How do you convert ISO to ANSI for the audiometric testing?

The conversion from ISO (International Organization for Standardization) to ANSI (American National Standards Institute) standards for audiometric testing is primarily based on the specific adjustments that need to be made to reflect the differences between these two standards. The correct approach is to average the results after subtracting specified values because each frequency has defined correction values that must be applied to each reading to align them with ANSI standards.

This method ensures that the audiometric results are consistent, reliable, and comparable across different testing environments and standards. Adopting an averaging technique post-subtraction allows for a standardized result that accounts for frequency variations in the hearing thresholds outlined by ANSI. Therefore, averaging the adjusted results is essential for achieving accurate conversions and ensuring compliance with the requisite testing standards.