提出一种基于DSP的全数字助听器宽动态压缩算法。
This paper puts forward the algorithms of wide dynamic range compression for digital hearing aid(DHA) based on DSP.
结论：老年性耳聋患者配戴全数字助听器效果优于模拟助听器。
Conclusion: the digital aid has more satisfied effects on elder deafness than the imitating aid does.
目的：比较模拟助听器与全数字助听器对中重度老年性听力障碍患者的助听效果。
Objective: To compare the hearing effects of imitating and digital hearing AIDS on middle and serious elder deafness.
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