Jerger (21) for both 226- and 1,000-Hz probe-tone frequencies
226 Hz 1,000 Hz Description
A 1 Tympanogram with a single peak and TPP
around 0 daPa
B 2 Flat sloping tympanogram (no distinct peak, YME
G 0.2 mmho and/or TW Q 200 daPa)
C 3 Tympanogram with a single peak and TPP
Gj150 daPa
D 4 Double-peaked tympanogram with TPP
around 0 daPa
Du 4u Double-peaked tympanogram with TPP Gj150
daPa (under pressure)