Check feature feasability

[patientzero]

• [ ] As a researcher I need to decide which features and regressors need to be ported

• includes feature pipeline
• includes classification

This means checking if features can be properly extracted on Android and processed.

[TAriasVergara]

Neither classification or regression are going to be performed on the phone.

The speech features suitable to compute on the phone are: jitter, voice rate and standard deviation of f0.

Word error rate and phonological features are going to be computed on the server.