headset's microphones adds lot of noise to the voice
hello. my problem is:
I had an old headset (headphones + mic) that -the microphone, adds lots of 'background high level noises while talking thru it.
when I bought it (about 5 years ago) it uses to work just fine.
So, I begin using a 'big hand-microphone' from aiwa (the shape of those used on stages, etc..) and it works just fine: no background noise at all.
thinking the old headset was broken, or it were reaching the end of it 'usable life', and tired of handling a big microphone that unables me to type while talk, I decide to buy a new headset.. but my surprise is that the new one.. adds exactly the same garbage-noise than the old one!!
(-so, it has nothing to do with the 'oldness' of the device, but with it design ... anyway.. why the first headset uses to work just fine when I bought it? more electric devices plugged nowadays in the same plug than the pc?--I changed the pc surge to a plug where it were alone, and the noise remains)
something I notice, is that the big-aiwa mic delivers a lower volume than the headsets .. maybe it's coz the headset's mics are of more 'high-impedance'(?) fomenting this way the garbage-noise?
think it's all about filters stuff.. but .. which kind of filter? and what to filter: the pc electric supply, or the mic by itself.. and the most important: how to do it??
the brand of the new headset is "satellite", and the old one, has erased it brand.. but.. it's of the same 'popular & low cost' kind as the new one.
the big mic one -as I said, is an aiwa.
I'm running slackware 10.2 kernel 188.8.131.52
any suggestion of how to fix it, it would be appreciated, coz .. I really want to use the new headset
thanks in advance.