| 摘要 |
The invention relates to a loudspeaker system with power consumption control. The loudspeaker system comprises a powered audio bus, a bus driver connected to the powered audio bus where the bus driver feeds control information and audio information into the audio bus. The system further comprises loudspeaker nodes connected to the powered audio bus, where each of the nodes comprises a loudspeaker and an amplifier for driving the loudspeaker based on power from the audio bus, the control information and the audio information. The loudspeaker system further comprises a power consumption control arrangement arranged to reduce a power consumption of the loudspeaker nodes. The power consumption reduction may be obtained on basis of monitored parameters and may be performed for example by entering a standby mode, by reducing the bus voltage which powers the loudspeaker nodes, by reducing a switch frequency of the amplifiers and by other means. |
