The Audiogram tab transforms input data to target gains using 1/3 gain rule across all frequencies.

• Clicking on the Audiogram adds/moves value at the current frequency.
• Double clicking removes any point at that frequency
• Selecting ShowTarget adds a dotted target line to the HA response curve.
• Select File > Save Audiogram, to export it (as .txt file).
• Select File > Open Audiogram, to import an audiogram (a .txt file).

The Audiogram file (.txt) must have the following format: Audiogram Type (0 = Standard, 1 = ), Frequency (Hz), Gain Level (dB). For example:

 0 , 250 , 5 
 0 , 500 , 20 
 0 , 750 , 30 
 0 , 1000 , 55 
 0 , 1500 , 60 
 0 , 2000 , 60 
 0 , 3000 , 65 
 0 , 4000 , 70 
 0 , 6000 , 60 
 0 , 8000 , 45 
 1 , 250 ,-30 
 1 , 500 ,-30 
 1 , 750 ,-30 
 1 , 1000 ,-30 
 1 , 1500 ,-30 
 1 , 2000 ,-30 
 1 , 3000 ,-30 
 1 , 4000 ,-30 
 1 , 6000 ,-30 
 1 , 8000 ,-30 

On the Clarujust tab, there is a frame labeled Persistent EQs and Gain. The values of these sliders is added to the Overall gain (derived from Bump Tilt, and Gain parameters) when calculating the underlying EQ settings on Ethos. They remain persistent as the B, T and G are changed and are useful as part of the initial fitting exercise. The Gain slider in this section changes the Matrix Gain on the Ethos tab. These parameters are not altered by the optimization algorithm. On the right hand side of the program, there is a check box labeled “add REOR”. This feature implements a very simple model that accounts for the sound that arrives in the ear canal of an open fitting device, bypassing the hearing aid. Ideally, it would only work when the Open fitting radio button is selected, but it does not do so for now. As a protocol issue, it is fine to use bump, tilt, and gain during the initial fitting. The Clarujust module can read the values of those parameters and use them as a starting point for further optimization.

To be added to ezOrange: