• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: Newbie questions
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Newbie questions


  • Subject: Re: Newbie questions
  • From: tahome izwah <email@hidden>
  • Date: Sun, 5 Apr 2009 16:22:24 +0200

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.
 _______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

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

  • Prev by Date: Xcode will not run auval as a custom executable
  • Next by Date: Re: Newbie questions
  • Previous by thread: Re: Newbie questions
  • Next by thread: Re: Newbie questions
  • Index(es):
    • Date
    • Thread