• 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: Generating variable frequency tones
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Generating variable frequency tones


  • Subject: Re: Generating variable frequency tones
  • From: Remco Poelstra <email@hidden>
  • Date: Fri, 10 Sep 2010 15:09:07 +0200

Op 9 sep 2010, om 21:58 heeft Remco Poelstra het volgende geschreven:
> I'm looking for some way to generate a tone that resembles the sound of an instrument. I need precise control of the base frequency (pitch). I'm wondering what would be the best way to generate it on an iPhone.
> Store a file with a know frequency and resample it to the desired frequency? Synthesize a tone by calculating a bunch of sines? Doing some FFT trick on a file?
> If someone can give some insight into what would best fit the H/W available it would be grateful.

Hi,

Thanks for all replies. Given the answers, it had less to do with Cocoa than I thought, or can be solved perfectly in a non-Cocoa specific way on the iPhone. Seems that Core Audio will be the way to go.

Regards,

Remco Poelstra

_______________________________________________

Cocoa-dev mailing list (email@hidden)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

References: 
 >Generating variable frequency tones (From: Remco Poelstra <email@hidden>)

  • Prev by Date: Re: Generating variable frequency tones
  • Next by Date: Re: NSTableView/NSOutlineView variable row height code has detected re-entry.
  • Previous by thread: Re: Generating variable frequency tones
  • Next by thread: move drag and drop operations between different data sources
  • Index(es):
    • Date
    • Thread