An audiogram is often a graph of hearing thresholds at many frequencies in each ear. Thresholds which might be twenty five dB HL (hearing degree) or far better (lower) are regarded as standard for Grownups. Noise publicity in the beginning impacts Listening to most at frequencies around 3000-6000 Hz, creating https://spencerlvldj.answerblogs.com/38008313/5-easy-facts-about-canine-restlessness-at-night-described