Subject: Re: [linux-audio-user] Getting audio noise through midi cable
From: Phil Carter (philip_c_carter_AT_yahoo.com)
Date: Mon Aug 02 2004 - 22:02:36 EEST
I looked at my midi cable and it does have pin 2 on midi in grounded.
I'll fix it when I get a chance and see if that helps.
Phil Carter
--- Clemens Ladisch <clemens_AT_ladisch.de> wrote:
> Phil Carter wrote:
> > I have my keyboard midi ports connected to my computer through
> the
> > game port on my motherboard sound card. It works fine, except I'm
> > hearing some noise through the audio output on my keyboard when
> the
> > midi cable is plugged into my computer.
>
> Apparently, some MIDI IN connector has pin 2 connected to the
> ground,
> which is a Bad Thing(TM) to do; see
> <http://www.midi.org/about-midi/electrical.shtml>.
>
> > Is there anything I can do to correct this? Is it because I have
> a
> > cheap sound card? I've thought about getting a somewhat better
> > soundcard, possibly an SB Live!, or a USB midi interface instead
> > of my gameport midi interface.
>
> The ground loop might be caused by your gameport MIDI interface, so
> there is the possibility that you have a chance that a USB MIDI
> interface might fix the problem, if you're lucky. However, many
> other
> devices get this wrong, too.
>
> You could try to 'modify' your interface so that pin 2 (the middle
> pin) of the MIDI IN connector is permanently disconnected ...
>
>
> Regards,
> Clemens
__________________________________
Do you Yahoo!?
New and Improved Yahoo! Mail - Send 10MB messages!
http://promotions.yahoo.com/new_mail
This archive was generated by hypermail 2b28 : Mon Aug 02 2004 - 22:06:54 EEST