PSI file extension - Psion A-law audio file
What is psi file? How to open psi files?
File type specification:
The PSI file extension is associated with some solutions developed by Psion Teklogix a part of Psion company. The *.psi file stores a-law audio data.
The a-law audio file format seems to be obsolete. The Psion Teklogix is now part of Motorola.