adamstark@30: # need scikits audiolab for reading audio files
adamstark@30: from scikits.audiolab import wavread
adamstark@30: 
adamstark@30: # need to import btrack, our beat tracker
adamstark@30: import btrack
adamstark@30: 
adamstark@30: # set the path to an audio file on your machine
adamstark@30: audioFilePath = "/Users/adamstark/Documents/Audio/Databases/Hainsworth/audio/001.wav"
adamstark@30: 
adamstark@30: # read the audio file
adamstark@30: audioData, fs, enc = wavread(audioFilePath)     # extract audio from file
adamstark@30: 
adamstark@30: # convert to mono if need be
adamstark@30: if (audioData[0].size == 2):
adamstark@30:     print "converting to mono"
adamstark@30:     data = np.average(data,axis=1)
adamstark@30: 
adamstark@30: # ==========================================    
adamstark@30: # Usage A: track beats from audio            
adamstark@30: beats = btrack.trackBeats(audioData)    
adamstark@30: 
adamstark@30: # ==========================================
adamstark@30: # Usage B: extract the onset detection function
adamstark@30: onsetDF = btrack.calculateOnsetDF(audioData)         
adamstark@30: 
adamstark@30: # ==========================================
adamstark@30: # Usage C: track beats from the onset detection function (calculated in Usage B)
adamstark@30: ODFbeats = btrack.trackBeatsFromOnsetDF(onsetDF)