• 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: AUGraphicEQ parameters
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: AUGraphicEQ parameters


  • Subject: Re: AUGraphicEQ parameters
  • From: Chris Rogers <email@hidden>
  • Date: Wed, 1 Jun 2005 17:25:04 -0700

Hi all, I'm new on the list.

I need to equalize music, so I've thought of AUGraphicEQ (aufx greq appl) unit, but i've searched for hours and didn't found any information about how to manipulate its parameters. In the "Core Audio Reference" document, where it's supposed to be all the parameters for all audio units, there is no info at all :(


If you have the 'auval' command-line tool (this will always be installed on Tiger systems) then you can use it to find out:


auval -v aufx greq appl

Among lots of other information, it will give you a list of the published parameters for the graphic EQ, the parameter ID numbers and so on.
This should work for any AudioUnit by the way, not just AUGraphicEQ.



Perhaps there is no possibility of handling the parameters in the code? If that's the case, as I need to equalize only three bands (as in the DJ mixing tables), putting serially three parametriq eq AU's would be CPU-killer? What I could do instead?

Regards, and sorry for my bad english :)

You *will* be able to control the parameters by using the paramIDs as displayed by 'auval'.
Three AUParametricEQs in series will also work and should be more efficient than AUGraphicEQ, though either choice should be pretty light
on the CPU.


Chris Rogers
Core Audio
Apple Computer





_______________________________________________
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


References: 
 >AUGraphicEQ parameters (From: Guillermo Lapresta <email@hidden>)

  • Prev by Date: RE: automating device aggregation
  • Next by Date: Re: multiple AUs in a bundle
  • Previous by thread: AUGraphicEQ parameters
  • Next by thread: Coreaudio Deadlock
  • Index(es):
    • Date
    • Thread