| 摘要 |
A means for controlling the volume level of multiple devices during media playback. The invention comprises a transmitter and receiver pair. The transmitter 201 is configured to; receive audio data from a source; generate volume control data; couple the volume control data and audio data into a packet; wirelessly 100 broadcast the packet. The receiver 202 is configured to; wirelessly 100 receive the broadcast packet; determine the volume level for playing the audio data; outputting the audio data at the determined volume level. It is implicitly disclosed that the volume control data and audio data are uncoupled by the receiver. The hub device 201 may comprise a user interface 203. The broadcast may be uni-directional. The wireless communication may be via Bluetooth (RTM), with the broadcast being a connectionless slave broadcast. The volume may be represented in dB, dBm, dBfs or dBv. The volume control data may be generated based upon user input. |
