Can you do a phase cancelling setup?

Requires 2 mics with enough spacing between the 2 for you to speak (4 inches
or so is practical unless you are miking several people?)

The 2 mics are wired out of phase (or in opposite phases) the 2 phases are
summed together.  Any input that arrives at both mics simultaneously is
canceled out.  Any input that favors 1 mic over the other cannot be
cannceled out & is passed thru (Ideally you would speak into 1 mic, not
both).

Not exactly a plug & play solution but not too hard to implement.

Kev
HKC Inc


> I am preparing a tutorial for my new application using Lotus' ScreenCam.
>
> I have done all the video recording and now have to add the voice track.
>
> This is easily done (at least in theory) using the mic attached to the
> sound card of my PC.
>
> The problem is:
>
> all sort of noises enter my room from down the street and in all the tests
> I made the noise is well audible in the recorded track.
>
> Still I have all my things here and would hate to migrate to a different
> place.
>
> Also I guess that if I don't rent a professional recording room - what
> would be expensive and troublesome - I will find noise - more or less -
> everywhere.
>
> Is there a hw solution (a special mic ?) to filter out the noise when
> recording and/or a sw solution (Goldwave ?) to filter out the noise from
> the WAV file after the recording ?
>
> Thank you
>
> Duilio Foschi