How would you specify a hearing instrument circuit with a gain of 45 dB, an increase in output of 6 dB, and a peak output of 115 dB SPL?

To specify a hearing instrument circuit accurately, you want to present the parameters in a coherent order that typically reflects how hearing aids are characterized. The gain, output increase, and peak output are ordered in a way that makes the specification clear and meaningful to those in the field.

In this context, the first value typically corresponds to the peak output, which reflects the maximum sound pressure level (dB SPL) that the hearing aid can produce. Following that, the gain is specified because it indicates the amount of amplification being provided to the user's input sound. Finally, the increase in output informs about how much the output level can be boosted above the nominal level.

By specifying it as 115 / 45 / 6, the parameters align with the common reporting formats in the industry, presenting the peak output first, followed by the gain and then the increase in output. This systematic approach allows practitioners to quickly understand the performance limits and amplification characteristics of the device, facilitating effective fitting and client management.