public Builder clearAutoDecodingConfig() {
      if (autoDecodingConfigBuilder_ == null) {
        if (decodingConfigCase_ == 7) {
          decodingConfigCase_ = 0;
          decodingConfig_ = null;
          onChanged();
        }
      } else {
        if (decodingConfigCase_ == 7) {
          decodingConfigCase_ = 0;
          decodingConfig_ = null;
        }
        autoDecodingConfigBuilder_.clear();
      }
      return this;
    }
<pre>
Automatically detect decoding parameters.
Preferred for supported formats.
</pre>

<code>.google.cloud.speech.v2.AutoDetectDecodingConfig auto_decoding_config = 7;</code>
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/RecognitionConfig.java