Signal level limitation method for digital hearing aid has sampling rate of digital signal raised prior to limitation of maximum signal value

摘要

The limitation method has the sampling rate of the time discrete signal to be limited raised after A/D conversion via an A/D converter (2), which samples the output signal of the hearing aid input transducer (1), with subsequent limitation of the maximum value of the sampled signals at the higher rate. The raising of the sampling rate can be provided via a sampling rate expander (7) and an interpolator (8), inserted in the signal path between a signal processing stage (3) for the A/D converter output and the signal limitation stage (5), connected in front of the output transducer (6). An Independent claim for a digital hearing aid with signal level limitation is also included.