Re: setting frequency using CoreAudio (like iTunes - Equalizer )

FROM : Jens Alfke
DATE : Thu May 08 17:03:24 2008

On 7 May '08, at 11:44 PM, Rajeswar Rao wrote:

> I am trying to implement iTunes-Equalizer kind of functionality to 
> my mp3 playback.
> Can any body direct me how to do this.
> I started looking into CoreAudio frameworks.


You'll need to use CoreAudio, specifically an AUGraph of AudioUnits.

Be warned: CoreAudio is very hard to learn. Probably the most 
difficult OS X API I've used. At least there are a number of example 
applications — look in /Developer/Examples/CoreAudio/. There are a few 
that use AudioUnits to play files, which is where you'd want to start 
from.

Also, CoreAudio is off-topic for this list. Please use coreaudio-api 
instead.

—Jens