Quote 1: That style rings alarm bells, but I'll give it the benefit of the doubt.
Quote 2: Unless you have a pure conductive loss, which is relatively rare, and tends to be early in onset, hearing aids that "sound natural" are not doing their job. Hearing aids have a similar job to that of noise reduction in the K3, with the added complication that they have to cope with a possibly very limited dynamic range between threshold of hearing and threshold of pain. They have to both stress the frequencies needed for speech comprehension and apply frequency selective dynamic range compression. Although modern hearing aids use a lot of echo cancellation to stop feedback whistling, deep in the ear ones so not have the level of isolation between input and output to allow for high powers and still maintain feedback suppression. The probable advantage of the deep positioning is that the feedback is less affected by the external environment, so you there are less occasions on which you have to wait for the feedback canceller to retrain. [email protected] wrote: > As a hearing-impaired operator, I wanted to let you all know about a > fairly recent hearing-aid technology. It is manufactured by a company in > Newark, California, and the device is called a "lyric." > The difference is nothing short of dramatic. Sounds are much more natural > sounding. There are no whistles like one gets with a partially in the > canal device. > -- David Woolley "we do not overly restrict the subject matter on the list, and we encourage postings on a wide range of amateur radio related topics" List Guidelines <http://www.elecraft.com/elecraft_list_guidelines.htm> ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
