Absolute polarity test

Discussion in 'Audio Science' started by MLegend, Oct 14, 2020.

  1. Kouon

    Kouon Rando

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    Fair point. That was the conclusion I’ve been reading here and elsewhere too (phase getting mangled a lot during recording, or one instrument/track being in opposite phase to the other). I do still want to maintain absolute phase though for the few albums that do maintain it properly, however. Those that don’t will probably just sound just that tiny bit different from before.

    I’m probably coming more at it from a more me-being-OCD-about-stuff standpoint though.

    Maybe what I’m trying to say is, give it a shot especially if you know your amp is polarity inverting. Worst case you can just toggle it back off. The CTH is just as good an amp despite the phase flip though, but I just never thought it would be this noticeable.
     
  2. ergopower

    ergopower Friend

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    I didn't phrase my observation very well. When I said reflection, what I meant was that the Raw file sounded like a dude speaking in a 9 - 10' wide studio or room, the reflection or echo of his voice sounds like the walls are about half that distance from his head. The Inverse file, there was some echo or reflection, he's not outdoors nor in an anechoic chamber, but I couldn't get a fix on how big the room was. I didn't notice fan or other noise.
     
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  3. MLegend

    MLegend Friend

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    Since inverting the signal in post-production doesn't solve this issue in my setup for live scenarios, which is what I use it for, I needed to fix this on the hardware side. I thought it was the cable, so I ordered a new one and the new cable sent a reversed polarity signal from the output on my DBX 286s to my interface as well. This made me think the DBX was the issue.

    I decided to buy the Galaxy Audio Cricket polarity tester to check the cables and lo and behold the cables were wired correctly. I desoldered the cable, switched the wires and this fixed the issue. The DBX was the issue.

    So if you're curious about polarity in your setup, the Galaxy Audio Cricket is a pretty neat and useful tool to check and test your equipment.
     
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  4. Tom R

    Tom R Rando

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    I use the polarity switch on my DAC a Iot. I find that it is most noticeable with instruments that have very asymmetrical timbres - like trumpets. Very obvious which way is correct. I wish my preamp had a phase invert switch so I could check on my analog sources.
     
  5. yotacowboy

    yotacowboy McRibs Kind of Guy

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    Does anyone know if there's any push for Roon to allow for polarity settings to be captured in a track's metadata?
     

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