os.getcwd()
.0%| | 0/30 [00:00<?, ?it/s]
3%|▎ | 1/30 [00:00<00:03, 9.52it/s]
7%|▋ | 2/30 [00:00<00:02, 9.51it/s]
10%|█ | 3/30 [00:00<00:02, 9.50it/s]
13%|█▎ | 4/30 [00:00<00:02, 9.49it/s]
17%|█▋ | 5/30 [00:00<00:02, 9.53it/s]
20%|██ | 6/30 [00:00<00:02, 9.50it/s]
23%|██▎ | 7/30 [00:00<00:02, 9.56it/s]
27%|██▋ | 8/30 [00:00<00:02, 9.57it/s]
30%|███ | 9/30 [00:00<00:02, 9.66it/s]
33%|███▎ | 10/30 [00:01<00:02, 9.69it/s]
37%|███▋ | 11/30 [00:01<00:01, 9.66it/s]
40%|████ | 12/30 [00:01<00:01, 9.59it/s]
43%|████▎ | 13/30 [00:01<00:01, 9.57it/s]
47%|████▋ | 14/30 [00:01<00:01, 9.55it/s]
50%|█████ | 15/30 [00:01<00:01, 9.44it/s]
53%|█████▎ | 16/30 [00:01<00:01, 9.46it/s]
57%|█████▋ | 17/30 [00:01<00:01, 9.54it/s]
60%|██████ | 18/30 [00:01<00:01, 9.58it/s]
63%|██████▎ | 19/30 [00:01<00:01, 9.56it/s]
67%|██████▋ | 20/30 [00:02<00:01, 9.64it/s]
70%|███████ | 21/30 [00:02<00:00, 9.66it/s]
73%|███████▎ | 22/30 [00:02<00:00, 9.61it/s]
77%|███████▋ | 23/30 [00:02<00:00, 9.65it/s]
80%|████████ | 24/30 [00:02<00:00, 9.63it/s]
83%|████████▎ | 25/30 [00:02<00:00, 9.60it/s]
87%|████████▋ | 26/30 [00:02<00:00, 9.61it/s]
90%|█████████ | 27/30 [00:02<00:00, 9.57it/s]
93%|█████████▎| 28/30 [00:02<00:00, 9.57it/s]
97%|█████████▋| 29/30 [00:03<00:00, 9.53it/s]
100%|██████████| 30/30 [00:03<00:00, 9.50it/s]
100%|██████████| 30/30 [00:03<00:00, 9.56it/s]
По теореме котельникова у вас тут частота дискретизации низковата для 67 кгц