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    <p>Sorry if I am stating the obvious, but you should be able to achieve this the same way as described here:</p> <p><a href="https://stackoverflow.com/questions/1859415/export-every-frame-as-image-from-a-movie-file-quicktime-api/1940361#1940361">Export every frame as image from a Movie-File (QuickTime-API)</a></p> <p>Or do you need to do this in a non-interactive way?</p> <p><strong>Edit</strong></p> <p>To export the audio media of a Movie file to WAVE non-interactively using a Movie Exporter, use the following code:</p> <pre><code>"include "QuickTimeComponents.h" ... // aquire Movie ... ComponentDescription desc; MovieExportComponent exporter; char filename[255]; FSSpec fsspec; int flags; // first we have to find a Movie Exporter capable of eporting the format we want desc.componentType = MovieExportType; desc.componentSubType = kQTFileTypeWave; // 'WAVE' desc.componentManufacturer = SoundMediaType; desc.componentFlags = 0; desc.componentFlagsMask = 0; // and create an instance of it exporter = OpenComponent( FindNextComponent( 0, &amp;desc ) ); // then set up a FSSpec for our output file sprintf( outfilename, "C:/test.wav" ); c2pstr( outfilename ); FSMakeFSSpec( 0, 0L, (ConstStr255Param)outfilename, &amp;fsspec ); // if you do error handling take care to ignore fnfErr being returned // by FSMakeFSSpec - we're about to create a new file after all // then finally initiate the conversion flags= createMovieFileDeleteCurFile | movieToFileOnlyExport; ConvertMovieToFile( movie, 0, &amp;fsspec, kQTFileTypeWave, 'TVOD', 0, 0, flags, exporter ); CloseComponent( exporter ); ... // Clean up ... </code></pre>
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    1. POHow to export audio-media from a MOV-file with QuickTime-API?
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    1. POHow to export audio-media from a MOV-file with QuickTime-API?
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    1. COa non-interactive way would be better, yes.
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    2. COi tried this way, and QuickTime also creates a WAV-File, but it has only 84kb size... so you can say there is no data in it... why?
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    3. COif you check the return value of ConvertMovieToFile() - does it return a value != noErr? The return value might give hint on what goes wrong in this case...
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