Technique AUdioSpectrumCentroidType Document ISO/IEC WD 15938-4 Name Melanie Jackson, Thibaut Sacreste University of Wollongong, Australia EMail tas48@uow.edu.au Type low-level audio descriptor extraction tool External Libraries -- Related Ds/DSs -- Used Ds/DSs -- Input Wav file Extraction Yes Client Appl NA Summary This component is the AudioSpectrumCentroid descriptor extraction tool Strong Points -- Limitations Only process '.wav' and '.au' audio files. The whole audio file is processed Known Problems -- Parameters audioFile : string : name of the audio file to process hopSize : string : hopsize in the mpeg7 specified format writeXML : boolean : flag for the generation of the XML file XMLFile (optional) : string : name of the generated XML file Output AudioSpectrumCentroid : vector : vector of length N containing the values of the ASC with: - N=number of audio frames 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 'mpeg7ASC' with the required parameters Function call example >> [AudioSpectrumCentroid, XMLFile] = AudioSpectrumCentroidD('test.wav','PT10N1000F',1,'ASC.xml')