Thread: M-S
View Single Post
  #4   Report Post  
Mike Rivers
 
Posts: n/a
Default


In article writes:

I am experimenting with M-S mic technique and need some advice on relative
levels between the mid and the side tracks.


Simple - what sounds right is right.

When checking levels, I noticed that the mid capsule's response was
significantly less than that of the side capsule despite pre-amp levels
being set identically.


Are you sure you didn't have the carioid capsule facing backwards? Or
that the microphone was working correctly? It's unusual that you'd
have more "side" sound pressure than "direct to the front" sound
pressure.

What I am wondering is now that I would like to transform the M-S pair into
a LR stereo downmix, is it necessary for me to boost the signal of the mid
track relative to the side track?


First off, are you aware that when you "downmix" you need to both add
and subtract the mid and side mics? As a starting point, it's
conventional for the in-phase and out-of-phase side channels to set
about 6 dB below the mid channel. But to use your ears, start with the
mid signal (only) set so that you have plenty of headroom, then bring
up the + and - side signals together (equally) while listening. Stop
when you hear good stereo, and if you hear a hole in the middle, stop
and back up until the hole fills in.

If the mid signal by itself doesn't sound really good (it will be mono
of course) then something is very wrong with the mic or the recording
setup.

If you could cc your replies to me via e-mail as well, this would be greatly
appreciated.


That's a paid service. Read the newsgroup and learn.

--
I'm really Mike Rivers )
However, until the spam goes away or Hell freezes over,
lots of IP addresses are blocked from this system. If
you e-mail me and it bounces, use your secret decoder ring
and reach me he double-m-eleven-double-zero at yahoo