I see that the only effect unit on iOS is the ipod EQ. Is there any other way to change the high, mid and low frequencies of an audio unit on iOS?
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I see that the only effect unit on iOS is the ipod EQ. Is there any other way to change the high, mid and low frequencies of an audio unit on iOS?
Unfortunately, the iPhone doesn’t really allow custom AudioUnits (ie. an AudioUnit’s ID cannot be registered for use by an AUGraph). What you can do is register a render callback and process the raw PCM data yourself. Sites like musicdsp.org have sample DSP code that you can utilize to implement any effect you can imagine.
Also, here is a similar StackOverflow question for reference: How to make a simple EQ AudioUnit