digital sound motherboards

February 1, 2011 at 10:57:36
Specs: Windows 7, 16GB
I do not want my computer to provide digital sound. The motherboard is an Asus M4A87TD with an AMD Phenom II 3.4 GHz with Win7 running 16GB of memory. It hums like a Ferrari. Except that the motherboard has the standard S/PDIF outlet AND a fibre outlet for digital sound. The human ear cannot hear digital sound; only analog sound. I have Home Theatre but I do not want to plug a computer's chirp's and whistle's into my Digital Amplifier (it has obviously Digital-to-Analog converters in it and Analog-to-Digital convertors in it. I am not a gamer, I just want performance. Are there analog sound cards (obviously not Sound Blaster Live etc.) if I disable the onboard audio Digital hardware.
VIA VT1818 8-channel High Definition Audio Codec. There are are 2 settings in the BIOS, DIsable HD Audio Azalia Device(Enabled). I disabled this. No luck.
A front panel setting:
([AC 97] sets the front panel audio audio connector mode to legacy AC'97
[HD] " " " " " " " " " to high def. audio.

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February 1, 2011 at 11:08:30
Go into the BIOS & disable the onboard sound, then boot into Windows & uninstall the sound drivers. Problem solved - no more sound to annoy you.

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February 1, 2011 at 11:21:01
If you want performance, then why would you choose an analog signal over digital?

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February 1, 2011 at 11:23:45
The human ear cannot hear digital sound; only analog sound.

Thats very observant of you. That why all sounds come out of a loudspeaker or headphones which are analogue devices. If you have an amplifier with digital input I would use it, after all, if the sound is being produced by a computer, whether it is digital or analogue output, it always starts of as digital. The only analogue sounds sources are vinyl records or tape. Best to keep it digital and just do one D-A conversion in the amplifier before it is fed to the speakers. The D-A converter in an stand-alone amplifier is likely to be of far batter quality then one in any but the most expensive sound cards. The beauty of digital signal processing is that it is less prone, almost immune, to interference where analogue signals a very prone to interference.

If you have a hum it has nothing to do with whether it is digital or analogue, More to do with a miss-match between the ground of the computer and the amplifier, inducing mains hum. That can usually be cured by taking a ground wire from the chassis of the computer to the chassis of the amplifier so that both devices are at the same ground potential.


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