Acoustic simulation of cochlear implants in reverberation - Essay Example

Only on StudentShare

Extract of sample
Acoustic simulation of cochlear implants in reverberation

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. ...
Download paper

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…
Author : laurenspencer

Related Essays

simulation technology
Practically, simulation technology also lets corporations to foresee the unseen. It also lets organization to identify and prioritize corrective action that will create a real imperative to a development in conjunction with actual results that reveals worth of the business (Durlach & Anne 1995). Organizations - in both public and private sectors - have long used such tools for good management science to trim down stupidities and put cost outside of business practices. But regardless of that - and regardless of the huge investment in technology sector that has been made over the past fifty...
6 pages (1506 words) Essay
A Typology of Simulation Fidelity
Research designates that interactive as well as active modes of learning are more engaging to majority of adults than passive watching or listening. Generally in the field of aviation education, learning takes place in a sequence of clearly instituted, progressive measures: The student fundamentally learns what the teacher provides them to learn, and act upon on how the teacher had instructed them to perform. Students make and use of the information or achieves the actions when the instructor advises them to do so. On the other hand, the learners at this initial stage do not essentially have a...
5 pages (1255 words) Essay
workplace simulation
The company prides itself on having a large customer base and manufacturing plants in China, San Jose, Georgia and Michigan. This expansion and apparent success may be attributed to the organizations commitment to R&D, customer satisfaction, quality management, employee satisfaction and clear vision of the future. This is clear from the company's mission statements. However, to further enhance and maintain this success Riordan Manufacturing Inc. intends to take advantage of more sophisticated, state of the art information systems technology into its HR department. This is successfully achieved...
9 pages (2259 words) Essay
Simulation
Now the application of cost accounting system came into practices for the fact that that the firm had to come up with a decision i.e. whether to accept this order or otherwise, since bulk orders go for discounted prices, but the exceptional quantity makes the fixed cost distribute over larger volumes....
3 pages (753 words) Essay
Health and Wellness Hospital Network Simulation
Use new technology to transfer information faster and more efficiently. Use the new system for better decision-making by providing accurate and timely information. Use the new system effectively to enhance HEWE's image. Comply with market and regulatory requirements as prescribed by Center for Medical Systems (CMS) and Health Insurance Portability and Accountability Act (HIPAA) regulations regarding data safety regulations, client confidentiality, and data security. Train employees to use the system independently and efficiently. Ensure that trained employees are capable of becoming superusers...
2 pages (502 words) Essay
Dental Implants
There are two categories of complications that occur in implant therapy: biological and technical. Biological complications refer to disturbances in the function of the implant characterized by biological processes that affect the tissues supporting the implant. They can be distinguished into early and late losses. Biological complications also include reactions in the peri-implant hard and soft tissues, and the detection of such complications requires adequate clinical, and radiographic examination methods. Mechanical complications serve as a collective term for mechanical damage of the...
8 pages (2008 words) Essay
Reverberation Time and Absorption Coefficients
In any enclosed space the sound remains in air even after the source of sound is taken off. This 'hanging on' of the sound in a room is known as Reverberation and the time required for the sound to decay to one millionth of its initial value (or 60 dB) after the source has stopped, is termed as 'Reverberation Time'. The R/T of any room depends upon the shape and size of the room, sound frequency, and the amount of absorption offered by the boundary surfaces. This experiment aims to find out how the boundary wall formation and other parameters affect the R/T and absorption coefficients of a...
6 pages (1506 words) Lab Report
Got a tricky question? Receive an answer from students like you! Try us!