public java.lang.String getRecordingDeviceName() {
      java.lang.Object ref = recordingDeviceName_;
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        recordingDeviceName_ = s;
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }
<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