Also see our ANSI 87 – ANSI 96 comparison.
|AGC aids should have their compression set to have maximum effect for all measurements||AGC aids should have their compression set to have minimum effect for all tests except for i/o and attack & release measurements. For those tests, the compression should be set to have maximum effect.|
|Measured reference test gain must be within 1 dB of the reference test setting target.||Measured reference test gain must be within 1.5 dB of the reference test setting target.|
|Frequency response curve measured at 60 dB SPL for linear aids and 50 db SPL for AGC aids.||Frequency response curve measured at 60 dB SPL for all aids|
|Equivalent Input Noise (EIN) formula uses an input value of 60 dB.||EIN formula uses an input value of 50 dB.|
|Full-on gain measured at 60 or 50 dB SPL for linear aids, and 50 dB SPL for AGC aids.||Full-on gain always measured at 50 dB SPL.|
|Simulated Telephone Sensitivity (STS)—the difference between the microphone response curve HFA and the telecoil response curve HFA.||Same measurement, but it is now called Relative Simulated Equivalent Telephone Sensitivity (RSETS).|