@java.lang.Override
    public final Builder mergeUnknownFields(
        final com.google.protobuf.UnknownFieldSet unknownFields) {
      return super.mergeUnknownFields(unknownFields);
    }
<pre>
Set to true to use an enhanced model for speech recognition.
If `use_enhanced` is set to true and the `model` field is not set, then
an appropriate enhanced model is chosen if an enhanced model exists for
the audio.

If `use_enhanced` is true and an enhanced version of the specified model
does not exist, then the speech is recognized using the standard version
of the specified model.
</pre>

<code>bool use_enhanced = 14;</code>

@return This builder for chaining.
java-speech/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/RecognitionConfig.java