private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.video.livestream.v1.AudioFormat,
            com.google.cloud.video.livestream.v1.AudioFormat.Builder,
            com.google.cloud.video.livestream.v1.AudioFormatOrBuilder>
        getAudioFormatFieldBuilder() {
      if (audioFormatBuilder_ == null) {
        audioFormatBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.video.livestream.v1.AudioFormat,
                com.google.cloud.video.livestream.v1.AudioFormat.Builder,
                com.google.cloud.video.livestream.v1.AudioFormatOrBuilder>(
                getAudioFormat(), getParentForChildren(), isClean());
        audioFormat_ = null;
      }
      return audioFormatBuilder_;
    }
<pre>
Properties of the audio format.
</pre>

<code>.google.cloud.video.livestream.v1.AudioFormat audio_format = 2;</code>
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/AudioStreamProperty.java