| 摘要 |
<p>PURPOSE:To make utterance of a numerical data approximate to a man's natural utterance having accent by outputting a voice by a sound pressure level which is different in each digit of the numerical data of plural digits. CONSTITUTION:Two ROMs 6a, 6b for storing each different sound pressure data are provided on an ROM6, and one of them is designated by a changeover switch 8. In accordance with a count data of a digit counter 5, a sound pressure data of binary logic outputted from K0, K1 and K2 of the ROM6 corresponds. In the ROM6, when the ROM6a is selected by the changeover switch 8, a D/A converter 9 increases successively voltage Vn outputted to a differential amplifier 7, in the process in which a digit count data is varied to 8-1. The differential amplifier 7 compares a difference of an inputted sound signal Va and the sound pressure signal Va, and outputs a sound signal of sound pressure being proportional to its difference to a loudspeaker 10.</p> |
