Hi Kerry, It was the mute switch that did the trick. Many thanks. My older set of headphones, which did not have a mike, had a switch selecting between stereo and mono, but this one has the mute switch which you mentioned, and unmuting it makes it work fine. Chuck On Sat, May 08, 2010 at 06:27:13AM +0800, Kerry Hoath wrote: > Often hidden in the mixer is a "mike boost" option which can help a lot, > Of course it goes without saying that you have your mike volume nice > and high? > > Most sound cards provide plug-in power for condenser microphones > and some do not. > Perhaps your high impeedance microphone is a dynamic rather than > condenser type? This would explain why it works and the other one > doesn't. > Also make sure with noise cancelling microphones that the flat side > of the mike is in line with your mouth, even a twist out by 15-20 > degrees can cancel your noise. > > Some microphones are on a fixed boom so twist with care. > > It has also been my experience that some headsets have a mute > switch, check that because sometimes even when muted a little noise > gets in to make you think it is working. Unmuting it gives you far > more spectacular results. > > Hope some of this helps. > Regards, Kerry. > > ----- Original Message ----- From: "Chuck Hallenbeck" > <chuckh at ftml.net> > To: "Speakup is a screen review system for Linux." <speakup at braille.uwo.ca> > Sent: Saturday, May 08, 2010 4:57 AM > Subject: Re: noise-canceling mikes, how to use them > > > >Hi, > > > >On Fri, May 07, 2010 at 02:57:44PM -0400, Kitty Litter wrote: > >> Buy a mixer. > > > >Have you used a noise canceling mike via a mixer? If so, what mixer? > >Are there any more direct ways of taming such a mike that anyone has > >used successfully? > > > >Chuck > > > > > >-- > >The Moon is Waning Crescent (34% of Full) > > My web site: www.hallenbeck.ftml.net > > Audio editor weblog: edway.wordpress.com > > -------- > >Yesterday is a memory, Tomorrow is a vision, Today is a bitch! > > > >_______________________________________________ > >Speakup mailing list > >Speakup at braille.uwo.ca > >http://speech.braille.uwo.ca/mailman/listinfo/speakup > > > > _______________________________________________ > Speakup mailing list > Speakup at braille.uwo.ca > http://speech.braille.uwo.ca/mailman/listinfo/speakup -- The Moon is Waning Crescent (33% of Full) My web site: www.hallenbeck.ftml.net Audio editor weblog: edway.wordpress.com -------- Yesterday is a memory, Tomorrow is a vision, Today is a bitch!