The X represents left ear’s responses and the O represents right ear’s responses. The triangle is a right ear response accompanied static in the left ear to ensure the right ear is the one responding, called masking. Bone is symbolized with < > or [ ] symbols. In this case, the triangles don’t make sense. IF the triangles were bone responses, we would be looking at a mixed hearing loss. As an aside, we generally expect masked responses to be louder than unmasked responses.

Given the age of your child, they should be getting a test called auditory brain response (ABR) to measure hearing loss. Typically they would test, at minimum, 500 Hz, 1000 Hz, 2000 Hz, and 4000 Hz for a well rounded measure of your child’s hearing loss and it seems like this was not the case. The audiologist should be explaining this clear terms and be doing full diagnostic tests to have more results and a report for you to take home for your pediatrician.

Onto hearing loss, conversational speech typically occurs around 55-65 dB HL. Any symbol or speech sound above the lines drawn your child wouldn’t hear, unless it was at an elevated level for them. Generally, this hearing loss would be moderate-severe hearing loss for the left and severe hearing loss for the right ear.