1. A method for acoustic adaptation comprising the steps of: collecting at least one audio file associated with a partial transcript of the audio file; building a topic language model from the partial transcript; interpolating the topic language model with a general language model; using a speaker-independent acoustic model and the interpolated language model in a speech recognition engine on the audio file to generate a semi-literal transcript; and generating a speaker dependent acoustic model using the semi-literal transcript and the audio file in an acoustic adaptation engine.