Abstract
There are recently the marked advances of audiology. And new units and words regarding with audiology appered before our clinicers, so I explained of the following.
I Strength of tone.
1) Physical unit
2) db? audiograph?
3) Reason of reviewing db with logarism
4) Significance of hearing loss
II Loudness of tone
III Hearing loss on the tuning fork tests.
IV Significance of speaking test.
