Masking is applied in IA-AMTAS using a proprietary masking method developed by the researchers behind AMTAS as a test technique. In the settings of IA-AMTAS you can decide whether or not to apply masking. You will notice that if you apply masking then the result will be a masked audiogram at all frequencies. This tells us that masking was implemented throughout the entire test and therefore IA-AMTAS does not follow the same masking procedure as traditional manual audiometry. Remember the quality indicator to look at with regards to masking is the masker alert rate. This will tell you if there has been a risk of under-masking or over-masking throughout the test.