14. The method of claim 13 , wherein the obtaining step includes: (a1) receiving, at an automatic speech recognition system, audio from the sender; (a2) pre-processing the received audio to generate acoustic feature vectors; (a3) decoding the generated acoustic feature vectors to produce a plurality of speech hypotheses; (a4) post-processing the speech hypotheses to identify speech in the audio from the sender and to create a transcript of the identified speech; and (a5) storing the identified speech.
14. The method of claim 13 , wherein the obtaining step includes: (a1) receiving, at an automatic speech recognition system, audio from the sender; (a2) pre-processing the received audio to generate acoustic feature vectors; (a3) decoding the generated acoustic feature vectors to produce a plurality of speech hypotheses; (a4) post-processing the speech hypotheses to identify speech in the audio from the sender and to create a transcript of the identified speech; and (a5) storing the identified speech. 15. The method of claim 14 , wherein the modifying of the text-to-speech model in step (c) comprises: estimating a model transformation; and applying the model transformation to the TTS model selected in step (b) to produce an adapted TTS model, wherein the processing step (e) includes using the adapted TTS model to produce the synthesized speech.