Copyright © 2013-2017 MultiMedia Soft AnalyzeSoundFromFile method

Remarks

 

Starts the analysis of the given media file. Supported media file formats can be divided in three categories:

 

 

 

for a full list of encodings supported by the single audio formats available on the table above see the Appendix A - Encodings for audio formats supported natively section.

 

 

 

For analyzing files in RAW format use the AnalyzeSoundFromFileRaw method.

 

Data resulting from an analysis session can be discarded from memory using the FreeMemory method.

 

By default the full audio file is analyzed: in case you should only need to analyze a specific portion of the audio file, you could limit the analyzed range through the AnalyzeSoundFromFileRangeSet method.

 

In case of media files whose format is not supported natively, the call to this method will try extracting the audio track through Microsoft Media Foundation or through Microsoft DirectShow: in case of successful opening of the media file, during the audio extraction the container application will be notified about the current advancement through the AudioExtractFromMediaFileStart event followed by a number of AudioExtractFromMediaFilePerc events and finally by the AudioExtractFromMediaFileDone event.

 

After the audio extraction or when dealing with natively supported formats, the waveform analysis phase starts automatically and the container application is notified about the current advancement through the WaveAnalysisStart event followed by a number of WaveAnalysisPerc events and finally by the WaveAnalysisDone event.

 

When dealing with audio or video formats not supported natively, in case you should be willing to perform waveform analysis automatically during the extraction, you may invoke the EnableAutoWaveAnalysisOnLoad method.

 

 

Syntax

 

 

 

 

 

 

Return value