It is a graph of the softest sounds you detected, ear by ear and pitch by pitch. Once you know which way is which, it stops being mysterious.
The audiogram is the chart your provider produces at the end of a hearing test. Ask for a copy, and ask for it to be walked through with you while you are still in the room. It is your result, it will be the reference point for every conversation that follows, and a second office will want to see it.
Low pitches sit on the left of the chart and high pitches on the right, roughly from the rumble of a truck to the hiss at the end of the word 'grass'. Loudness runs down the side, quiet at the top and loud at the bottom. Each mark is the softest sound you responded to at that pitch. The further down the chart the marks sit, the louder something has to be before you hear it.
The right ear and the left ear are plotted with different symbols, usually in different colors. This is the first thing to look at. Two ears that track each other tell a different story from one ear sitting well below the other, and a clear difference between them is worth asking about directly.
Sound is presented two ways: through the ear canal, and through a small vibrator placed on the bone behind the ear, which bypasses the outer and middle ear. When both routes give similar results, the finding sits in the inner ear or the nerve. When bone conduction is better than air conduction, something in the outer or middle ear is blocking the path, and that gap is the kind of finding that may point toward a physician rather than a device.
A very common pattern slopes downward toward the high pitches, meaning low-pitched sound comes through while high-pitched sound does not. That shape explains a specific complaint precisely: speech is audible but not clear. Vowels carry the volume and sit low, while consonants like s, f, th and k carry much of the meaning and sit high. Losing the top of the range takes the clarity and leaves the loudness, which is why turning the television up does not fix it.
Alongside the tone thresholds there is usually a word recognition score, measured by repeating back words at a comfortable level. It answers a different question: not what you detect, but what you make sense of. Two people with similar-looking charts can have different scores here, and it is part of the conversation about what a hearing aid can and cannot do for you.
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