SDA Surround Technology Whitepaper

-justin-
-justin- Posts: 891
edited November 2005 in Speakers
Thought you guys might be interested in reading a whitepaper, written by Matt Polk, about the SDA Surround Technology he wrote to explain how the SurroundBar works:

SDA Surround Technology Whitepaper

~Justin
Post edited by -justin- on
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  • hoosier21
    hoosier21 Posts: 4,413
    edited November 2005
    Thanks Justin!

    Now get in there and PDF more of the that good stuff and post it on the site somewhere!

    That would be nice,

    Russ
    Dodd - Battery Preamp
    Monarchy Audio SE100 Delux - mono power amps
    Sony DVP-NS999ES - SACD player
    ADS 1230 - Polk SDA 2B
    DIY Stereo Subwoofer towers w/(4) 12 drivers each
    Crown K1 - Subwoofer amp
    Outlaw ICBM - crossover
    Beringher BFD - sub eq

    Where is the remote? Where is the $%#$% remote!

    "I've always been mad, I know I've been mad, like the most of us have...very hard to explain why you're mad, even if you're not mad..."
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  • TroyD
    TroyD Posts: 13,085
    edited November 2005
    Yeah, punk. What he said! :D

    BDT
    I plan for the future. - F1Nut
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  • Larry Chanin
    Larry Chanin Posts: 601
    edited November 2005
    -justin- wrote:
    Thought you guys might be interested in reading a whitepaper, written by Matt Polk, about the SDA Surround Technology he wrote to explain how the SurroundBar works:

    SDA Surround Technology Whitepaper

    ~Justin

    Hi Justin,

    Thanks very much.

    However, I don't think the document was accurately reproduced in it's pdf form. It would appear that most of the diagram's figure numbers and labels are missing or misplaced. For figure 2 (the only figure with a figure number and labels) the labeling doesn't seem to make sense. Perhaps some subscripting was left off the diagram.

    Larry
    Larry's Home Theater
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  • -justin-
    -justin- Posts: 891
    edited November 2005
    Larry,

    I'll check with our designers to see what's up. Thanks for pointing that out.

    ~Justin
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  • VR3
    VR3 Posts: 28,776
    edited November 2005
    Those lil diagrahms confused the hell out of me... and I even know what SDA technology is.

    *hides*
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Larry Chanin
    Larry Chanin Posts: 601
    edited November 2005
    Hi,

    For those interested, it appears that the SDA™ Surround Technology White Paper has been corrected.

    Larry
    Larry's Home Theater
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  • VR3
    VR3 Posts: 28,776
    edited November 2005
    The first diagram... with the dude playing the instrument.

    Its wrong... lol

    Sound dosnt travel that way... ever

    Unless its trying to show how its recorded...which the sound still dosnt travel that way..
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • hoosier21
    hoosier21 Posts: 4,413
    edited November 2005
    Vr3MxStyler2k3 wrote:
    The first diagram... with the dude playing the instrument.

    Its wrong... lol

    Sound dosnt travel that way... ever

    Unless its trying to show how its recorded...which the sound still dosnt travel that way..

    lol It's just a pictorial diagram to help you understand how SDA works lol

    lol it is not meant to show how sound travels lol

    lol
    Dodd - Battery Preamp
    Monarchy Audio SE100 Delux - mono power amps
    Sony DVP-NS999ES - SACD player
    ADS 1230 - Polk SDA 2B
    DIY Stereo Subwoofer towers w/(4) 12 drivers each
    Crown K1 - Subwoofer amp
    Outlaw ICBM - crossover
    Beringher BFD - sub eq

    Where is the remote? Where is the $%#$% remote!

    "I've always been mad, I know I've been mad, like the most of us have...very hard to explain why you're mad, even if you're not mad..."
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  • dorokusai
    dorokusai Posts: 25,577
    edited November 2005
    It's a 1 dimensional diagram genius.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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  • VR3
    VR3 Posts: 28,776
    edited November 2005
    lol... but lol
    lol... it lol
    lol... suggests lol
    lol... that lol
    lol...
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Larry Chanin
    Larry Chanin Posts: 601
    edited November 2005
    Vr3MxStyler2k3 wrote:
    The first diagram... with the dude playing the instrument.

    Its wrong... lol

    Sound dosnt travel that way... ever

    Unless its trying to show how its recorded...which the sound still dosnt travel that way..

    Hi,

    The diagram is intended to describe the concept of Interaural Crosstalk, not how sound travels.

    The first graphic is merely showing a live venue, with a single monoaural source. In this case the purple arrows show sound traveling from the single source directly to each ear, i.e. no crosstalk.

    After recording from two microphones and playback to stereo speakers, we have two artifical sources of the sound that reconstruct the two-channel recording to "simulate" the live sound. Unfortunately, an artifact of having two sources instead of one is that now each ear hears sounds from two sources thereby creating Interaural Crosstalk distortion of the sonic image.

    This is all the figure intends to illustrate.

    Larry
    Larry's Home Theater
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  • dorokusai
    dorokusai Posts: 25,577
    edited November 2005
    I think Trey needs a Pop-Up book style of explanation.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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