In addition to a mic's off-axis rejection, I can't put enough emphasis on the usefulness of a good "voice channel" mic preamp that, among other things, has a downward expander/noise gate to kill sound in between sentences. It takes a little bit of fiddling to set up, to make sure it's not truncating trailing-off words or bouncing along on the noise floor, but otherwise I consider it a secret weapon.

But back to the original request: Are you looking at a portable sound booth because the environment is just too noisy? Or do you merely need to tame a not-too-bad environment, which can be done by moving equipment on the other sides of walls or putting them in enclosures, a few sound deadening panels to knock down the liveliness of a room, and maybe a mic screen like the Mud Guard to cut down further on off-axis noise and reflections?

 - Chris

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Chris Meyer | Crish Design
http://www.crishdesign.com

On Apr 3, 2013, at 8:11 AM, Jim Curtis wrote:

The iso booths are good solutions for noisy environments, but not always necessary.

What are your VO needs, and in what kind of environment will you be recording?   You might not need anything any more complicated than something like this:

http://voiceoveressentials.com/content/portaboothArticle.htm

There are several versions of this concept available.

And there are also several microphones that record voice very well, and reject off-axis sounds, so that you don't need a perfect environment to record in.  Shure SM7 and an Electro Voice RE20 are de facto standards in radio stations throughout the world in rooms with computer monitors and less than perfect acoustics.  They're also dynamic mics, which mean they don't need phantom power, and are less prone to plosive overloads.



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