public com.google.protobuf.Duration getSpeechStartTimeout() {
        if (speechStartTimeoutBuilder_ == null) {
          return speechStartTimeout_ == null
              ? com.google.protobuf.Duration.getDefaultInstance()
              : speechStartTimeout_;
        } else {
          return speechStartTimeoutBuilder_.getMessage();
        }
      }
<pre>
Duration to timeout the stream if no speech begins. If this is set and
no speech is detected in this duration at the start of the stream, the
server will close the stream.
</pre>

<code>.google.protobuf.Duration speech_start_timeout = 1;</code>

@return The speechStartTimeout.
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/StreamingRecognitionFeatures.java