9. A system for converting speech to text, the system comprising: a digital audio signal comprising an encoding of a recorded spoken input; means for obtaining at least one measurement of said digital audio signal, the measurement comprising a first measured portion of said recorded spoken input and a second measured portion of said recorded spoken input; means for comparing said first measured portion of said recorded spoken input to a first database of digital audio signal characteristics; means for identifying at least one characteristic of said digital audio signal based on said comparison; means for transcribing said first measured portion of said spoken input using said at least one characteristic of the digital audio signal to create an initial transcription; means for backfilling said first database of digital audio signal characteristics with at least one characteristic from a second database of digital audio signal characteristics; means for identifying a second characteristic of said digital signal by comparing said second measured portion of said digital signal to said backfilled first database of digital audio signal characteristics; and means for transcribing said second measured portion of said recorded spoken input using said second characteristic of said digital signal.
9. A system for converting speech to text, the system comprising: a digital audio signal comprising an encoding of a recorded spoken input; means for obtaining at least one measurement of said digital audio signal, the measurement comprising a first measured portion of said recorded spoken input and a second measured portion of said recorded spoken input; means for comparing said first measured portion of said recorded spoken input to a first database of digital audio signal characteristics; means for identifying at least one characteristic of said digital audio signal based on said comparison; means for transcribing said first measured portion of said spoken input using said at least one characteristic of the digital audio signal to create an initial transcription; means for backfilling said first database of digital audio signal characteristics with at least one characteristic from a second database of digital audio signal characteristics; means for identifying a second characteristic of said digital signal by comparing said second measured portion of said digital signal to said backfilled first database of digital audio signal characteristics; and means for transcribing said second measured portion of said recorded spoken input using said second characteristic of said digital signal. 18. A system according to claim 9 , further comprising displaying means for displaying the second transcription on a monitor.