fix deprecated np.complex to np.complex128

Author: seyong92

pytsmod/pvtsm.py

@@ -60,7 +60,7 @@ def phase_vocoder(x, s, win_type='sin', win_size=2048, syn_hop_size=512,
         X = stft(x_chan, ana_hop=aw_pos, win_type=win_type,
                  win_size=win_size, zero_pad=zero_pad, fft_shift=fft_shift)
 
-        Y = np.zeros(X.shape, dtype=np.complex)
+        Y = np.zeros(X.shape, dtype=np.complex128)
         Y[:, 0] = X[:, 0]  # phase initialization
 
         N = win_size + zero_pad

pytsmod/utils/stft.py

@@ -53,7 +53,7 @@ def stft(x, ana_hop=2048, win_type='hann', win_size=4096, zero_pad=0, sr=44100,
         num_frames = ana_hop.size
         win_pos = ana_hop[0:num_frames]
 
-    spec = np.zeros((win_size // 2 + 1, num_frames), dtype=np.complex)
+    spec = np.zeros((win_size // 2 + 1, num_frames), dtype=np.complex128)
     for i in range(num_frames):
         xi = x_padded[win_pos[i]: win_pos[i] + win_size] * win