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Cocoa Waveform Audio Player Control

A cocoa audio player component which displays the waveform of the audio file.

How to use it ?

OSX

Add a view in IB and set the class to WaveFormViewOSX

iOS

Add a view in IB and set the class to WaveFormViewIOS

Then you can use:

  • (void) openAudioURL:(NSURL *)url;

Note on iOS: on iOS you should provide a direct URL to the audio data, you cannot use URL obtained from MPMediaItemPropertyAssetURL. You should extract the content from AVAsset. More on this you can read http://www.subfurther.com/blog/2010/12/13/from-ipod-library-to-pcm-samples-in-far-fewer-steps-than-were-previously-necessary/ In the sample application you should add an mp3 file, named sample.mp3 to the iOS app, because I removed it to avoid legal concerns.

How to hack it ?

If you would like to change visual appearance you should take a look at WaveFormView???:drawRect and hack as you wish.

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