RE: Noise cancelling headphones / car Right. I hate to be out of touch with the car. Like to drive with the window open so's I can be more in touch with the road too. Would be relatively easy to to filter out (from a mic viewpoint, for sampling, but not easy for headphones) noises above the conversational vocal range. (What is that 4kHz?) That's a good idea, Paul. It isn't the kind of selective filtering in the vocal range others want, but it is cheap and probably effective for a speech recognition system (that it looks like I'm gonna have to make rather than buy, ugh.) So, does anyone know the official range of the human voice in conversation? Is it 1-4kHz? Thanks- Jay On 12.2.98 8:52 PM, Paul Archer said: >Well, Sony (and I'm sure others) makes a set of noise-cancelling headphones >that work remarkably well. They can't filter out background noises like a TV >in the distance, but they do a hell of a job on hums and engine noise. I >tried a friend's, and the refrigerator fell dead silent when I flipped them >on. He says he can't use them when he drives, because his car is >cantankerous, and he can't hear the engine to know if something is wrong >with it. > >Paul Archer > >PS. I just realized that the friend in question, Jay, is on this list now. >So if there is interest, he can say more about them than I can. > > >On Wed, 2 Dec 1998, Jeremiah Alfrey wrote: > >> is it at all posible to write some software that would help drown out >> natural sounds and heihten important ones like conversations. >> >> I know that the people at the hearing aid companies have been working >> on this sort of thing for a while. >> >> -- >> Subcription/unsubscription/info requests: send e-mail with subject of >> "subscribe", "unsubscribe", or "info" to>> Wear-Hard Mailing List Archive (searchable): http://wearables.ml.org >> > >---------------------------------------------------- >A key to the understanding of all religion is that >a god's idea of amusement is Snakes And Ladders with >greased rungs. -- Terry Pratchett, "Wyrd Sisters" >---------------------------------------------------- > >-- >Subcription/unsubscription/info requests: send e-mail with subject of >"subscribe", "unsubscribe", or "info" to
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