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Re: Newbie questions
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Re: Newbie questions


  • Subject: Re: Newbie questions
  • From: Brian Willoughby <email@hidden>
  • Date: Sun, 5 Apr 2009 10:56:34 -0700

All I'm saying is that "music" is not a sine wave (although I do have one release that is nothing but sine waves). Even though music can theoretically be transformed into a series of sine waves that repeat to infinity, inverting the polarity of a piece of music is not going to shift each frequency by a certain number of degrees. I prefer a separation from the physics and math term, which I understand, and the audio engineering concept, which I believe is misnamed. I think you're agreeing with me, when you say that "phase is for sinusoids only" - and since the OP was talking about vocals, it's clearly a case of other waveforms.

BW


On Apr 5, 2009, at 07:22, tahome izwah wrote: Sorry, I think you're wrong here. Since only a pure sinusoid has the concept of "phase" I believe this term is actually quite correct. PI radian / 180 degree phase shift = inverse polarity. For other waveforms you usually talk about "period" or "cycle", but phase is for sinusoids only. Not sure what audio engineers think about this (they sometimes do use funny terminology) but this is how the physics and math guys see it.

--th

2009/4/4 Brian Willoughby <email@hidden>:
It's a bit misleading when folks refer to this sort of thing as 'phase' - a
more appropriate term would be 'polarity.' Only a pure sine wave has a
180-degree phase shift when it's polarity is inverted, but any changing
waveform will obviously not have its features shifted in phase at all,
because they remain at the same precise time.

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  • Follow-Ups:
    • Re: Newbie questions
      • From: Hamish Allan <email@hidden>
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References: 
 >Newbie questions (From: James Cicenia <email@hidden>)
 >Re: Newbie questions (From: Brian Willoughby <email@hidden>)
 >Re: Newbie questions (From: tahome izwah <email@hidden>)

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