private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.speech.v2.RecognitionConfig,
            com.google.cloud.speech.v2.RecognitionConfig.Builder,
            com.google.cloud.speech.v2.RecognitionConfigOrBuilder>
        getDefaultRecognitionConfigFieldBuilder() {
      if (defaultRecognitionConfigBuilder_ == null) {
        defaultRecognitionConfigBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.speech.v2.RecognitionConfig,
                com.google.cloud.speech.v2.RecognitionConfig.Builder,
                com.google.cloud.speech.v2.RecognitionConfigOrBuilder>(
                getDefaultRecognitionConfig(), getParentForChildren(), isClean());
        defaultRecognitionConfig_ = null;
      }
      return defaultRecognitionConfigBuilder_;
    }
<pre>
Default configuration to use for requests with this Recognizer.
This can be overwritten by inline configuration in the
[RecognizeRequest.config][google.cloud.speech.v2.RecognizeRequest.config]
field.
</pre>

<code>.google.cloud.speech.v2.RecognitionConfig default_recognition_config = 6;</code>
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/Recognizer.java