corrected STFT

utils.py

@@ -100,13 +100,13 @@ def create_spectrogram(sig, directory, names, cmap, minimum, window_size=1024, o
     :param overlap (float): Ratio of overlapping samples between each window (default 50%).
     """
     if overlap >= 1:
+        hop = window - overlap
         print(f'You put a hop value over 1. This has been corrected to have {overlap} as overlap size between window')
-        overlap_size = overlap
     else:
-        overlap_size = window_size * overlap
+        hop = window_size * (1-overlap) # As hop length is the number of audio samples between adjacent STFT columns
 
     stft = librosa.stft(sig, n_fft=int(window_size),
-                        hop_length=int(overlap_size), window='hann')  # Compute the STFT
+                        hop_length=int(hop), window='hann')  # Compute the STFT
     stft = np.log10(np.abs(stft))  # Adapt the Complex-valued matrix
     fig = plt.figure()
     if minimum == 'True':