All that you wrote is correct and valuable.
And then there's my situation...I have my speaker wires coiled, to take up the slack. It turned out that the way the wires were coiled made them act like an antenna and I was picking up a garbled radio signal.
Live and learn.
Steven
"Vanguard" <(E-Mail Removed)> wrote in message news:(E-Mail Removed)...
> "Gustaf" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
>> This is an HP Pavilion ZE2372EA laptop, with WinXP SP2.
>>
>> I hear a clearly audible background noise (white noise), even though
>> I've checked the "Mute all" checkbox in Volume Control. If I turn up
>> the volume, there's more noise, but my guess is that this noise is the
>> usual noise you'd expect to hear when you push the volume up high, and
>> the noise I hear constantly comes from another source. Because I hear
>> the noise even before Windows has started, or when I'm in the BIOS
>> setup. I wonder if this problem is really connected to (or can be
>> solved from) Windows at all. Shall I look elsewhere for a solution, and
>> if so, where? There are no sound card settings in the BIOS, and I got
>> the latest drivers.
>
>
> Adjust the volume level in the mixer control so WAV is at mid-level and so
> is the master volume control. Then adjust the volume control on your
> speakers down from their max setting. The problem is with the noise in the
> speakers because you probably have *their* gain (volume) set to max. That
> is why you are hearing the noise before Windows is even loaded. By setting
> the mixer levels at midpoint and then putting the speaker volume at what
> would be considered normal listening levels you get the proper range of
> software volume control. Alternatively, you could set the software mixer
> levels at maximum and then adjust the speaker volume controls (while
> listening to a "loud" music CD) to whatever you consider is the loudest
> level that want to hear from them, then readjust the software mixer to what
> you consider normal volume levels. It is unlikely that you want the noise
> and distortion that is present when both speaker and mixer volumes are set
> to max.
>
> For example, with my speakers, I know from experimentation that rotating
> their volume knob to the max position and then reducing by 10 indents sets
> them to a gain level that is devoid of noise and gives me the proper sound
> level when the mixer is set to midpoint to give me what I consider a proper
> volume for listening to music CDs. If I occasionally want the volume up, so
> I raise the mixer/software volume levels but don't touch the speaker volume
> control. I've already set the mixer levels up to their highest slider
> positions and then set the speaker volume control at the max volume level
> that is comfortable for me to listen to for extended durations (at that
> means the speaker volume control is not at its max setting). I then move
> the mixer sliders down to more normal listening levels.
>
> It is possible that even with speaker volume controls set to less then their
> max settings and with reduced mixer slider settings that you still get the
> white noise. Have you tried using better speakers cables (that have a
> shield) than some cheapie 2-wire lamp cord wire? Then it is a problem with
> your sound card, especially if using onboard audio, or with a cheap set of
> speakers, or both. It is easier to get a better set of speakers to check if
> the noise goes away (with mixer sliders at max and by reducing the speaker
> volume control to less than max). Otherwise, the problem is with your sound
> card or onboard audio. However, if it is not white noise but a buzz then
> you probably need better cables or need to move away transformers, like the
> kind at the end of power plug, away from your computer or speakers. If you
> have speakers anywhere near your computer, and especially near the monitor,
> you obviously should be using *shielded* speakers (and the cord needs to be
> properly shielded and have a good ground connection on both ends).
>
> If you have no volume/gain control on your speakers, or setting them on
> their lowest gain level where the noise is still present, and because you
> are hearing the noise with no OS loaded, you have cheap speakers or
> low-grade amplifier(s) within and you need to get some where you can control
> their volume, or you need better cables, or you have noisy electronics
> nearby, or you have noisy power coming in (and need to filter it), or you
> have a low-end consumer-grade computer with a cheapie sound card or audio
> circuit. Just walk over to your stereo system and set its Treble slider all
> the way up and then crank up the volume (while NOT playing from any source)
> and you'll hear the white noise from your stereo speakers, too (unless you
> have very inefficient or dull speakers or very good amplifiers with noise
> cancellation on the inputs).
>
> --
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