| 摘要 |
PROBLEM TO BE SOLVED: To provide an amplifier capable of providing sound with excellent quality even in a standby through mode.SOLUTION: A control unit supplies a power source from an auxiliary power source to a sound signal processing unit in a standby through mode. In the standby through mode, the control unit extracts a sound signal included in an input HDMI signal, outputs a high frequency component from an input/output unit to a television, for example, and outputs a low frequency component from a sound output terminal to a speaker (e.g. sub-woofer) incorporating an amplifier function. Consequently, a user can view contents together with powerful bass on the television without driving an amplifier circuit occupying a most part of power consumption in an amplifier through the use of a main power source, i.e. while suppressing the power consumption of the amplifier. |
