From owner-freebsd-questions@freebsd.org  Sun Sep 11 17:38:35 2016
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Date: Sun, 11 Sep 2016 19:38:30 +0200
From: Polytropon <freebsd@edvax.de>
To: Andrea Venturoli <ml@netfence.it>
Cc: Manish Jain <bourne.identity@hotmail.com>, freebsd-questions
 <freebsd-questions@freebsd.org>
Subject: Re: Will installing a separate sound card work?
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On Sun, 11 Sep 2016 19:08:03 +0200, Andrea Venturoli wrote:
> On 09/10/16 20:51, Manish Jain wrote:
> 
> > Nice to hear from you. I knew I could always count on your reply : - )
> >
> > The onboard sound would have been great had it not been for that hiss
> > that comes along. The hiss is loud enough to be a real game-spoiler. I
> > plugged in my headphones in place of the speakers, and the hiss is
> > present on the headphones too. So it had to be a problem with the
> > onboard chip or the driver. I eliminated the driver by installing
> > Windows XP, and the hiss is present in WMP playback too. So the only
> > option now is to install a separate sound card. I don't mind that, as
> > long as the card can be made to work with FreeBSD 10.x/11.
> 
> Just a shot in the dark: did you silence everything through the mixer?
> E.g. is line-in at 0? CD?
> Try and see if that hiss comes from the channel you are really trying to 
> hear.
> 
> I know, this is not likely, but costs nothing, so it's worth trying.

This should be checked with the "mixer" command - and yes, it is
actually possible that an "open input" causes the kind of sound
initially described.


-- 
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...