How to get rid of "Plug In Power"? Trying to connect decent mic into laptop mic in.

[esaias]

Hello!

I need some help with this:

I need to set up a small meeting room's Skype setup.

There is a laptop and a boundary mic, Beyer MPC 66

Problem is that laptop's mic input outputs +5v between tip and shield, I understand that this is meant to power those small electricet mics?
The Beyer mic is works with this 5v but the output is very low. I do have a separate 48v phantom supply and a small ART mic pre but neither of those work because the mic input from laptop feeds them that forementioned 5 volts.

And last but not the least, there is no option for turning off the 5v supply on the soundcard drivers.

So, any ideas how to connect these, do I need to apply some electronics to get rid of the 5v? Current wiring is: mic + -> ring, mic - -> tip, mic shield -> shield.

Thanks,
-Tomi

[Matt Syson]

Hi
A simple capacitor, say 100uF 10 Volt or greater, in series with the tip will stop the 5 volts from messing up your alternative mics. Positive of cap goes to tip of jack, negative to the mic or preamp.
Matt S

[esaias]

Thanks!

Now I proceed to make a cable which has a cap crammed inside a connector to make this set up look nice and clean.

-Tomi

[Matt Syson]

Hi
Consider a tantalum type, they are small.
Matt S