Not the case.
On 8/30/14, 11:15 AM, [naturerecordists] wrote:
> Sticking my nose into this conversation, two noise sources I can immediat=
ely
> think of are mains hum and/or digital noise pickup from an unscreened
> plastic plug which would be worse on an open ended cable.
>
> If the socket was carrying PIP, it is unlikely that there would be leakag=
e
> from signal to screen, but with non gold plated plugs there could be a sm=
all
> layer of oxide between the plug and socket which could generate voltage
> noise from any current passing through.
>
> You can also get noise when the plug is moved across varying electrochemi=
cal
> potentials between oxides and metal which can cause crackle. With gold
> plated plugs, a little gold transfers to the socket connection and improv=
es
> the ohmic contact.
>
> With XLR plugs, there is a "blade" structure which breaks through oxide
> layers, giving a more reliable contact than a sliding 3.5mm connection..=
>
> David Brinicombe
>
>
>
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