High pitch from speakers

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  1.    #1

    High pitch from speakers


    I recently built a new pc (specs in profile) and wanted to try the onboard audio option on the mobo instead of my X-fi titanium fatality pro card from my previous system. I am hooked up to Logitech 5.1 z5500 system, Yes old but still rocks.. After the install i noticed with the onboard audio I wasnt getting 5.1 through my Optical cable so i decided to order 3.5 mm wires from amazon (link at bottom) and i noticed a very annoying high pitch coming from speakers so I though maybe its the onboard audio and reinstalled my sound card in the new system and still have the same noise. Is this possibly from the cables itself? My headphones have no distortion whats so ever. Here is both a link to the cables and a video of noise. Wanted true 5.1 but if i have to use dts and optical on soundcard will do but not something im hoping to do.
    Sorry! Something went wrong!
    <a href="https://www.amazon.com/gp/product/B01M63MW5P/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&amp;psc=1" target="_blank" rel="nofollow">

      My ComputerSystem Spec

  2. Caledon Ken's Avatar
    Posts : 14,338
    Windows 10 Pro x64 Build 1809
       #2

    Very well could be interference.

    When you say using Headphones you don't hear are they connected to rear or front ports?

    When you use sound card are you still using the new Amazon Cables?

    Is Wifi enabled, have you tried to disable for a test? (Airplane mode enabled)
      My ComputerSystem Spec

  3.    #3

    Ok after some further testing it seams to be making the noise using both the optical and the new amazon cable. The headphones are corsair pro usb but i figured if it was some kind of ground issue i would still hear through them as i did with a past system. I just tried your suggestion on wifi and it makes no impact..
      My ComputerSystem Spec

  4. Caledon Ken's Avatar
    Posts : 14,338
    Windows 10 Pro x64 Build 1809
       #4

    Chasing interference or what could be interference is tough.

    Are you overclocked? Have you try without?

    If you move any of the internal cables around does the pitch / intensity change?

    Are you using power bar or UPS, any change if you go right to wall plug?

    Where is your main wireless router?

    Do you have another power supply you could hook up? (Yes I know, PIA)
      My ComputerSystem Spec

  5.    #5

    Yes overclocked to 5.2 but even at idle when the proc is sitting at 800mhz and voltage is at 92w to cpu it still does it. Ill have to undo my cable management and move things around and see if that helps. Im using a powerbar so will try straight to wall before trying wires. Wireless router has already been moved and made no diff. No other power supply. im using Corsair HX1000 plat cert and its the same powersupply i had in last system with no issues.


    Will update tomorrow after playing with some wires.
      My ComputerSystem Spec

  6. jimbo45's Avatar
    Posts : 7,171
    Windows / Linux : Centos, Ubuntu, OpenSuse
       #6

    Hi there
    @Urbwolf

    H Gan daginn !!

    (From your screenshot I think you understand !!!)

    try these tips

    1) swap live / neutral wires around in the main power to the computer

    2) ensure system adequately earthed

    3) ensure volume setting etc not too high for speakers

    4) it's possible that the output from the computer's pre-amp is just too high for the speakers you are using -- remember old school stuff maximum power transfer -- impedance of source and sink should be equal -- not sure what typical computer speakers are but usually I'd think of the order of 8 Ohms whereas your amp might have a different impedance. Line out voltage on the analog output might be as high as 1V -- once you start extracting Digital Audio all sorts of problems occur.

    5)The best way by far and this gets round all these problems is to use an Optical -->jack / RCA type cables (if you don't have a jack ) audio converter. very cheap and effective.

    Cheers
    jimbo
      My ComputerSystem Spec

  7.    #7

    jimbo45 said: View Post
    Hi there
    @Urbwolf

    H Gan daginn !!

    (From your screenshot I think you understand !!!)

    try these tips

    1) swap live / neutral wires around in the main power to the computer

    2) ensure system adequately earthed

    3) ensure volume setting etc not too high for speakers

    4) it's possible that the output from the computer's pre-amp is just too high for the speakers you are using -- remember old school stuff maximum power transfer -- impedance of source and sink should be equal -- not sure what typical computer speakers are but usually I'd think of the order of 8 Ohms whereas your amp might have a different impedance. Line out voltage on the analog output might be as high as 1V -- once you start extracting Digital Audio all sorts of problems occur.

