Abstract
A new scheme of speech synthesis by rule was presented which could be implemented in ROM less than 4M bytes. The features of our scheme are consist in the use of the vector quantization of LSP parameters for VCV instance and table look-up process. A few dozens of VCV instances were picked up from speech signal for each VCV unit in order to cope with different phonemic enviroments. As many as 128 representative vectors were verified to be sufficient experimentally by hearing test of synthsized voice. This number of 128 made our scheme feasible from view points of memory size and calculation time. The memory size of VCV unit dictionary could be less than 256K bytes. When VCV instances were concatenated by selecting appropriate VCV instances through DP, distance table between 128 representative vectors were looked up in order to speed up process.
