[PLUG] sound "card" voltage levels

[John Jason Jordan]

On Sat, 29 Dec 2012 15:46:35 -0800
Denis Heidtmann <denis.heidtmann at gmail.com> dijo:

>I have an Asus M3N78-VM MB with on-board sound only.  In trying to
>debug overloading of signals using Audacity I found that the line
>input produces a full undistorted signal at about 42mV RMS (~115 mV
>P-P), and clipping at much above that.  These values are confirmed
>with Fluke 87 and a Tek scope.  The clipping shows up in Audacity.
>The web indicates that consumer audio line level signal should be 894
>mV P-P, and my stereo receiver seems to agree that this value is the
>correct order of magnitude.
>
>My MB manual says nothing about what they think line-level is, and
>Google did not enlighten me about this type of problem with the MB.  I
>see no hardware switches on the MB nor anything in the BIOS.

I have no ideas, but I have an ASUS M2NPV-VM motherboard and I use its
onboard sound only. It sort of works.

Looking at the manual it offers the following support contact options:

General Support 502-995-0883 (Fremont California), or support.asus.com