| 摘要 |
PURPOSE:To provide possibility of hearing a talk with a retarded talk speed with no change in the feature of the hearer's voice by changing the talk speed without changing the pitch of the input voice only during the specified time when the hearer requires it. CONSTITUTION:A voice is fed to a microphone 321, emitted as a voice signal, digital converted at certain time intervals by an A/D converter 5 upon passing through an amplifier 10 and low-pass filter 7, and subjected to a talk speed converting process to be made by a software 11 on a digital signal processor (DSP) 1. A PTL, switch 4 is connected with a terminal 13 for external interrupt flag contained in the DSP 1, and the software 11 on the DSP 1 judges whether talk speed conversion should take place depending upon the numerical value of a flag register 14. When the hearer needs talk speed conversion, it is done without changing the pitch of the input voice only during the specified time. Accordingly this talk speed converting device can be used even in the situation such as in talking, and the hearer can select the voice to which a talk speed conversion should be applied. |
