| 摘要 |
PURPOSE:To simplify the constitutions of a telephone set with voice response function by providing the 2nd sound source section generating a single tone signal source to a voice synthesizer having a sound source section and a filter section to output a 2-tone dial signal. CONSTITUTION:The titled synthesizer consists of two functions of a voice synthesizing and a dialing, and the function of sound synthesizing consists of a sound section 1 having a voice generating section 1a generating a pulse signal simulating a voice, a silence generating section 1b generating white nose simulating silence, a digital filter section 2 simulating a vocal cord, a D/A converter 3 and an LPF4 and the voice based on a voice parameter signal Dn is synthesized and outputted. On the other hand, the function of the dial device is constituted by adding the 2nd sound source section 11 comprising only the voice generating section 1a and a digital adder circuit 12 to the function of the voice synthesizer, and a dial code signal Dk from a key encoder 13 is given to each section as a control parameter. |
