public static Builder newBuilder(
        com.google.cloud.speech.v1p1beta1.StreamingRecognitionConfig.VoiceActivityTimeout
            prototype) {
      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
    }
<pre>
Duration to timeout the stream after speech ends.
</pre>

<code>.google.protobuf.Duration speech_end_timeout = 2;</code>
java-speech/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/StreamingRecognitionConfig.java