added to the class list, then 'silence' class samples will automatically</span>
<span class="sd">            be added to batches. This specifies the percentage of of samples to generate relative the smallest number</span>
<span class="sd">            of samples of other classes. For instance, if another class has 1000 samples and empty_class_percentage=0.8,</span>
<span class="sd">            then the number of 'empty' class samples generated will be 800.</span>
<span class="sd">            Set this paramet