syn·the·sis 
/ˈsɪnθəsəs/ noun
plural syn·the·ses /ˈsɪnθəsəs/ noun /-θəˌsi:z/ 1 [count] formal : something that is made by combining different things (such as ideas, styles, etc.) — often + of ▪ The band's sound is a synthesis of jazz and rock music. ▪ His theory is actually a synthesis of several other theories. 2 technical : the production of a substance by combining simpler substances through a chemical process [count] — usually singular — often + of ▪ the synthesis of water from hydrogen and oxygen [noncount] ▪ protein synthesis — see also photosynthesis 3 [noncount] : the production of sounds or speech by using electronic equipment
▪ voice/speech synthesis
▪ voice/speech synthesis
