title: CNN training accuracy drop suddenly from 94% into 48%
body: <p>I am working in audio classification using CNN. The raining accuracy goes normally in an increasing manner till it reaches (94.9%) in epoch (61), then all the sudden in epoch (62) the training accuracy dropped to (48.37%). I don't know what is the problem that causes this.</p>
  
  <pre><code>37792/37792 [===========] - 1056s 28ms/step - loss: 0.1544 - acc: 0.9490
  Epoch 61/100
  37792/37792 [==========] - 1056s 28ms/step - loss: 8.3078 - acc: 0.4837
  Epoch 62/100
  .......................................................
  </code></pre>