@java.lang.Override
  public com.google.cloud.video.livestream.v1.AudioStream getAudioStream() {
    if (elementaryStreamCase_ == 2) {
      return (com.google.cloud.video.livestream.v1.AudioStream) elementaryStream_;
    }
    return com.google.cloud.video.livestream.v1.AudioStream.getDefaultInstance();
  }
<pre>
Encoding of an audio stream.
</pre>

<code>.google.cloud.video.livestream.v1.AudioStream audio_stream = 2;</code>

@return The audioStream.
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/ElementaryStream.java