Speech Processing applications: stereo data for features
Is there a standard way to handle the computations of speech features for Stereo data?


Not really. It really depends on why your recording is stereo in the first place and how exactly the recordings are made.

The preferred method would be to have a single close up microphone recording. Two or more channel can be helpful, if it's far field recording. Google uses two channels, Amazon uses seven. If it's stereo from produced media (movie, song, etc.) then the best extraction method would depend on the way its produced, but typically summing the two channels would be the best.