| 摘要 |
PURPOSE:To enjoy satisfactory presence by executing time base multiplexing to the audio signal of four channels and recording the signal. CONSTITUTION:Respective microphones 11 catch respective tones directing from four different directions to a virtual optimum listening point and the tones are converted to electric signals and given to a correspondent analog/ digital converting means 13. Next, the time base multiplexing is executed by a multiplex processing means 15 to the 4 channel audio signal converted to digital signals. After that, processing (for example, parallel/serial conversion or modulation processing, etc.,) is executed so as to record the signal by a recording means and the signal is recorded to a recording medium. Thus, the satisfactory presence of the large scale of the tone by the 4 channel audio signal can be produced. |
