Hi, I thought, thats interesting, lets do a search on google. So I search for digital microphone. And came up with: http://www.ptang.com/digmic/showpatimg For those who don't want to bother with the link: It's a patent for putting the A/D converter in the microphone housing! Guess Neumann will have a patent problem with their new Solution-D.
It shows again: those patents are rediculous. Ruben On Tue, Mar 05, 2002 at 08:56:42AM +0000, Nick Bailey wrote: > actuallyt you can get digital microponones: they measure the > displacement of the diaphram by counting fringes on a laser > interferometer, so there never is an analogue signal (except > the physical movement of the membrane itself). > > Damned if I can find a reference to it now... I hope it > wasn't an April Fools' Day joke 8-) > > I think there may be switched-mode audio power amplifiers > too, but I doubt they will ever be HiFi compared with high > end linear designs. > > N/ > > > On Tuesday 05 Mar 2002 4:34 am, you wrote: > > > Well, you'll have to have an A/D converter somewhere in the > > line. If the optical cable is digital, then the A/D > > converter would live in the microphone. But there isn't > > any way to remove the A/D conversion. You wouldn't need a > > D/A converter unless you wanted to playback. > > > > Digital versus analog is orthagonal to electrical versus > > optical. > > > > Taybin
