Hearing device with equalisation filter in a filterbank system

摘要

The device has a filter bank system with a multi-layer analysis filter bank (AFB) and a multi-stage synthesis filter bank (SFB) to separate an input signal of the hearing apparatus into multiple sub-band signals by a set of filter bank channels and/or to again merge the sub-band signals. The filter bank system has an equalization filter (EQ) to compensate differences of complex frequency responses between the filter bank channels. The equalization filter compensates damping or amplification differences and group delay differences between the filter bank channels.