G50 G65 G80 clarification

Seems in the right ballpark to me.

I used to think that G50 is the amplification prescription for 50dB, and G35, G65, G80 are at their dB’s with the intermediate dB values calculated based on the algorithm used and the type of compression chosen. E.g. a linear compression would only allow for a straight line approximation between bands and more complex types for other (, more comfortable,) solutions.

Nowadays, I sometimes fear that it is just a table to tweak with without a one-on-one correlation to physical sound levels.

This is not a direct answer to the OP’s question but it explains a little about what the G50, G65 and G80 levels are used for. The description is about setting a digital aid up to be like a analog aid.

This is a copy and paste from um-bongo.

It’s pretty simple: you either tell the aid to act in a more linear fashion in the prerequisites or just let it default a gain setting, then go into the advanced gain adjustments and set the higher gain values the same as the G50 while winding up the MPOs to their maximum and turning the feedback manager off.

If you do this in a nominal music program, you’ll also inhibit a significant amount of the noise management and speech enhancement too.

You’ll have a nice linear sound and very loud sounds will be very loud. This will probably give you more feedback, auditory fatigue and may result in more long term damage to your hearing.

The only people who should be asking for a fully linear aid are those with a purely conductive loss. For everyone else it’s an impossible goal, due to recruitment. However there is merit in asking for an aid to be more linear in order to preserve normal loudness growth - apply judiciously