| 摘要 |
A system and method for playing audio material is described. The audio material is illustratively downloaded from a network, or from a storage media, each coupled to a loudspeaker through a speaker drive unit. A speaker authorization signal is provided to the speaker drive unit from the network or storage media. The speaker drive unit provides an audio signal to the loudspeaker if the authorization signal indicates that the loudspeaker is authorized to play the audio material. The speaker drive unit does not provide an audio signal to the loudspeaker if the authorization signal indicates that the loudspeaker is not authorized to play the audio material. The system and method includes a monitoring unit to furnish a signal indicating the sound generated by the loudspeaker, to be stored, and to determine whether the loudspeaker has played the audio material.
|
