dependency notes

Author: nfriedly

examples/speech_to_text_microphone_input/readme.md

@@ -1,5 +1,10 @@
-# IBM Watson Speech to Text Microphone Transcription Example
+# IBM Watson Speech to Text Microphone Transcription Examples
 
 Uses IBM Watson and Node.js to transcribe speech captured from the computer's microphone.
 
-This example requires [arecord](http://alsa-project.org/) (Linux) or [sox](http://sox.sourceforge.net/) (Mac/Windows).
+The `transcribe-mic-to-file.js` example uses the more flexible [mic](https://www.npmjs.com/package/mic) package,
+which requires that you have either [arecord](http://alsa-project.org/) (Linux) or
+[sox](http://sox.sourceforge.net/) (Mac/Windows).
+
+The `transcribe-mic-to-console.js` example uses the [line-in](https://www.npmjs.com/package/line-in) package,
+which has no dependencies.