Adaptive Sampling of Speech Signals
A. Mostafa, M. El-Hagry · IEEE Transactions on Communications · 1974
The present work gives a proposed method of sampling speech signals with a nonuniform sampling rate according to the magnitude of the slope of the signal, provided that the average sampling rate satisfies Shannon's requirements. With this proposed method, the quality of the reconstructed speech signal is improved. Experimental results have been compared with those obtained mathematically, and satisfactory agreement is indicated.