    5)The best way by far and this gets round all these problems is to use an Optical -->jack / RCA type cables (if you don't have a jack ) audio converter. very cheap and effective.

    Cheers
    jimbo
    Good morning to you too.

    1) Have never tried something like this.
    2) I checked my ground and everything is grounded well.
    3) It makes noise even with system volume on mute.. Made sure all mic's are muted also.
    4) Specs of speakers.. Im in now way a expert and have no idea what any of it means past watts
    Total FTC power: 505 watts RMS
    Sub-w
    oofer: 188 watts RMS (into 8 ohms, @ 100Hz, @ 10% THD)
    Satellites:
    Left/Right: 62 watts RMS x 2 (into 8 ohms, @ 1khz, @ 10% THD)
    Center:
    69 watts RMS (into 8 ohms, @ 1kHz, @ 10% THD)
    Rear Left & Right: 62 watts RMS x 2 (into 8 ohms, @ 1kHz, @ 10% THD)
    Total Peak pow
    er: 1010 watts
    Maximum SPL: >115 dB
    Frequency response: 33 Hz — 20 kHz
    Amplifier:
    Ultra-linear, high-capacity analog
    Signal to noise ratio:
    >93.5 dB, typical 100
    Input impedance: 8,000 ohms

    5) it happens with either optical or rca cables. Will a audio converter filter out whatever is causing it?

    Thanks for help!
      My ComputerSystem Spec

  8. jimbo45's Avatar
    Posts : 7,171
    Windows / Linux : Centos, Ubuntu, OpenSuse
       #8

    Urbwolf said: View Post
    Good morning to you too.

    1) Have never tried something like this.
    2) I checked my ground and everything is grounded well.
    3) It makes noise even with system volume on mute.. Made sure all mic's are muted also.
    4) Specs of speakers.. Im in now way a expert and have no idea what any of it means past watts
    Total FTC power: 505 watts RMS
    Sub-w
    oofer: 188 watts RMS (into 8 ohms, @ 100Hz, @ 10% THD)
    Satellites:
    Left/Right: 62 watts RMS x 2 (into 8 ohms, @ 1khz, @ 10% THD)
    Center:
    69 watts RMS (into 8 ohms, @ 1kHz, @ 10% THD)
    Rear Left & Right: 62 watts RMS x 2 (into 8 ohms, @ 1kHz, @ 10% THD)
    Total Peak pow
    er: 1010 watts
    Maximum SPL: >115 dB
    Frequency response: 33 Hz — 20 kHz
    Amplifier:
    Ultra-linear, high-capacity analog
    Signal to noise ratio:
    >93.5 dB, typical 100
    Input impedance: 8,000 ohms

    5) it happens with either optical or rca cables. Will a audio converter filter out whatever is causing it?

    Thanks for help!
    Hi there
    need to think a bit more --something is incompatible.

    An Audio converter usually works very well though - the better ones will allow 5.1 etc as well.

    BTW check on Analog that the speakers are properly connected (LH and RH wires the same (+ and - wires). The easy way to check this is to place the speakers almost touching apart facing each other -- swap one of the connectors and see if bass increases or decreases - if it decreases then your speakers are "anti-phase" so you need to swap the wires on one of the speakers.

    Check also no Microwaves / blu tooth stuff near the sound system. Sometimes high video from TV's etc can cause interference although these days Monitors are usually good -- computer speakers in any case should be magnetically shielded (no stray magnetic fields from stray electric sources such as 50 / 60 Hz mains "hum" etc.

    Failing all those I'd just do what "Old fashioned engineers" do -- just give the whole thing a twacking great bash !!!!.

    Loose cabling / unseated GPU and other cards are often a culprit as are some cheaper USB HDD's and internal HDD's -- The fans as well as being noisy in an audible sense are electrically noisy too.

    Cheers
    jimbo
      My ComputerSystem Spec

  9.    #9

    Interesting enough i moved the internal usb going from my 2 kraken x62 to motherboard to a internal usb hub and the noise is unnoticeable now unless you put ear right up to speaker so i think they might be the issue. I checked the mobo grounds and everything comes back grounded.
      My ComputerSystem Spec

  10. Caledon Ken's Avatar
    Posts : 14,338
    Windows 10 Pro x64 Build 1809
       #10

    Nice job finding it.
      My ComputerSystem Spec


 
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