$ SilenceDetector                                 
<?xml version="1.0" encoding="UTF-8"?>
<Schema>
  <Uri>descriptionScheme:www.iua.upf.edu:clam:none</Uri>
  <Attributes>
    <Attribute name="Silences" scope="Song" type="Segmentation">
      <ChildScope></ChildScope>
      <SegmentationPolicy>Discontinuous</SegmentationPolicy>
    </Attribute>
  </Attributes>
</Schema>