They developed "HearingSupport4Telecommunication", a new technology improving not only the speech quality for people without or with little hearing impairment. It also allows the hearing impaired unlimited communication on the phone or the Internet without any hearing aids.
The solution developed by the Hearing, Speech and Audio Technology project group of Fraunhofer IDMT adapts the speech signal to a convenient level, independent from the real phone connection. In addition, a speech support function can be switched on to increase the listening comfort for people with no or little hearing impairment.
User studies indicate that hearing impaired people can talk on the phone without any hearing aid, thus being able to communicate without limitations. This technology is integrated directly into communication paths like phone networks, conference or telephone systems. HearingSupport4Telecommunication works with existing devices, so there is no need to buy new equipment.
Various preset hearing profiles allowing optimal intelligibility can be selected by the user according to individual preferences. This way, every phone call is adapted to the hearing and the perceived quality is clearly improved through a constantly better understandable sound impression.
"With our presets, we can cover up to 85 percent of all typical hearing impairments. The system adapts quickly and easily to the user and improves hearing and speech quality significantly", explains project manager Dr. Thomas Rohdenburg the benefits of the new technology.
For HearingSupport4Telecommunication, the Oldenburg scientists have adapted innovative signal processing strategies that previously have been used in hearing aids only. This way, frequency bands with low sound level are amplified while frequency bands with high sound level are not amplified. Loudness adaption and speech enhancement are carried out by efficient multiband dynamic compression. In addition, psychoacoustic models are used to optimally adjust the level of noise reduction to the current signal.
Fraunhofer IDMT presents HearingSupport4Telecommunication at the International Trade Fair for broadcasting and television, IBC, in Amsterdam from September 9 to 13, 2011. Visit us at the Fraunhofer booth in hall 8, stand B 80.
Stefanie Theiß | Fraunhofer-Institut
New Technologies for A/V Analysis and Search
13.04.2017 | Fraunhofer-Institut für Digitale Medientechnologie IDMT
On patrol in social networks
25.01.2017 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO
Strong light-matter coupling in these semiconducting tubes may hold the key to electrically pumped lasers
Light-matter quasi-particles can be generated electrically in semiconducting carbon nanotubes. Material scientists and physicists from Heidelberg University...
Fraunhofer IPA has developed a proximity sensor made from silicone and carbon nanotubes (CNT) which detects objects and determines their position. The materials and printing process used mean that the sensor is extremely flexible, economical and can be used for large surfaces. Industry and research partners can use and further develop this innovation straight away.
At first glance, the proximity sensor appears to be nothing special: a thin, elastic layer of silicone onto which black square surfaces are printed, but these...
3-D shape acquisition using water displacement as the shape sensor for the reconstruction of complex objects
A global team of computer scientists and engineers have developed an innovative technique that more completely reconstructs challenging 3D objects. An ancient...
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
26.07.2017 | Event News
21.07.2017 | Event News
19.07.2017 | Event News
26.07.2017 | Physics and Astronomy
26.07.2017 | Life Sciences
26.07.2017 | Earth Sciences