@java.lang.Override
  public java.lang.String getRecordingDeviceName() {
    java.lang.Object ref = recordingDeviceName_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      recordingDeviceName_ = s;
      return s;
    }
  }
<pre>
The device used to make the recording.  Examples 'Nexus 5X' or
'Polycom SoundStation IP 6000' or 'POTS' or 'VoIP' or
'Cardioid Microphone'.
</pre>

<code>string recording_device_name = 7;</code>

@return The recordingDeviceName.
java-speech/proto-google-cloud-speech-v1/src/main/java/com/google/cloud/speech/v1/RecognitionMetadata.java