Inventis TIMPANI Manual Del Usuario página 22

If the test has not been able to determine one or more of the above values, a
double dash "--" will appear in place of the number.
14
Compliance: Amplitude
tympanogram peak measured against
ECV. The unit of measurement reflects
that of the tympanogram.
Gradient of the tympanogram: width of
the tympanogram at 50% of the
compliance value (only for the 226 Hz
probe tone)
of the