Some Test Tracks to check for Absolute Phase!

[Ghoostknight]

https://deezer.page.link/aBX8z8thiUBeak6g8 one example of "impulsive" bass hits, and im only talking about the few "special" bass hits, not the constant ones

for me with songs like this (but honestly also good rock and pop songs) it becomes pretty apparent, that is reason enough for me to watch out for correct absolute polarity

i also feel like having the phase inverted messes more songs up than having it correct but YMMV

 

[Ghoostknight]

Also just something i thought about.... you guys talked about head position and tweeter to woofer relationship

what is the difference between inverted phase and correct phase? exactly, only the first half sinuscycle .... it doesnt matter where you are in the room to perceive the first half (correct phase) transient imo you will perceive it anywhere, then it becomes a question of roommodes and what not where is which phase in the end... just some food for thought

 

[bigshot]

To me the difference is phase cancellation.

 

[old tech]

Just on this phase issue. When I switch my sub phase switch I hear no difference. Is this normal?

 

[gregorio]

Just on this phase issue. When I switch my sub phase switch I hear no difference. Is this normal?

Yes. Hearing a difference (in volume) is dependent on certain interactions, the frequency of the signal, the room acoustics and the placement of your sub relative to your mains, which in a bass managed system can cause interference, phase summation or cancellation. In such cases employing the phase switch can reduce or increase the volume respectively.

G

 

[Ghoostknight]

Just on this phase issue. When I switch my sub phase switch I hear no difference. Is this normal?

maybe your subwoofer stand at a place where 0 degree and 180 degree are pretty much the same amount out of phase from your listening position, i would try to move the subwoofer some inches and try again if you hear a difference with the polarity switch

 

[geoffkait]

There is no standard for polarity, the XLO test CD and similar CDs test for system polarity, They say tracks on the same CD can have different polarity, some inverted some correct, and they also say mics used in a recording can sometimes have different polarity, some inverted, some not. I suspect some engineers are more conscious of absolute polarity, but I don’t believe anyone really knows the percentage of CDs that are OOP. my guess is 20% but not as high as 50%.