| 摘要 |
PROBLEM TO BE SOLVED: To provide a recording medium that reproduces a surround sound of a rear channel in a duplication speaker system. SOLUTION: A duplication system is made up of a master reproducing device 1 that reproduces a medium on which a signal to obtain a surround sound effect is recorded, a surround decoder circuit 10a that decodes the surround signal, a sound image localization processing circuit 10d that applies time base convolution arithmetic processing to a rear channel signal, adders 10e, 10f that add the signal subject to the convolution arithmetic processing and stereo signals of 2 front channels, sound signal distributers 2, 3 that distribute signals outputted from the adders, and slave sets 5-1-5-n or the like that record the distribution signal to obtain a recorded medium. |
