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Thread: Speaker Placement a Key to Imaging

  1. #31
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    Maybe Rob can start a new thread on room acoustics.

  2. #32
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    Quote Originally Posted by Mr. Widget View Post
    I have never been terribly impressed with the performance of acoustic tiles.

    Perhaps you could consider something like this?

    Widget
    I had thought of that sort of thing but feel that it may interfere with the front and rear surround channels and/or block the projector to be truly effective.

  3. #33
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    Quote Originally Posted by toddalin View Post
    I had thought of that sort of thing but feel that it may interfere with the front and rear surround channels and/or block the projector to be truly effective.
    That maybe the case.

    Iíve got six Dolby Atmos top loudspeakers and no issues. Room treatment is only ever used to solve a problem. My ceiling treatment is only in one location.

    My main treatment is at the front and rear and the front sides. My panels are proper acoustic absorbers from 250.+ hertz. Not foam tiles. l have five bass traps for below 250 hertz.

    Before this l had slap echo and the room ringed out. I opened up a stud wall and introduced some room treatments. It now sounds great.l would k also had some first reflections due to my room being a bit narrow (4m)

    It depends if you think you need to introduce room treatment or not.

    If you donít then leave it well alone. Too many people think itís a magic bullet like a lot of things in the HiFi scene. In some situations the shape or size of the room will dictate your options. In general small rooms are more difficult to work with than larger rooms.


    Cheers

    Ian

  4. #34
    Senior Member DerekTheGreat's Avatar
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    Quote Originally Posted by Odd View Post
    Ian, who is selling this?
    Yes, much interest for this.

    Also, no more pics of 'Vettes! I'm bummed. Got moved to "Off Topic Forum", no doubt where dreams go to die as one has to apply for access. (which I did, but haven't got yet..) Makes me wonder how many other members do not have access and thus do not see threads from within.

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  6. #36
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    There is a way to qualitatively judge the "liveness" of a room and really determine what it is doing to the sound. You make a YouTube video in the sweet spot and compare that to the original. For example:

    https://youtu.be/krlBTPPehm0

    https://youtu.be/GXE_n2q08Yw

  7. #37
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    Thanks for the link, Ian
    43XX (2235-2123-2450-2405-CC 3155)5235-4412-4406-4401-L250-18Ti-L40-S109 Aquarius lV-C38 (030) 305P MkII

  8. #38
    Senior Member BMWCCA's Avatar
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    Quote Originally Posted by toddalin View Post
    There is a way to qualitatively judge the "liveness" of a room and really determine what it is doing to the sound. You make a YouTube video in the sweet spot and compare that to the original. For example:

    https://youtu.be/krlBTPPehm0

    https://youtu.be/GXE_n2q08Yw
    Good suggestion.
    But, way too many variables introduced depending on what microphone you use for your recording, etc. A camera or iPhone recording of anyone's system in their room just won't produce the same result as replaying a commercial recording. I've never attached any credibility to recordings posted on YouTube of anyone's system. Sorry!
    ". . . as you have no doubt noticed, no one told the 4345 that it can't work correctly so it does anyway."óGreg Timbers

  9. #39
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    I have lurking here for many years and it is a whole bunch of fun. I don't know much about imaging, soundstage and speaker placement, I just put the where they fit and they sound great to my ears. The wall unit came with the house. The room is 12 x 16. The room treatments are stuff. I got the Altec Model 15's about 1980.
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  10. #40
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    I was pretty proud when I got my dad to put the left speaker on the left side and vice-versa, not to mention toe'd in and at the same level. Previously, you might find a speaker stuffed in a corner on the floor and another one on a shelf at the other end of the room. Polarity was another thing that didn't matter to him either.

  11. #41
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    Quote Originally Posted by BMWCCA View Post
    Good suggestion.
    But, way too many variables introduced depending on what microphone you use for your recording, etc. A camera or iPhone recording of anyone's system in their room just won't produce the same result as replaying a commercial recording. I've never attached any credibility to recordings posted on YouTube of anyone's system. Sorry!
    Sure things vary, but recognize that we are not listening for quality, only the "liveness" of the room and obviously one needs a fairly accurate portrayal of the source to come close to the unadulterated YouTube video.

  12. #42
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    Hi Todd,

    Probably the more important point is what to do about liveliness?

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