Dear Sir, I might go wrong, but being a person of Indian Community always demand for any easiest way of approaching problem.
First thing I can never remove any brain signals thru any of codified or non-codified instruments, neither can optimize for any o/p visualization of work on the phone as we can’t be able to control any brain waves(em waves), so I prefer of using an Headset and ear phone wires of Optic Fibre which itself has a self frequency, predetermined and to match the frequency deviation in the Smart Phone, the information of Right Side of Brain are sent thru the wire on the Right side nobes with some emotional ratings glimpsed on the Smart Phone Glimpse,and same with that for the left side , these ratings of different emotions are predetermind, there a codification is a real need. so accordingly the rates will help the person to change his mood and levels of stability thru a biometric use like eye and facial codification for rest of the job.
I hope you may like it and continue with me
Thanks & Regards.