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<h4 align="left">Audio Converter File Converter Test</h4>

<p>iPhoneACFileConvertTest demonstrates the use of the Audio Converter APIs to

convert from a PCM audio format in an .aif file to a compressed format in a .caf file

and will support AAC encode on appropriate hardware such as the iPhone 3GS. 

</p>

<p>All the relevant code is in the file AudioConverterFileConvert.cpp.</p>

<p>Touching the "Convert" button calls the function DoConvertFile() producing an output.caf

file using the encoding and sample rate chosen in the UI.</p>

<p>The output.caf file is then played back after conversion using AVAudioPlayer to confirm success and

Audio format information for both the sournce and output file is displayed.</p>

<p>Interruption handling during audio processing (conversion) is also demonstrated.<p>

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<p>Audio converter objects convert between various linear PCM audio formats.

They can also convert between linear PCM and compressed formats.</p>

<p>Supported transformations include the following:</p>

<ul>

<li>PCM bit depth</li>

<li>PCM sample rate</li>

<li>PCM fixed point to and from PCM integer</li>

<li>PCM interleaved to and from PCM deinterleaved</li>

<li>PCM to and from compressed formats</li>

</ul>

<p>A single Audio Converter may perform more than one of the listed transformations.</p>

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