"One of the significant advantages of balanced audio cables is their ability to reject common-mode noise. Any noise picked up along the cable affects both the hot and cold signals, but when the signals are combined at the receiving end, the noise cancels out." "The Balanced option will offer more power and control of the headphones in comparison to the single-ended output. A true Balanced amplifier will be balanced from input all the way through to the output. Op-amp splitters are often used to convert the input and output from single ended to balanced." Balanced audio signals matter most between the amplifier and the DAC or on long signal paths between a source and mixer/preamp.
Thanks, Paul ! I had mistakenly believed one leg carried only the signal from zero to plus peak & back , the other zero to minus peak & back , but now I understand each carries the full signal , but fully out of phase with one another . That really makes sense now ! I have balanced cables between preamp and power amp and all my gear is powered by Equitech balanced AC power .
a balance microphone voice coil has a centre tapped microphone voice coil wire and the microphone voice coil positive and negative signal wire . this microphone wire configuration is a rather not a usual for a dynamic microphone , the cable is a shielded earthed and a two wire cable and the input to the amplifier is a balanced input transformer connection .
Easy Peasy, + terminal = (in phase) true signal, - terminal = inverted (in phase) version of true signal, 3rd terminal = shield, the signal is interpreted as the difference in voltage between the + and - terminals (QED). Balanced signals are used everywhere including twisted pair Ethernet, HDMI and Displayport. The shield is just a preventative measure against unwanted noise.
Using a mic as an example. All mic elements are balanced. All have two connectors and when a signal is generated one side is plus and the other minus relative to each other. Then it is just a matter of how it is connected. You can take the two wires and wrap them together and surround them both with a braided wire shield as a third conductor that is connected to ground to keep noise out. Or you could take one of the two wires and run it inside a shield made using the other wire and connect that to ground.
Is as simple as say that the ground connection is only used for shielding propuses in a microphone, as there is no active "ground" connection to the capsule itself...
Are you saying microphones have a center tap? Positive wave operates between the capsule at rest to full excursion, negative from rest to inversion? If you move the scope ground? How do you get 2 mirrored waves instead of one with 0 being the center?
As all coils the reference just change to where you connect it... You can, for example, join - and ground to make it one side referenced to 0v (gnd)... In balanced circuit this reference is given in the feedback of the active balanced diferential input circuit...
Yes... In coils the reference is settled with the conections... Is a transformer for example, lets take a 3 output transformer with a single 10v coil with a central tap, you can use as a side to side 5v if you reference to center tap or as a 5 and 10v output if you take the reference from one end...
Challenge accepted, let me try this without a whiteboard: a microphone is actually a good example, let's take a dynamic microphone with a coil - that coil has to ends - these are your two signal wires, not connected with the "ground ", but going straight to a differential amplifier. The ground in this case is good for shielding the mic and the wires from external interference. Not a good example? - take a small battery instead - it has a clear plus and a minus. Connect one of these two wires to the ground, and you have single-ended audio.
"One of the significant advantages of balanced audio cables is their ability to reject common-mode noise. Any noise picked up along the cable affects both the hot and cold signals, but when the signals are combined at the receiving end, the noise cancels out."
"The Balanced option will offer more power and control of the headphones in comparison to the single-ended output. A true Balanced amplifier will be balanced from input all the way through to the output. Op-amp splitters are often used to convert the input and output from single ended to balanced."
Balanced audio signals matter most between the amplifier and the DAC or on long signal paths between a source and mixer/preamp.
Dude you need a white board, although watching you struggle without one is damn entertaining.
Do you know how many times I made this comment in the past on this video channel? At least 10. It’s received by deaf ears.
Of the 30 times Paul has tried to explain this, this one might be the most confusing.
White board time.
It's how he gets us coming back for stuff we've heard or read and kinda forgot a dozen times.
@@martinfox2244 Yes, definitely 🙂
Thanks, Paul ! I had mistakenly believed one leg carried only the signal from zero to plus peak & back , the other zero to minus peak & back , but now I understand each carries the full signal , but fully out of phase with one another . That really makes sense now ! I have balanced cables between preamp and power amp and all my gear is powered by Equitech balanced AC power .
It amazes me, as many people write from different countries have such impeccable English.
I upgraded my amps, and the new ones are balanced. There had been a wee bit of noise making it into my system before, and now it's completely silent.
a balance microphone voice coil has a centre tapped microphone voice coil wire and the microphone voice coil positive and negative signal wire . this microphone wire configuration is a rather not a usual for a dynamic microphone , the cable is a shielded earthed and a two wire cable and the input to the amplifier is a balanced input transformer connection .
4:30 - So, I assume that the ground only goes to the CASE of the microphone and not to the capsule? Doesn't the capsule need a ground-reference?
Easy Peasy, + terminal = (in phase) true signal, - terminal = inverted (in phase) version of true signal, 3rd terminal = shield, the signal is interpreted as the difference in voltage between the + and - terminals (QED). Balanced signals are used everywhere including twisted pair Ethernet, HDMI and Displayport. The shield is just a preventative measure against unwanted noise.
Using a mic as an example. All mic elements are balanced. All have two connectors and when a signal is generated one side is plus and the other minus relative to each other. Then it is just a matter of how it is connected. You can take the two wires and wrap them together and surround them both with a braided wire shield as a third conductor that is connected to ground to keep noise out. Or you could take one of the two wires and run it inside a shield made using the other wire and connect that to ground.
Is as simple as say that the ground connection is only used for shielding propuses in a microphone, as there is no active "ground" connection to the capsule itself...
Are you saying microphones have a center tap? Positive wave operates between the capsule at rest to full excursion, negative from rest to inversion? If you move the scope ground? How do you get 2 mirrored waves instead of one with 0 being the center?
As all coils the reference just change to where you connect it...
You can, for example, join - and ground to make it one side referenced to 0v (gnd)...
In balanced circuit this reference is given in the feedback of the active balanced diferential input circuit...
Seems to me the signal is ordinarily balanced and only becomes single ended when one side is grounded.
🧐
Yes... In coils the reference is settled with the conections...
Is a transformer for example, lets take a 3 output transformer with a single 10v coil with a central tap, you can use as a side to side 5v if you reference to center tap or as a 5 and 10v output if you take the reference from one end...
Maybe a source of some of the confusion is that many folks do not know the current going to speakers is AC, and not DC.
Challenge accepted, let me try this without a whiteboard: a microphone is actually a good example, let's take a dynamic microphone with a coil - that coil has to ends - these are your two signal wires, not connected with the "ground ", but going straight to a differential amplifier. The ground in this case is good for shielding the mic and the wires from external interference. Not a good example? - take a small battery instead - it has a clear plus and a minus.
Connect one of these two wires to the ground, and you have single-ended audio.
Perhaps before embarking on a technical topic, grab a white board and prepare a couple illustrations in advance rather than using your fingers.
Painful to watch.
WHITE BOARD!!!!!!!!!!!
Unless you're running lengths of 20' or more, "balanced" offers *nothing* over single-ended; period!
Sings: “It ain’t necessarily so...” 🎤
According to my in-studio tests, balanced cabling will always offer substantially preferential results, at any length.
BS, you spend too much time on the internet