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Re: looking for a list of audio units for iPhone, Is there a way to implement effects like distortion with out using audio units?
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Re: looking for a list of audio units for iPhone, Is there a way to implement effects like distortion with out using audio units?


  • Subject: Re: looking for a list of audio units for iPhone, Is there a way to implement effects like distortion with out using audio units?
  • From: Brian Willoughby <email@hidden>
  • Date: Sun, 5 Oct 2008 15:41:21 -0700

Andy,

AudioUnits are merely a plugin format, designed to allow external audio processing code to be added to a program that has already been compiled. If you are writing your own (iPhone or other) application, then you are free to process the samples any way you wish, whether or not you use AudioUnits or any other external code. I have not written any iPhone applications yet, but I believe you have access to audio input and audio output. Your goals can be reached using AUGraph or other parts of CoreAudio besides AudioUnits.

Brian Willoughby
Sound Consulting


On Oct 5, 2008, at 13:33, Andrew E. Davidson wrote:
Sorry if this question has been asked before. Does anyone know of an official list of Audio Units available on the iPhone?


The CoreAudioOverview.pdf does a nice job listing the audio units available on Mac OS, but does not list what’s available on iPhone? I looked through AUComponent.h . I think I might be missing something because there is an application in the apple store called “PocketGuitar” that has distortion and delay effects. Yet kAudioUnitSubType_Distortion is conditionally commented out of the header file?

#if !TARGET_OS_IPHONE

            kAuditoUnitSubType_Delay = ‘dely’,

            kAudioUnitSubType_Distortion = ‘dist’,

#else

CoreAudioOverview.pdf says that delay and distortion are only available on Mac OS and that you can not write audio units for the iphone. Is there some way to implement effects like distortion by manipulating the sample values while they are in the audio queue or using some other technique?


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 >looking for a list of audio units for iPhone, Is there a way to implement effects like distortion with out using audio units? (From: "Andrew E. Davidson" <email@hidden>)

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