| 摘要 |
PURPOSE:To obtain a frequency characteristic when a sound signal source is selected previously without adjustment of the frequency characteristic by providing a memory circuit storing a frequency characteristic data deciding the frequency characteristic of a frequency characteristic adjusting circuit corresponding to the sound signal source. CONSTITUTION:A signal from a selected sound signal source by a changeover circuit 8 of a sound signal control circuit 2 is given to a frequency characteristic adjusting circuit 10, a control circuit 12 sends a characteristic setting data of the sound signal source from a memory circuit 9 depending on the information of signal selection to set the state of the frequency characteristic adjusting circuit 10. After the sound signal is selected, when the operation of the frequency characteristic change is fed to an operation section 11, the control circuit 12 sends a data to the frequency characteristic adjusting circuit 10 according to the operation to set the state newly and rewrites the data to decide the frequency characteristic for the selected sound signal source of the memory circuit 9. Thus, the sound signal sources 5-7 are switched selectively and the frequency characteristic corresponding to the sound signal sources 5-7 is obtained without the operation of the frequency characteristic adjusting circuit 10. |
