| 摘要 |
PROBLEM TO BE SOLVED: To obtain a recording medium where a recording signal which has a prescribed function added to a source signal is recorded. SOLUTION: A sound recorder is provided with an Lch(left channel)-side B.P.F. 61 which allows a vocal band of an Lch input signal to pass through, an Lch-side B.E.F 71 which has characteristics approximately opposite to those of the Lch-side B.P.F. 61 and attenuates or removes the vocal band, an Rch(right channel)-side B.P.F. 6r which allows a vocal band of an Rch input signal to pass through, and an Rch-side B.E.F 7r which has characteristics approximately opposite to those of the Rch-side B.P.F. 6r and attenuates or removes the vocal band. The difference signal between the output signal Lch-side B.P.F. 61 and that of the Rch-side B.P.F. 6r is added to the output signal of the Lch-side B.E.F. 71 or the Rch-side B.E.F. 7r to generate an Lch recording signal and an Rch recording signal, and they are recorded in a CD-R/RW 10. |
