About Careers Internship MedBlogs Contact us
Medindia LOGIN REGISTER
Advertisement

New Device That Helps Patients Regain Lost Voice In the Offing

by VR Sreeraman on October 27, 2012 at 3:27 PM
Font : A-A+

 New Device That Helps Patients Regain Lost Voice In the Offing

A new device which may help people who have lost their voices speak again is being developed by researchers.

For little girls who have lost their voices, for instance, the improved prostheses can produce age-appropriate voices, instead of the usual voice of an adult male.

Advertisement

These advances in artificial voice production have been made possible by results achieved in a research project led by Samuli Siltanen, professor at the Academy of Finland's Computational Science Research Program (LASTU).

One of the fundamental problems of speech signal analysis is to find the vocal cord excitation signal from a digitally recorded speech sound and to determine the shape of the vocal tract, i.e., the mouth and the throat, according to a Finland statement.
Advertisement

Women's and children's voices are trickier cases as the higher pitch comes too close in frequency to the lowest resonance of the vocal tract.

"Most speech sounds are a result of a specific process. The air flowing between the vocal folds makes them vibrate. This vibration, if we could hear it, would produce a weird buzzing sound. However, as it moves through the vocal tract, that buzz is transformed into some familiar vowel," explained Siltanen.

Singing, says Siltanen, is a perfect example of this interplay between the vocal cord response and the vocal tract. "When we sing the vowel 'a' in different pitches, our vocal tracts remain unchanged but the frequency of the vocal cord excitation changes.

"On the other hand, we can also sing different vowels in the same pitch, whereby the shape of the tract changes and the excitation stays the same," Siltanen said.

Source: IANS
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
What's New on Medindia
Are Menopause Symptoms Troubling You?: Try these Options
Vaccination  And Counter  Measures Against  Monkeypox
Indian Railways Special Concession on Health Grounds
View all
Recommended Reading
News Archive
Date
Category
Advertisement
News Category

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Laryngeal Cancer 

Most Popular on Medindia

Sinopril (2mg) (Lacidipine) Find a Hospital Find a Doctor Vent Forte (Theophylline) How to Reduce School Bag Weight - Simple Tips Iron Intake Calculator Daily Calorie Requirements Sanatogen Post-Nasal Drip Blood - Sugar Chart

Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

© All Rights Reserved 1997 - 2022

This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use