Recent content by James85

  1. J

    How many employed design engineers read /post

    I don't think so, anyone who tries to explain an emotive piece of music in scientific terms probably has some form of autism.
  2. J

    How many employed design engineers read /post

    I would suggest that there are probably three catagories of people rather than two: 1. blind faith adherents to what the magazines and marketers tell them 2. blind faith adherents to what science can tell them ("if we can't quantify it then it must be bunk.") 3. Those who know the limits of...
  3. J

    Room Acoustics

    Just in the context of a home listening room, I expect a typical printed canvas won't have enough density to really affect the absorption much below around 4000Hz. Sorry, I should have said air doesn't need to pass through, rather than sound.
  4. J

    Room Acoustics

    It isn't quite true that sound needs to pass through, Ecophon and others make absorbers encapsulated in a film which give very good performance. The main thing is that the surface layer isn't too dense/thick, so a canvas can work. You may loose a bit of absorption in the very high frequencies...
  5. J

    Room Acoustics

    Hi, I think you're right to tackle the acoustics in the room rather than speakers etc. Almost any system will sound bright if the room sounds bright. You would also improve this like stereo imaging and get a 'cleaner' sound which eq'ing won't help with. I'd be a bit careful with the wallpaper...