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My rooms sound problems....help

Discussion in 'Home Cinema Building DIY' started by micb3rd, May 1, 2002.

  1. micb3rd

    micb3rd
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    Hi basically I am converting my Bedroom into a small personal Cinema, it it a small room cinema it is 10.5 ft by 10.5 ft by 7 ft in size.

    I am bulding the sound system slowly but the the moment I use Mission M73 floorstanding mains and have a fairly nice Denon amplifer to power them.

    The main problem is that the treble has a twang sound to it both on DVD's and 2 channel music.

    If I clap my hand in the room I get a nasty hi pitch twanging sound.

    The if I rememmber correctly the room had some work done to it about 5 years ago extra plasterboard with a reflective rear metal like substance on the back (Like Kitchen foil) was built up over the top of the prevous walls of the room.

    I was wondering if some sort of Treatment, cloth or curtains could be used to tame my treble colouration.

    Can anyone help me?
     
  2. micb3rd

    micb3rd
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    Oh yes and one more thing, the twanging seems to come from the corners of the room.
     
  3. RichardH

    RichardH
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    It does sound like you have too many hard surfaces in there - is the floor carpeted or not? If not, I'd get a decent sized rug down, and maybe experiment with a couple up on the walls - or maybe thick curtains.

    Can't imagine that the plasterboard you mention would be the cause.

    Not sure how much help this is, but good luck!
     
  4. micb3rd

    micb3rd
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    Yep I have a think carpet on the floor, I was thinking of covering the wall closest to the speakers and having a dead end down there and a live end up with me.
     
  5. RichardH

    RichardH
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    I'm suprised that you're getting that much out of the room if you have a carpet down already - I'd try dumping some big cushions from your sofa or something in there and seeing if it makes a difference - be a pain to buy a load of extra stuff and it not make a difference....
     
  6. Gary Lightfoot

    Gary Lightfoot
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    A 'rule of thumb' is to have the 'screen wall' end of the room absorbtive (sp?) and the side walls below ear level too. The rest should be live.

    I did this by putting carpet on my screen wall, and onto the walls up to approx ear level. The nasty hand-clap reverberation then dissapeared and I don't seem to have any noticable side effects from doing this either. See the pics of my ht room on my website.

    HTH

    Gary.
     

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