I was working on the below circuit, to create a balanced audio output.
But have been told this creates a differential audio output, not a 'true' balanced audio output.
"A true balanced output would couple interference on one leg to the other, improving common mode rejection at the receiver. Short either leg to ground. If the amplitude on the other leg doubles, it's balanced."
So my question is how to create this 'true' balanced audio?!
Everything I see online from hours of searching all show some variation of the above circuit, with opamps to create a signal and an inverse signal.
Can anyone point me to a circuit that would create a 'true' balanced audio output?