The Standing Wave

Hey, there!

Where in your home you choose to record your auditions (and work, when you get booked and you use your home studio and equipment) can have very different acoustics depending upon how that space’s walls, floors and ceilings are treated.

But none of those treatments will soundproof the room.

Why all that foam on the walls?

Countless times, a student or client has come to me, proud of the fact that he or she has finally outfitted that second bedroom with acoustic foam, egg crates, carpet or some other treatment.

And sooner or later, they come back to me, trying to figure out why they still hear street noise, airplanes and helicopters overhead, or their neighbors having loud sex, all of which ruins their auditions and production.


Because wall, floor and/or ceiling treatments don’t keep sound out. They just minimize the repetitive, wacky bouncing of sound around the room.

Exercise: Go in any bathroom, with its hard surfaces, tile, mirrors and tubs and showers, and say, loudly, “Ah HAH!” and listen to how long it takes for the sound to decay back to silence.

Then, mosey over to your walk-in closet, with its hanging clothes, irregular surfaces, shoes, ties and so on, and do the same thing. Your shout dissipates pretty quickly compared to the bathroom.

Yet, in both rooms, you can hear planes and air conditioning and those neighbors from outside the room.

(Not that I’ve been in your closet or bathroom.)

When you speak, those repeating “standing waves” of sound are heard by your mic, then absorbed in your recording space by putting treatments on the interior surfaces of rooms, but that treatment does not keep exterior sounds out of that treated space.

That requires isolation from exterior sounds – a barrier of air or water surrounding the room is best. That’s why radio stations and recording studios are built as rooms-within-rooms, and why WhisperRoom and Studiobricks installs work – it uses the air that surrounds it in the room in which you place it as that barrier.

Hope this helps.


9 Responses to 6 Steps to a Perfect VO Demo

  1. Kelli August 18, 2011 at 2:58 am #

    I feel really good about my demo. It is a quick and fun process, even for someone like me who gets very self concious. :)

  2. David Britz September 5, 2011 at 11:25 pm #

    The demos are great. Superb quality. Why go anywhere else?

  3. David Britz October 20, 2011 at 3:51 pm #

    Can’t wait to record my Narration VO Demo!! :))

  4. Mike Brang December 31, 2013 at 9:44 am #

    Having a well-produced demo is one of the most important things in the VO business. I had a number of demos made from other producers in the past and they all had one thing in common — that manufactured, cookie cutter sound!
    What sets David apart from the rest, besides his affordable price and tremendously fast turn around time, is that all of the clips you record with him sound unique. Each spot sounds like an actual commercial you recorded for a job.
    My agent loved the quality and even asked who produced it to refer his other talent there!

    Thanks again, David for producing such a great, high quality demo for me. You made the process relaxing and enjoyable. I urge anyone reading this unsolicited reply to listen to David’s student demos to hear the difference for yourself. Anyone would be lucky to work with him

  5. Kristy Liles February 9, 2017 at 7:04 pm #

    I can not thank you enough. I worked so hard on 15 page IVR project, one day I cryed, look for answers, pull my hear (not really) but I was about until another VO send me this great tool. Thanks!

  6. Frank June 11, 2017 at 9:51 pm #


    When v123 indicates the audition is for a student/ nonprofit are we to assume it is for $0. If so, why does the audition ask for an amount to be entered?

  7. shirley jordan June 12, 2017 at 5:58 pm #

    I did get this scam through Voice 123. In our discourse, they offered me the gig and they gave me the name of a legit local place to record and the same runaround with the money. I didn’t send anything, but instead, I called the studio to make sure the booking was for the day we set up, and lo and behold, the people there had no idea what I was talking about. I then tried to call back my “contact person” who was setting this up and there was a fax machine beep on the other end. I immediately contacted Voice 123 and told them what had happened. You know what they say…if it sounds togaed to be true, it probably is. Thanks for the reminder!

  8. shirley jordan June 12, 2017 at 5:59 pm #

    …too good…not togaed.
    The one time spell check didn’t work!

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