label-studio/examples/audio_regions/config.xml

Data Labeling Tool that is backend agnostic and can be embedded into your applications

<View>
  <Header value="Select regions:"></Header>
  <Labels name="label" toName="audio" choice="multiple">
    <Label value="Beat" background="yellow"></Label>
    <Label value="Voice" background="red"></Label>
    <Label value="Guitar" background="blue"></Label>
    <Label value="Other"></Label>
  </Labels>
  <Header value="Select genre:"></Header>
  <Choices name="choice" toName="audio" choice="multiple">
    <Choice value="Lo-Fi" />
    <Choice value="Rock" />
    <Choice value="Pop" />
  </Choices>
  <Header value="Listen the audio:"></Header>
  <AudioPlus name="audio" value="$url"></AudioPlus>
</View>