• 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: linear PCM
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: linear PCM


  • Subject: Re: linear PCM
  • From: David Duncan <email@hidden>
  • Date: Wed, 16 Jan 2008 08:26:34 -0800

On Jan 16, 2008, at 1:27 AM, tahome izwah wrote:

You have to take dt into account when calculating the samples from
your trig function. In the PCM domain your samples are always spaced
at a uniform and time normalized step size of unity. IOW, sin() has no
way of knowing your dt if you don't include it when calculating the
argument.

His point is that he's taking dt into account with his calculation of t. That is, at 1 second through the sound, t==1, but to get there in 44100 steps, it goes through 0/44100, 1/44100, etc in 44100 steps.
--
Reality is what, when you stop believing in it, doesn't go away.
Failure is not an option. It is a privilege reserved for those who try.


David Duncan

_______________________________________________
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: linear PCM
      • From: "tahome izwah" <email@hidden>
References: 
 >Re: linear PCM (From: Roland Silver <email@hidden>)
 >Re: linear PCM (From: "tahome izwah" <email@hidden>)

  • Prev by Date: Re: Recommended way to setup a timer in a CoreAudion application?
  • Next by Date: Re: linear PCM
  • Previous by thread: Re: linear PCM
  • Next by thread: Re: linear PCM
  • Index(es):
    • Date
    • Thread