public com.google.cloud.dialogflow.v2.OutputAudioConfig getOutputAudioConfig() {
    return outputAudioConfig_ == null
        ? com.google.cloud.dialogflow.v2.OutputAudioConfig.getDefaultInstance()
        : outputAudioConfig_;
  }
public com . google . cloud . dialogflow . v2 . OutputAudioConfig getOutputAudioConfig ( ) { return outputAudioConfig_ == null ? com . google . cloud . dialogflow . v2 . OutputAudioConfig . getDefaultInstance ( ) : outputAudioConfig_ ; }
<pre>
Instructs the speech synthesizer how to generate the output audio. This
field is populated from the agent-level speech synthesizer configuration,
if enabled.
</pre>

<code>.google.cloud.dialogflow.v2.OutputAudioConfig output_audio_config = 6;</code>