How to add an EQ Filter in Coreaudio/AVAudioPlayer??
How to add an EQ Filter in Coreaudio/AVAudioPlayer??
- Subject: How to add an EQ Filter in Coreaudio/AVAudioPlayer??
- From: cocell <email@hidden>
- Date: Tue, 12 Oct 2010 07:59:30 -0700 (PDT)
I'm trying to import an audio file than change it's frequency while playing. I've seen many programs with this but I can't figure out how to grab the samples out of the buffer and rewrite it with a different frequency, like boost 12dBs @ 100Hz with an UISlider for the iPhone. I understand how to import the audio and add the slider, but don't know where in my code to add the filter equation...
How can I add this equation,
![$\displaystyle y(n) = x(n) + x(n - 1) \protect$]()
into my implementation. Plz Help.
It's been 4-5 months of studying DSP but now I Have to fiqure out how to get the samples into the equation
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