1. A method in an audio decoder for generating an output audio signal corresponding to a lost frame of an audio bit-stream, comprising: analyzing at least a portion of a previously-decoded audio signal corresponding to previously-decoded frames of the audio bit-stream; selecting one of a plurality of frame loss concealment (FLC) techniques based on the results of the analysis; and applying the selected one of the plurality of FLC techniques to the previously-decoded audio signal to generate the output audio signal corresponding to the lost frame.