#window_start = 3*12288 #window_end = window_start + 12288 #compute the STFT print("STFT...") #create the frequencies freq_spacing = 1.0 / (rate) #the spacing val_freq = 1.0 / (windowSize * freq_spacing) #the total number of freq N_val = math.floor(windowSize / 2) + 1 # print("Total number of freqs %d\n", N_val) frequencies = [] for i in range(0, N_val): frequencies.append(i * val_freq) magnitude = stft.play(signal, rate, windowSize, hopSize) print(max(frequencies)) #print(magnitude.shape) print("Roll magnitude values") magnitude = np.rollaxis(magnitude, -1, -2) #print(magnitude.shape) start_time = int(windowSize / 2) stop_time = int(magnitude.shape[-1] - windowSize / 2 + 1) time = np.arange(windowSize / 2, signal.shape[-1] - windowSize / 2 + 1, windowSize - (windowSize / 2)) / float(rate) time -= (windowSize / 2) / rate #for i in range(0,10):# # print(magnitude[i]) #PLOT
#UNCOMMENT if you want to analyse just a piece of the entire wav #save_wav = audData[:,0][0:windowSize]#[length:(length*2)] #scipy.io.wavfile.write("study.wav",rate,save_wav) #window_start = 3*12288 #window_end = window_start + 12288 #compute the STFT print("STFT...") #signal = [1,2,3,4,5,6,7,8,9,10] #signal = np.asarray(signal) #signal = padding(signal,8) #print(signal) #rate = 1 #windowSize = 8 #hopSize = 8 magnitude, frequencies = stft.play(signal, rate, windowSize, hopSize) print(max(frequencies)) #print(magnitude.shape) print("Roll magnitude values") magnitude = np.rollaxis(magnitude, -1, -2) #print(magnitude.shape) start_time = int(windowSize / 2) stop_time = int(magnitude.shape[-1] - windowSize / 2 + 1) time = np.arange(windowSize / 2, signal.shape[-1] - windowSize / 2 + 1, windowSize - (windowSize / 2)) / float(rate) time -= (windowSize / 2) / rate #for i in range(0,10):# # print(magnitude[i]) #PLOT