Does the REUR Need to Be Subtracted for Non-occluding Fittings? What about Speechmap / SPL-o-gram Methods?

Real-ear measurement (REM) is an invaluable tool for ensuring that hearing instruments are providing the appropriate gain/output for a client’s hearing loss In this regard, there are 2 primary verification philosophies: the real-ear insertion gain (REIG) approach and the more recent real-ear aided response (REAR) / SPL-o-gram approach, each with their own relative pros and cons.