A novel method to represent the speech signals by using language and speaker independent predefined functions sets
Ümit Güz, Hakan Gürkan, Binboğa Sıddık Yarman · 2004
In this paper, a new modeling method of speech signals is introduced. The proposed method is based on the generation of the so-called predefined signature S = {s/sub R/(t)} and envelope function E = {e/sub K/ (t)} sets (PSEFS). The function sets are independent of any speaker and any language. Once the speech signals are divided into frames with selected lengths, then each frame signal piece X/sub i/(t) is synthesized by means of the mathematical form of x/sub i/(t) = C/sub i/e/sub K/(t)s/sub R/(t). In this representation, C/sub i/ is called the frame coefficient, s/sub R/(t) and e/sub K/(t) are properly assigned from PSEFS respectively. It is shown that the proposed method provides fast reconstruction and substantial compression with acceptable hearing quality.