Unbalanced Polarity Flip

Recording Techniques, People Skills, Gear, Recording Spaces, Computers, and DIY

Moderators: drumsound, tomb

Post Reply
User avatar
Drone
re-cappin' neve
Posts: 657
Joined: Fri Dec 18, 2009 4:01 pm
Location: Uranus

Unbalanced Polarity Flip

Post by Drone » Wed Aug 08, 2018 2:45 pm

I have a little mixer without a polarity / phase invert switch, I'd like to make something that will flip the polarity of an unbalanced signal (coming in on a 1/4") without running the risk of shorting something, can I do it with a transformer or a couple of caps or something? :mrgreen:

Thanks in advance.
The previous statement is from a guy who records his own, and other projects for fun. No money is made.

User avatar
vvv
zen recordist
Posts: 8336
Joined: Tue May 13, 2003 8:08 am
Location: Chi
Contact:

Re: Unbalanced Polarity Flip

Post by vvv » Wed Aug 08, 2018 3:56 pm

Can't you just do that by rewiring a cable or extension jack?
bandcamp; vlayman;
THD; blog.
I mix with olive juice.

MoreSpaceEcho
zen recordist
Posts: 6245
Joined: Wed May 07, 2003 11:15 am

Re: Unbalanced Polarity Flip

Post by MoreSpaceEcho » Wed Aug 08, 2018 5:26 pm

if it were balanced, yes, but if it's unbalanced it's just the signal and ground wires, innit?

User avatar
I'm Painting Again
zen recordist
Posts: 6906
Joined: Wed May 07, 2003 2:15 am
Location: New York, New York
Contact:

Re: Unbalanced Polarity Flip

Post by I'm Painting Again » Wed Aug 08, 2018 7:46 pm

ya seems like you don't have multiple phases to flip - just the one phase plus ground coming in on the unbalanced line

what are you hoping to achieve ?

User avatar
emrr
re-cappin' neve
Posts: 780
Joined: Mon Aug 07, 2006 10:21 am
Location: NC
Contact:

Re: Unbalanced Polarity Flip

Post by emrr » Thu Aug 09, 2018 5:56 am

Yes, a transformer will do this.
Doug Williams
ElectroMagnetic Radiation Recorders
Tape Op issue 73

User avatar
I'm Painting Again
zen recordist
Posts: 6906
Joined: Wed May 07, 2003 2:15 am
Location: New York, New York
Contact:

Re: Unbalanced Polarity Flip

Post by I'm Painting Again » Thu Aug 09, 2018 6:59 am

I'm assuming drone wants a way to flip polarity to A-B for what sounds better with multi mic recording or since it's coming in on an unbalanced line maybe an unbalanced analog mix

???

seems like you could buy a different mixer for the less than cost of all the transformers and components needed to build a switch and distribute the signal in order to do so - i dunno

User avatar
vvv
zen recordist
Posts: 8336
Joined: Tue May 13, 2003 8:08 am
Location: Chi
Contact:

Re: Unbalanced Polarity Flip

Post by vvv » Thu Aug 09, 2018 5:34 pm

You could do it with software ...


... by what I mean, invert the track after it's recorded.
bandcamp; vlayman;
THD; blog.
I mix with olive juice.

Post Reply

Who is online

Users browsing this forum: joninc and 3 guests