| 摘要 |
PURPOSE:To allow one device to distribute signals complying with a 3-1 system, a 2-2 system, a 3-0 system and a 2-1 system by combining two signal distributors for one-input and two-outputs, and a normal and reverse changeover switch for two-inputs and two-outputs and distributing and outputting the various kinds of four-channel stereoscopic sound and sound signals. CONSTITUTION:A sound signal distributer 1 is constituted of pan pot devices 2 and 3 for the stereo of one-inputs and two-outputs, the normal and reverse changeover switch 4 for two-inputs and twooutputs, and variable attenuators 5, 6, 7 and 8. For the four-channel stereoscopic sound through front-three and back-one channel system (3-1 system), the switch 4 is normally changed over, and an input terminal (a) is connected to an output terminal (c.), and an input terminal (b) to an output terminal (d). With this connection, a 1st output ends up with being an output for a central channel (c) in front-three channels, 3rd and fourth outputs being outputs for a channel L and a channel R in front-three channels, and a 2nd output being an output for a back channel S. |
