2010). The author can use many methods to do so but they need to focus on one type of organization to suit their intent for writing and the type of information they are giving as shown in “Cochlear Implants” and “How to Clean a Fish.” Authors who write expository essays show that they know a topic and understand it well by writing about it in a logical and concise manner (“What is Expository,” n.d.). In “Cochlear Implants,” the author demonstrates her knowledge...
1 Pages(250 words)Assignment
Cochlear Implant
...Cochlear Implant Introduction The ear is divided into 3 parts (anatomically) as the Outer, Middle and Inner parts. And Cochlea forms the inner part of the year. “The cochlea is the auditory portion of the inner ear. Its core component is the Organ of Corti, the sensory organ of hearing, which is distributed along the partition separating fluid chambers in the coiled tapered tube of the cochlea. The cochlea is divided into three different chambers, each of which is receptive to different frequencies of sound “(Jarvis 2004). Cochlear damage means complete loss of hearing and it can be caused by various factors like exposure to loud noise, meningitis, acoustic tumors or...
5 Pages(1250 words)Essay
Cochlear implants and the debate within the deaf community. Arguing that cochlear implants have been beneficial for the deaf community
...Cochlear Implants and the Deaf Community Medical scientist and technologist with the view of reducing deafness in society developed cochlea implantstechnology. Since deafness is caused by little or no presence of hair in the ear in order to generate auditory signals for the auditory nerve cochlea implantation technology is designed to bypass the outer ear and cause some electrical stimulation of the auditory nerves. This cochlea implant has internal and external devices, which need to be interconnected correctly and surgically implanted to the patient in order to work well (Hladek, 1). There is also part of the cochlea implant that is...
7 Pages(1750 words)Research Paper
Cochlear Implants and the Culture of Deafness
...The Pros and cons of the thinking behind the deaf community’s perception of the social model, medical model and rehabilitation model aspects of cochlear implants. Introduction The cochlear implant is an electronic device, part of which is surgically implanted in the ear and part of which is worn externally like a hearing aid. Cochlear implants have had both positive and negative influence on the education of the deaf. They have caused dissonance among certain members of the deaf community. Such disputes especially arise from disagreements on ethical matters. This essay seeks to discuss the pros and cons of the thinking behind the deaf community’s perception of the social model, rehabilitation model and the medical model aspects... of...
10 Pages(2500 words)Essay
Cochlear Implants - The Future of Clinical Remediation of Hearing Loss
...20 October The future of clinical remediation of hearing loss is the cochlear implants Introduction Hearing loss isone of the most traumatizing things to most people. People suffering from hearing loss are not able to communicate with others effectively. They cannot be served well when they are in need as the society would not even understand what they are saying. As that is not enough, deaf people are discriminated against by the general society. This has made it a challenge for not only the deaf but also people who have deaf children and family members. Advancement in technology has a possible solution for hearing loss; cochlear implant. While some people feel that...
4 Pages(1000 words)Essay
Acoustic emission
...of the acoustic emissions is during the awaited break of the femur in actual time during the arthroplasty of the hip that is not cemented. A series of examinations, monitored using the acoustic emission and authenticated with the method of measuring the strain of the full field, have been conducted involving the insertion into the femora of implants of the hip using a load machine that is hydraulic. The use of sensors embedded on the implant and the femur marked the end of the test with results indicating that the sensor that was mounted on the femur produced greater sensitivity to destroy sources. In as much as the experiment promised good use in the future, more...
7 Pages(1750 words)Essay
Custom Made Cranial Implants
...on the intention of the manufacturer (Chen J et al 52). Consequently, an extra forming region remains generated before the implant CAD file is sent to CAM environment. The purpose of creating extra forming region is because increment sheet forming starts on a flat and horizontal plane. However, the implant produced usually has an irregular perimeter and therefore a region to join the perimeter and the surface of the implant is necessary (Chen J et al 28). The manufacturing schedule of the implant therefore takes place in two phases that is lower support machining to form titanium sheet and the cutting of the implant. The schedules’ characteristics...
9 Pages(2250 words)Dissertation
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Essay on topic Acoustic simulation of cochlear implants in reverberation for FREE!
logo footer
Contact us:
+16312120006
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us