Lines Matching refs:np
1 import numpy as np namespace
14 return 1127.0 * np.log(1.0 + freq / 700.0)
26 return 700.0 * (np.exp(mels / 1127.0) - 1.0)
48 filters = np.zeros((numOfMelFilters,int(FFTSize/2+1)))
49 zeros = np.zeros(int(FFTSize // 2 ))
54 mels = np.linspace(fmin_mel, fmax_mel, num=numOfMelFilters+2)
57 linearfreqs = np.linspace( 0, fs/2.0, int(FFTSize // 2 + 1) )
72 filters[n, :] = np.hstack([0,np.maximum(zeros,np.minimum(upper,lower))])
106 result = np.zeros((numOfDctOutputs,numOfMelFilters))
107 s=(np.linspace(1,numOfMelFilters,numOfMelFilters) - 0.5)/numOfMelFilters
110 result[i,:]=np.cos(i * np.pi*s) * np.sqrt(2.0/numOfMelFilters)