The new Sonnox Fraunhofer Pro-Codec plug-in makes it possible to precisely audition codecs in real time. This breaks away from the current time-consuming cycle of having to encode the mix to MP3/AAC, preview it, tweak it and then go back and re-render. The entire process is accomplished on the fly, and frees the engineer to focus on producing a compensated, optimized mix.
See more here:
NAMM 2011: Sonnox Fraunhofer Pro-Codec
Between Chords, Melody and Lyrics, Something Should Be Predictable