[sdiy] computer soundcard mic question

[Andre Majorel]

On 2002-05-29 15:39 -0700, Dean Stiglitz wrote:

> 2.  it's my understanding that on these computer mics, tip is
> signal (and has a voltage riding on it), ring is unconnected,
> and sleeve is ground.

I thought the ring was for the biasing voltage ?

> when i try to lift the ground, i get
> terrible sound, until i reconnect it.

Loud hum is the usual reward for a missing ground connection,
and not only with sound cards mic inputs.

-- 
André Majorel <URL:http://www.teaser.fr/~amajorel/>
std::disclaimer ("Not speaking for my employer");