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Old 21st February 2016, 06:14 PM   #1
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Default Ear bud connector

Hey everyone...
I just saw a picture of a set of ear buds and it reminded me of a question that's been in my head for a while now; why do some modern ear buds/phones have plugs with four connections (TRRS?) instead of three as in the past? Just wondering.

Mike
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Old 21st February 2016, 08:56 PM   #2
agdr is offline agdr  United States
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I believe that 4th connection, closest to the plug body, is used for video/mic. Here is a picture:

koje slusalice

So from the tip: left channel, right channel, ground, then video or microphone. For earbuds they probably just ignore that 4th position.
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Old 21st February 2016, 10:06 PM   #3
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Quote:
Originally Posted by agdr View Post
I believe that 4th connection, closest to the plug body, is used for video/mic. Here is a picture:

koje slusalice

So from the tip: left channel, right channel, ground, then video or microphone. For earbuds they probably just ignore that 4th position.
Ah, yeah I forgot about mic options. Thanks

Mike
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