@java.lang.Override
    public boolean hasExplicitDecodingConfig() {
      return decodingConfigCase_ == 8;
    }
<pre>
Explicitly specified decoding parameters.
Required if using headerless PCM audio (linear16, mulaw, alaw).
</pre>

<code>.google.cloud.speech.v2.ExplicitDecodingConfig explicit_decoding_config = 8;</code>

@return Whether the explicitDecodingConfig field is set.
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/RecognitionConfig.java