Technique	AudioSpectrumProjectionType
Document	ISO/IEC WD 15938-4
Name		Michael Casey
EMail		mkc@media.mit.edu
Type		low-level audio descriptor extraction tool
External Libraries 	--
Related Ds/DSs	AudioSpectrumBasisType, SoundRecognitionModelType
Used Ds/DSs	--
Input		Wav file
Extraction	Yes
Client Appl	NA
Summary		Extract low-dimensional spectral features from wav files 
Strong Points 	-- 
Limitations	Processes '.wav' audio files only.
		 
Known Problems 	--	
Parameters	fileList, cell array list of filename strings of the audio files to process
		AudioSpectrumBasis -- basis function matrix extracted by AudioSpectrumBasis
		writeXML : boolean : flag for the generation of the XML file [0]
		XMLFile (optional) : string : name of the generated XML file [empty]
		

Output		AudioSpectrumProjection : 2-D matrix:M*N matrix containing the basis functions
					  	 - M=number of audio frames
						 - N=number of basis functions
		XMLFile : string : name of the generated XML file
		
Usage		1. run matlab
		2. change the working directory to the directory containing the function
		3. call the function 'AudioSpectrumProjection' with the required parameters

Function call example :
>> [AudioSpectrumProjection,  XMLFile] = AudioSpectrumProjection({'test.wav','test2.wav'},AudioSpectrumBasis,'PT10N1000F',1,'ASP.xml')