| 摘要 |
PROBLEM TO BE SOLVED: To provide a speaking speed conversion device of I/O stereophonic system capable of highly precisely performing the speaking speed conversion process by easy circuit constitution. SOLUTION: When the input voice signals of left and right channels Lo, and Ro are inputted to the signal separation part 1 which separates into the common mode component signal Cv' contained in the left and right channels and the back ground sound signals Lb', and Rb' obtained by removing the common mode component signal Cv' from input voice signals Lo, and Ro respectively. In the common mode component signal Cv', speaker's signal who is staying at the center is contained, and the speaker's voice signal Cv is extracted by the filter 2. The speaker's voice signal Cv is subjected to the speaking speed conversion process of the speaking speed conversion part 3, the processed speaker's voice signal V is added to the back ground sound signals Lb' and Rb' which were separated at the signal separation part 1, by the left and right adders 4a, and 4b respectively. COPYRIGHT: (C)2005,JPO&NCIPI
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