| 摘要 |
PURPOSE:To execute sound recording and reproducing of a stereophonic signal interchangeable between a loudspeaker reproducing and a headphone reproducing by executing a signal processing corresponding to the converting function of a transfer function related to the addition of reverberation when generating a source, in a sound recording side, and executing a signal processing related to a direct sound component at the time of reproducing. CONSTITUTION:Two-channel signal SL and SR generated for reproducing a loudspeaker are used as main signal LM and RM, also the signal SL is impressed to networks 6, 8 and 9 of transfer functions RL1, RLr and DLr, the signal SR is impressed to networks 4, 5 and 7 of transfer functions DR1, RR1 and RRr, and each output is added by adders 31, 32. Subsequently, in the reproducing side, the main signals LM, RM are impressed to networks 10, 11 having transfer functions DL1, DRr, respectively, outputs of the networks 10, 11, and sub-signals LS (RS) are added by adder 33 (34), and outputs of the adders 33, 34 are impressed to a headphone 16. In this regard, transfer functions D, R are related to a direct sound component and an indirect sound component, respectively, subscripts L, R are related to left and right signals, respectively, and subscripts l, r are related to the left and right of ears, respectively. |
