An approximation method is described for the design of low-pass filters where the input has a frequency-dependent spectrum. These filters are used in speech processing systems. The proposed method, being closed-form Solution, is more reliable and requires much less CPU time compared to the previously used methods. The developed algorithm can be incorporated into any suitable general synthesis program.

Additional Metadata
Persistent URL dx.doi.org/10.1109/TCS.1979.1084626
Journal IEEE Transactions on Circuits and Systems
Citation
Nakhla, M.S. (1979). Approximation of Low-Pass Filters with Frequency-Dependent Input Gain Characteristic. IEEE Transactions on Circuits and Systems, 26(3), 198–202. doi:10.1109/TCS.1979.1084626