1. A method comprising: processing, using a computer, a text source to form a multi-dimensional array of elements, wherein each element is indexed by at least a first dimension representative of a time frame of an audio representation of the text source and a second dimension representative of a phoneme state, and further wherein each element comprises a value that characterizes a probability associated with an occurrence of a phoneme state within a time frame of the audio representation of the text source; receiving a search query via a text-based interface of a computer, an audio-based interface of a computer, or some combination thereof; processing the query using a computer to generate a phonetic representation of the query; and searching, using a computer, the multi-dimensional array of elements according to the phonetic representation of the query to locate one or more putative instances of the query in the text source.