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Thread: Logitech Hardware

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    Oh Crumbs.... Biscuit's Avatar
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    Logitech Hardware

    I stumbled across this...

    http://jdc.parodius.com/logitech/

    and realized both my MX518s (1st and 2nd gen) also emit a high pitched noise, its not loud and doesnt bother me in the slightest but i was curious if you guys can hear it too?

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    Senior Member Lanky123's Avatar
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    Re: Logitech Hardware

    2 years since I got my mx518 and I'd never noticed it either. I can hear it, but only if the mouse is < 6 inches or so from my ear.

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    Re: Logitech Hardware

    same...

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    Senior Member Lanky123's Avatar
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    Re: Logitech Hardware

    Not quite sure how that guy on that site thinks this is a major design flaw. He must have exceptionally sensitive hearing to have even noticed it in the first place.

    The sounds appears to be roughly at the limit of what humans can hear, so ~20kHz. Presumably this means something tiny is vibrating at that frequency in the mouse...? That site says:

    The noisy part is the IR (infra-red) LED transmitter used in handling scroll wheel functionality.
    IR is a much higher frequency though so I fail to see how that could be causing it. 300Ghz+ apparently.

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    Re: Logitech Hardware

    I agree this guy is taking things a bit far and doesnt seem to have any understanding of resonance and frequencies TBH. i still rate logitech as number 1

    But please make it clear to them that this issue is quite major, as it could possibly lead to a class-action lawsuit due to the health problems it can cause (damage to hearing, induced headaches, and possible nausea).
    made me giggle though

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    Re: Logitech Hardware

    His site says the G5 laser mouse is also affected (same model number as mine) although mines is fine no noise or movement.

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    Re: Logitech Hardware

    The frequency may be outside your range, everyone is slightly different.

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    Re: Logitech Hardware

    Quote Originally Posted by mrt9888 View Post
    His site says the G5 laser mouse is also affected (same model number as mine) although mines is fine no noise or movement.
    He does say it's a lot quieter with the G5. If this guy thinks it's quiet it's probably almost non existant. Also as Biscuit says, the frequency could be just too high for you to hear. It would be interesting to see if there is more noise at slightly higher frequencies - ie what this guy's apparently able to hear. I might see if my cat takes notice of the MX518 later...

    June 6, 2007: Tested Logitech G5 Laser Mouse (dual side button version). This seems to be a good alternative; the noise is still there, but decreased greatly.

    June 7, 2007: I've decided to keep the Logitech G5 Laser Mouse (dual side button version) to see if the level of noise increases over time with scroll wheel use.

    July 7, 2007: Logitech G5 Laser Mouse (dual side button version) still being used; noise remains at a tolerable level.

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    Re: Logitech Hardware

    I'd never noticed it before, but sticking it on my ear, I can pick it up...

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    Re: Logitech Hardware

    Might be some babies could get some hearing problems if they play on the computer to much... But hey! You ever seen a baby play counter strike? xD

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