Hi i need help with speech to text conversion in android, ive been googling the topic for an hour now and every help i find shows me how to convert text into speech and not the other way arround,

<http://android-developers.blogspot.com/2009/09/introduction-to-text-to-speech-in.html>

<http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/app/TextToSpeechActivity.html>

the two links above also show me how to convert text into speech, 
im basically building an app that records whatever the user speeks and then converts it into text, im having problems converting the audio

please tell me if its even possible and if it is then can you please give me a link,