Introduction
... und - soft and loud sounds, and sounds that are high and low in pitch. Sounds are transmitted through sound waves ... » Read on
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Side effects
... han they might normally do. For example, they may cry in a high-pitched tone. In a recent study, it was found that ... » Read on
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Why it is necessary
... d's hearing is within the normal range of volume (loudness) and pitch (high and low sounds). In between these regu ... » Read on
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