Hearing occurs when sensory hair cells in the inner ear convert sound into neural signals transmitted to the brain. The sensory hair cells have about a dozen communication points with the auditory nerve fibers, called synapses. Scientists from the Institute for Auditory Neuroscience at the University Medical Center Göttingen discovered that the synapses of a single sensory hair cell process sound information differently. This diversity contributes to processing of a wide range of sound volumes. Published in The EMBO Journal.