What is Phase in Audio - Concepts of Phase and Polarity

[@AndrewOrobator_Dev]

Pretty solid explanation! I think one thing that would make this video even better would be audio examples of phase issues just so I can recognize it by ear now that I know what’s going on conceptually

[@DaveDivines]

Absolutely, on the hunt for just such a video

[@tommasopellegrini6725]

So well explained. Thank you

[@zachvalenti]

Insanely valuable content.

[@problemsfan4132]

i really needed this, thank you!

[@rashid5271]

Really well explained ! i am gonna subscribe

[@boneswireson4865]

ty, going little by little, it is still hard for a begginer like me

[@lianmatic2]

amazing video, thanks

[@loettu]

Hi, thank you for the great videos!:) But i still have a problem, how do you handle a very large (or multiple) sound sources with two mics? For example when you put two mics in a grand piano for the low and the high registers. In my understanding you would have to shift for the high notes in one direction and for the low notes in the other… how can you handle this?

[@WizeChoice]

Great vid. Thank you much

[@SLVP6]

thank you clearly explain

[@vidicsferenc182]

As far as i understand -> out of phase = out of sync. This is a timing issue you need to flip the phase or edit, move the track or even both ! Soundradix's Auto Align VST takes care of this problem.

[@DaveDivines]

Thank you!

[@Rene_Christensen]

A polarity flip is indeed the same as a 180 degree phase change of the phasor phase, or initial phase, at all frequencies.

[@Yoda8945]

Phase has a time component. Polarity does not.

[@loettu]

As soon as your sound wave is no more a harmonic sine wave, you will not be able to get a polarity switch by a phase shift of 180 deg.

[@Rene_Christensen]

@@Yoda8945 Yes, flipping the polarity will not introduce any delay (dead time). It will, however, change the phase delay and group delay, which causes a lot of confussion in the audio community. I have written articles about it, one is availble on AudioXpress. So time aspects can be derived from the phase, but most people try to think of phase being derived from time, which is not a good path to go down.

[@Rene_Christensen]

@@loettu Oh yes. All Fourier component will have their sign changed, which will be described as 180 degrees, for all frequencies. You might be thinking of time delay causing the 180 degrees at some distinct frequencies, but a time delay is a linear phase shift, whereas a polarity flip indeed is 180 degrees change across the entire frequency range.

[@bartekglinski2665]

great!

[@fabiorodrigues8763]

❤obrigado!

[@dog69420]

thx

[@Motuochez]

This didn't really help me understand phase tbh. So it's a position in the wave measured in degrees? Then you say "usually you don't have to worry about what part of the cycle a sound wave is in" and then u talk about how in recording the sound waves can hit the mics in different times. So is the wave different when it hits the mics? But it still sounds the same? What does changing the phase in DAW do, like you're just moving the audio track's waves around? Ugh I don't understand