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Thread: Speaker noise

  1. #1
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    Speaker noise

    I have an ASUS P4P800SE motherboard as part of a custom made unit which I purchased last year. I elected to go with the on-board sound setup. I attached some Logitech Z640 speakers that I am happy with. But when I start up or shut down the PC, I get a nasty, loud snap. What does this mean and how should I address it? TYIA

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    Re: Speaker noise

    I know this is a silly question (and apologies if it sounds patronising), but are you sure that the speakers are connected to the correct jack on the motherboard? If you connect speakers to a MIC socket you'll get the symptoms you describe.
    <font color=448800><font face="Comic Sans MS"><big>Lyra J </font color=448800></font face=comic></big>
    <img src=/S/flags/UK.gif border=0 alt=UK width=30 height=18> Ducking the arrows in Robin Hood country <IMG SRC=http://www.wopr.com/w3tuserpics/Lyra_J_sig.gif ALT="No, Admins, no! I'm sorry, okay!" title="No, Admins, no! I'm sorry, okay!">

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    Re: Speaker noise

    I believe they are, in that they match color-coded jacks on the motherboard. I'll double check.

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    Re: Speaker noise

    Speaker thump has been around since the beginning of amplifiers - better electronics, in particular high powered electronic use a timing relay to allow all the transient voltages to stabilized before applying power to the speakers just for that reason - and to keep these high amplitude signals from thumping a hole in your speakers.

    Besides ensure all the cables are connected properly, and the Z's amp is properly grounded, there's not much you can do. It happens as circuits are enabled and disabled during the boot up and shutdown sequences - I doubt a new card will resolve it. My suggestion is to do what everyone should always do when dealing with audio equipment and speakers, get in the habit of turning down the volume before turning off, and make sure the volume is all the way down again before turning on. When you power up, wait a few seconds before turning the volume up.
    Bill (AFE7Ret)
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    Re: Speaker noise

    Ok. Thanks for the observations. So long as the phenomena is not doing damage to anything, I can live with it. I'll take you advice and turn the speakers off and on. At least I now know.

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