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DigiFocus Ⅱ对声音的补偿是全范围的。听力损失因人而异,对同一个人来讲他在各个频率点的听力损失一般是不同的,这就要求在不同的频率点有不同的放大量。一般较高档的模拟助听器可将输入的声音分成2—3个频段。由于听力损失往往很复杂,各频段的放大量需要做精确调整才能达到最佳的助听效果。下图左表示的是具有两频段的助听器听力补偿情况,图中白色区域为放大量,“+”号表示的是放大过度情况,“-”号表示的是放大不够情况,由于助听器只有两频段,无论怎
DigiFocus II compensates for the full range of sound. Hearing loss varies from person to person, for the same person in terms of hearing loss at each frequency point are generally different, which requires different magnifications at different frequencies. The more sophisticated analog hearing aids divide the incoming sound into 2-3 bands. As hearing loss is often complicated, the amount of amplification in each band needs to be precisely adjusted to achieve the best hearing aids. The figure on the left shows the hearing aid hearing aid with two frequency bands. The white area in the figure is a magnified volume, the “+” sign indicates the over magnification, and the “-” sign indicates that the enlargement is insufficient. Hearing aids have only two bands, no matter what