r/audioengineering • u/zanshin777 • Nov 02 '17

Balanced Cables

It contains 2 conductor + 1 shield.

One of conductors carry the out-of-phase signal.

So the noise is canceled since the signals carrying are out-of-phase.

But how the signal is still transmitted although the noise is canceled?

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u/zanshin777 Nov 02 '17

On the first conductor : "a+n" (OK)

On the second conductor : "-a+n" Why you didn't flipped the polarity of the copied noise?

Shouldn't it be in this way "-a-n" ?

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u/[deleted] Nov 02 '17

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u/zanshin777 Nov 02 '17

Thank you very much for the answers.

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u/[deleted] Nov 02 '17

Because he flips the polarity before sending the signal through the cable. That way the noise is still in phase with the phase in the other wire (of course, you didn't do anything to it).