Re: Buzz Using 3.5 mm Patch Cord


Norma A. Boge
 

I've had to finesse cables in this way. Works well for a quick fix but I'd buy cables like howard spoke of if I needed a more permanant connection.

-----Original Message-----
From: main@TechTalk.groups.io <main@TechTalk.groups.io> On Behalf Of Pamela Dominguez
Sent: Sunday, November 10, 2019 3:45 PM
To: main@TechTalk.groups.io
Subject: Re: [TechTalk] Buzz Using 3.5 mm Patch Cord

That's very strange that they connect in stereo when pushed part way in. I remember having a stereo plug in a mono jack and pushing that part way in in order for it to work, but it of course worked in mono. Pam.

-----Original Message-----
From: Rich DeSteno
Sent: Sunday, November 10, 2019 12:27 PM
To: main@TechTalk.groups.io
Subject: Re: [TechTalk] Buzz Using 3.5 mm Patch Cord

Geoff, thanks for the information. After trying about five different
3.5 mm patch cords, I found that maybe two of them can indeed connect in stereo when pushed in only partially, the rest of them can connect in mono, but then degenerate if pushed in farther. I think I can manage with the ones that work when partially pushed in, assuming they stay in. I never thought that something as simple as a 3.5 mm patch cord would become so complicated.


On 11/10/2019 4:29 AM, Geoff Eden wrote:
Good morning Rich, I presume that the Apple earphones are the type
with a tiny microphone on the cable. This means that the plug has 4
contact points instead of the usual 3 contacts for normal stereo
earphones or plugs. You can check this by running a finger nail down
the shaft of the Apple earphones and you will discover that the upper
sleeve is connection 1, the next ring down toward the tip is
connection to, the ring nearest the tip is connection 3, and the tip
is connection four.conversely, normal stereo earphones have the upper
shaft disconnection 1, with the single ring before the tip is connection two, and the tip is connection 3.

Obviously in the Apple earphones, one ring and the sleeve ground make
a connection for the commonly used Mono microphone. chances are, for
whatever reason, your TV box has the 4 connector type female receptacle.
Often you can get lucky but putting the plug only part way inso that
the receptacle's tangsmake with theordinary Sony stereo plugon the end
of your patch cable.

If you experiment with an ordinary pair of stereo headphones, you
might be able to establish a useful depth to which you can insert the
plug to make contact.

There are adapters out there that go from a 4 point male plugto a
normal stereo femaleand a mono type plug for a microphone, commonly
used by people with new laptops that have the microphone and stereo
earphone socket combined as described above.

Hope this is helpful

Geoff


-----Original Message----- From: Rich DeSteno
Sent: Sunday, November 10, 2019 12:22 AM
To: main@TechTalk.groups.io
Subject: [TechTalk] Buzz Using 3.5 mm Patch Cord

I have used 3.5 mm patch cords for many years to record from radios
and other electronic devices. Today I wanted to set up to record from
my TV cable box audio output jack, which is a 3.5 mm jack. I tried a
couple of my cords, but they all had a buzz or hum in the left
channel. I do not get that noise when recording off of radios or other
devices. As a test, I plugged in the Apple Earbuds that came with my
iPhone, and was surprised to hear clear stereo with no hum or buzz.
Is there a special type of patch cord that I need for these cable
boxes in order to get the clear stereo?

--
Rich De Steno

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