The main source of published research on real time noise reduction of audible signals seems to be the hearing aid industry. I just came across this article suggesting that hearing aid noise reduction strategies make people think that the noise is less sever, but don't actually make the signal any more intelligible.
Trends in Amplification, Volume 10, No. 2, June 2006: Acceptance of Background Noise, Mueller et al. <http://tia.sagepub.com/cgi/reprint/10/2/83.pdf> Obviously being perceptually more desirable is good for marketing, which is largely based on feeling, rather than fact, and it may also be of value in that, over longer periods, reduced fatigue improves performance. In the hearing aid world, it increases compliance (the number of people who actually wear their aids). On the other hand, if anyone comes up with a algorithm that actually increases intelligibility in the "cocktail party" context, I think the hearing aid industry would love to know! -- 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
