improved type handling

utils.py

@@ -363,7 +363,10 @@ def plotBeattimes(beattimes: np.ndarray,
     )
     
     # Process and plot primary beat times
-    beat_indices = np.round(beattimes * sr).astype(int)
+    if isinstance(beattimes[0], str):
+        beat_indices = np.round(np.array(beattimes, dtype=float) * sr).astype(int)
+    else:
+        beat_indices = np.round(beattimes * sr).astype(int)
     beat_indices = beat_indices[beat_indices < len(audiodata)]
     beat_amplitudes = audiodata[beat_indices]