Audio-Text in Unix

Hello all,
Could anyone help to me :as to how can i record an audio file in unix and convert it into a text . Or anything with audio recording to get started would help .
thanks,

Record voice data and compress it before storing it to a file:

#audiorecord | audioconvert -f g721 > mydata.au

I need a code that would allow me to record audio ..

Hey,

How you are getting audio file into the unix/aix environment ?
I'ld appreciate if you'll share some knowledge.

Thanks.
Varun:b: