Effect of anti-aliasing filtering on the quality of speech from an HMM-based synthesizer

This paper investigates how the quality of speech produced through statistical parametric synthesis is affected by anti-aliasing filtering, i.e., low-pass filtering that is applied prior to (down-) sampling prerecorded speech at a desired rate. It has empirically been known that the frequency response of such anti-aliasing filters influences the quality of… CONTINUE READING