Newsgroups: alt.slack,alt.music.4-track,rec.audio.tech
Subject: Re: Computer microphone into classic 1/4 mic-in
References: <[email protected]> <[email protected]> <[email protected]>
just john  writes:

> On 08/29/2006 08:58 PM, jwvm told the world:
> >> So some sort of small adapter would be really nifty.  Do inexpensive
> >> versions exist, and  if so, whaddya call them?  My search engine shots
> >> haven't yielded any happiness on this.  Closest answer required surgery
> >> on the mic to supply power.
> >>
> > Computer microphones use electret capsules and require a bias voltage
> > to operate. For more information, see this link:
> > http://www.epanorama.net/circuits/microphone_powering.html
> >
> 
> IE: You're ALSO suggesting surgery.  As I thought I'd implied rather
> strongly above, I KNOW THEY REQUIRE POWER!
> 
> I was asking for an off-the-shelf solution, and what it's called by
> those people who sell them.  No way such things don't exist.
> 
> Cutting open each new headset after I'd sat on the previous one is not
> what I'm after.

You don't necessarily need to cut open the headset. 
The document  
http://www.epanorama.net/circuits/microphone_powering.html 
has chapeter "Powering multimedia microphones using external power supply" 
that gives you information how to build external adapter box 
that you can plug between the headset mictophone connector 
and the 1/4" microphone connector.  


-- 
Tomi Engdahl (http://www.iki.fi/then/)
Take a look at my electronics web links and documents at 
http://www.epanorama.net/