How do I isolate sound between two rooms without using a door?

A couple of friends of mine wish to isolate the sound between the combined living and dining room and the bedrooms of their house. The combined living and dining area joins directly to the main corridor of the house and this main corridor runs the full length of the house to the front door. Access to the three bedrooms is through individual doors that open directly onto this main corridor. Obviously the best way would be two sets of doors with sufficient air between them at the end of the corridor nearest the combined living and dining area but THIS IS NOT AN OPTION, on aesthetic grounds. What else can be done?

The doors won’t mean anything if the walls are paper thin. Which can be soundproofed by the material is not cheap, and you’d have to rip the wall open.

There’s cheaper way like using acoustic tile, but if doors are unacceptable for "aesthetic reasons", then I can’t imagine those being much more attractive.

2 Responses to “How do I isolate sound between two rooms without using a door?”

  1. Rigo Says:

    The doors won’t mean anything if the walls are paper thin. Which can be soundproofed by the material is not cheap, and you’d have to rip the wall open.

    There’s cheaper way like using acoustic tile, but if doors are unacceptable for "aesthetic reasons", then I can’t imagine those being much more attractive.
    References :

  2. Lowalyn Says:

    You can order a Blursion device. It looks like a strip of metal with a row of circles down the spine. It is used in doorways and along walls to stop sound. It puts up an invisible field of super charged ions that will skew sound waves. Sounds that bump into this field instantly get muted. Example, if I set up one of these devices between us, I would sound to you as if I had a mouth full of marsh mellows – even better, I would sound as if I were "underwater" giving you instructions. This device is often used in music studios, because of its ability to block out ambient sound. More importantly, this device doesn’t even exist. You would have to literally blow a hole in reality to get a hold of one, or stretch your imagination to the point of manifestation – like I just did. Now, the question is, “How am I going to get it out of my mind to give it to you?”
    References :

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